Anyone having charging issue. I ran my shield battery down when I first got it. Then I plug it in to charger. Its been charging over 8 hours and still not at 100 percent. took it off charge at 80 percent. No way it should take this long. I read on reviews it took like 4 to 5 hours.
evobunny said:
Anyone having charging issue. I ran my shield battery down when I first got it. Then I plug it in to charger. Its been charging over 8 hours and still not at 100 percent. took it off charge at 80 percent. No way it should take this long. I read on reviews it took like 4 to 5 hours.
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You used the charger that it came with? And you're not playing games the entire time it's charging, right?
agrabren said:
You used the charger that it came with? And you're not playing games the entire time it's charging, right?
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yes I use charger that came with it. and it was charging over night when I was sleeping.
That sounds really odd. What does the battery usage say for the device? Was it awake the whole time? Does it think it was charging all night?
Sent from my HTC One using XDA Premium HD app
I feel like that has happened on my nexus 7 before. I bet it is an android thing. I would try again and see if it acts up a second time.
agrabren said:
That sounds really odd. What does the battery usage say for the device? Was it awake the whole time? Does it think it was charging all night?
Sent from my HTC One using XDA Premium HD app
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Click to collapse
when I was charging, i close the screen. so it went to sleep. I dont know how you can tell if it think it was charging all night. I went to battery info and its said 13.6 hours on battery. and 48 percent of that was screen usage. rest was on game and apps.
evobunny said:
when I was charging, i close the screen. so it went to sleep. I dont know how you can tell if it think it was charging all night. I went to battery info and its said 13.6 hours on battery. and 48 percent of that was screen usage. rest was on game and apps.
Click to expand...
Click to collapse
If you go into the "Battery Info" and touch on the graph area, it'll show you below some bars of time spent on different functions (like charging)
evobunny said:
when I was charging, i close the screen. so it went to sleep. I dont know how you can tell if it think it was charging all night. I went to battery info and its said 13.6 hours on battery. and 48 percent of that was screen usage. rest was on game and apps.
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Click to collapse
1. Sometimes the battery indicator on Android can take a while to figure out your battery. It might drop 5 percent in ten minutes then take an hour to drop 5 more.
2. The vent area on my Shield seems warmer than the surrounding plastic even when in sleep for a while, so it may be drawing more power than is charging. Just try turning it off and charging it.
oushidian said:
1. Sometimes the battery indicator on Android can take a while to figure out your battery. It might drop 5 percent in ten minutes then take an hour to drop 5 more.
2. The vent area on my Shield seems warmer than the surrounding plastic even when in sleep for a while, so it may be drawing more power than is charging. Just try turning it off and charging it.
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Which vent area? Front or back? Because batteries do warm up when you charge them, and those are some big batteries (and a full 2 amp charge)
agrabren said:
Which vent area? Front or back?
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The smooth part on the bottom back with the model number, FCC, etc. And it's not when I'm charging but when the lid is closed. If I manually power it down then the warm goes away.
i never recommend running your device down when it comes straight out the box. usually i tell people to just fully charge the device first before running it dry therefore it can register the full battery, personally i would not leave a device connected over night just for the simple fact that it can be one in a million that the device might get screwed over a long period of time.
it be nice to know if the problem is fixed or not and what you did just in case others run into this same problem.
ive had no charging issues yet. batts do tend to get nice and warm tho.
but for what its worth i just noticed that im still getting notification sounds from my Shield even tho the lid is closed. so maybe its some kind of hybrid sleep and if you have some rogue app pulling a ton of CPU cycles & its not going into full sleep so its taking longer to charge?
just some food for thought on your issue
s0me guy said:
ive had no charging issues yet. batts do tend to get nice and warm tho.
but for what its worth i just noticed that im still getting notification sounds from my Shield even tho the lid is closed. so maybe its some kind of hybrid sleep and if you have some rogue app pulling a ton of CPU cycles & its not going into full sleep so its taking longer to charge?
just some food for thought on your issue
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Click to collapse
Like most Android devices, the device goes to "sleep". Unless you power it off, it still handles notifications, and it still talks on WiFi. But it should consume very little power.
elitecmdr666 said:
i never recommend running your device down when it comes straight out the box. usually i tell people to just fully charge the device first before running it dry therefore it can register the full battery, personally i would not leave a device connected over night just for the simple fact that it can be one in a million that the device might get screwed over a long period of time.
it be nice to know if the problem is fixed or not and what you did just in case others run into this same problem.
Click to expand...
Click to collapse
Modern devices use LiPi or Li-ion batteries, these explode when overcharged (seriously, youtube search overcharge lipo). As a result all devices sold with this kind of battery have charge monitoring tools and will disconnect the battery from the charging circuit when full, also they should then run purely from the mains power when the battery is full rather than running on the battery again (they don't like the repeat connect/disconnect effect that would lead to). End result, can't overcharge it.
The heat on mains power tends to be from the voltage regulator. These devices don't run on 5V power like comes from the charger. They tend to use a combo of switch mode and linear regulators to drop the 5V to 3.3V for the CPU and peripherals (3.3 is most common at any rate). Linear regulators in particular get quite warm. Switch mode regulators don't get so warm but don't give a clean output the CPU will run nicely on, they have the odd drop or spike which would either reset or fry the CPU, so generally what happens is the switch mode reg drops a large chunk of the voltage and then feeds it into a linear reg to drop the rest of the way (*the less voltage a linear reg has to drop the less heat it produces). From 5V to 3.3V it is most likely going to be purely a linear regulator, with the CPU and screen drawing at least 1A of current and a 1.7V drop that would equate to 1.7W of heat produced, not much, but enough that if you were to put your finger on the bare regulator chip it would come away red, hold it there long enough and it would be somewhat like those competitions kids have over who can keep their hand on the hot radiator longest That is the main reason they will get hot.
The batteries in these devices are usually 3.7V, that would need a separate regulator from above, and another regulator would still be needed to go from 3.7 > 3.3. 3.7>3.3 would not get so warm. 5>3.7 would still be warm as above.
Never fully drain a LiPo. Gets too low and you damage the cell ir-repairably. When the device claims it is at 0% charge and shuts off is usually closer to 10-20% charge. But that is still considered too low by some people. General advice if you want to prolong the lifetime of your battery is to turn the device off and charge it when it reports somewhere around 5-10% charge.
Batteries do get warm while charging. But my bet is that the voltage regulators would be far more significant heat producers.
agrabren said:
Like most Android devices, the device goes to "sleep". Unless you power it off, it still handles notifications, and it still talks on WiFi. But it should consume very little power.
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good to know. :good: i didnt think closing the lid was the same as pushing the power button on my phone to turn the screen off.
but the OP's problems still might be "sleep" related.
prime example my SGS3 batt life started to tank after the 1st VZW JB update. it took twice as long to charge & would never "sleep" (cuz of the OS not a app) but since the Tegra 4 is a much higher profile chip it could suck a bit more juice if its not being aloud to fully sleep, for whatever reason.
like you said tho, looking at the battery stats could easily tell us if this is the issue.
SixSixSevenSeven said:
Modern devices use LiPi or Li-ion batteries, these explode when overcharged (seriously, youtube search overcharge lipo). As a result all devices sold with this kind of battery have charge monitoring tools and will disconnect the battery from the charging circuit when full, also they should then run purely from the mains power when the battery is full rather than running on the battery again (they don't like the repeat connect/disconnect effect that would lead to). End result, can't overcharge it.
The heat on mains power tends to be from the voltage regulator. These devices don't run on 5V power like comes from the charger. They tend to use a combo of switch mode and linear regulators to drop the 5V to 3.3V for the CPU and peripherals (3.3 is most common at any rate). Linear regulators in particular get quite warm. Switch mode regulators don't get so warm but don't give a clean output the CPU will run nicely on, they have the odd drop or spike which would either reset or fry the CPU, so generally what happens is the switch mode reg drops a large chunk of the voltage and then feeds it into a linear reg to drop the rest of the way (*the less voltage a linear reg has to drop the less heat it produces). From 5V to 3.3V it is most likely going to be purely a linear regulator, with the CPU and screen drawing at least 1A of current and a 1.7V drop that would equate to 1.7W of heat produced, not much, but enough that if you were to put your finger on the bare regulator chip it would come away red, hold it there long enough and it would be somewhat like those competitions kids have over who can keep their hand on the hot radiator longest That is the main reason they will get hot.
The batteries in these devices are usually 3.7V, that would need a separate regulator from above, and another regulator would still be needed to go from 3.7 > 3.3. 3.7>3.3 would not get so warm. 5>3.7 would still be warm as above.
Never fully drain a LiPo. Gets too low and you damage the cell ir-repairably. When the device claims it is at 0% charge and shuts off is usually closer to 10-20% charge. But that is still considered too low by some people. General advice if you want to prolong the lifetime of your battery is to turn the device off and charge it when it reports somewhere around 5-10% charge.
Batteries do get warm while charging. But my bet is that the voltage regulators would be far more significant heat producers.
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yes while all this your saying is true i still wont risk it. i say this from experience had a note 10.1 and would leave it over night charging and sure enough it ended up screwing up. might of been there was something wrong with the device itself but still. good post on your behalf though :laugh:
but still im paranoid and prefer to just disconnect once its charge it wont hurt
elitecmdr666 said:
yes while all this your saying is true i still wont risk it. i say this from experience had a note 10.1 and would leave it over night charging and sure enough it ended up screwing up. might of been there was something wrong with the device itself but still. good post on your behalf though :laugh:
but still im paranoid and prefer to just disconnect once its charge it wont hurt
Click to expand...
Click to collapse
I tend to go into way too much detail sometimes :/
Disconnecting can't harm it at least if that's what you prefer.
As for info source. Quite into electronics and robotics, intact the shield would make a good controller for robotics purposes
well i did my second charge last night. and this time much faster, about 5 hours to 100 percent. guess i dont have a problem after all. dont know what happen the first time.
SixSixSevenSeven said:
I tend to go into way too much detail sometimes :/
Disconnecting can't harm it at least if that's what you prefer.
As for info source. Quite into electronics and robotics, intact the shield would make a good controller for robotics purposes
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Click to collapse
no worries lol i tend to get spaced out at times and go into details does not hurt to enlighten people :good:
Related
Hello!
Does the phone or battery itself has over charge protection?
Is it safe leave the phone connected to a computer/charger all the time?
I've been using HTC Hermes for 2 years and already replaced 3 batteries, not sure if it was due to phone was connected to a charger for at least 12 hours a day or something else..
Thank you.
technically it should'nt be an issue. the phone can detect when its battery is full and can set itself to trickle charge (atleast that's what i've been told). You do want to atleast have it drain itself full once a month or have it off the power line ever so often to keep the energy moving otherwise it goes stagnant. (not exactly stagnant, but you know what i mean.. right?)
Draining battery is not a problem, the phone does a good job doing just that
With all the technology one could assume that an advanced phone like this would have a overcharge protection. But wanted make sure that it does.
[email protected] said:
With all the technology one could assume that an advanced phone like this would have a overcharge protection. But wanted make sure that it does.
Click to expand...
Click to collapse
No convinced it does myself. All the add-on chargers, cradles, etc. highlight having overcharge protection if they're any good. So perhaps it (overcharge protection) is a functionality of the charger and not the phone itself?
I know that when my phone is charging (battery not 100%) it's cool to touch, but when on charge (USB cable from PC, sync active) when the battery is full it's mildly warm to touch. Perhaps suggesting that incoming un-needed power is being converted into heat for dissipation?
To me, I think the phone probably has overcharge protection (whether it be the charging source, or teh phone itself by heat dissipation), but if your constantly leaving it on charge then perhaps the constant warmth is what's reducing your battery life?
Most charging control electronics is inside the phone, with some parts
inside the battery, like overheating protection and battery cell diagnostics.
Charging control checks the voltage rise during charging (actually difference
beetwen voltage before charging pulse and after that, so called delta voltage),
and when it reaches certain threshold, a charging unit switches to trickle
charging, which means "charging" with 1/10 or less of normal charging current,
amount which cannot cause perceivable warming. Most of warming happens
on final stage of normal charging, when battery is almost full, and its charge
accumulation efficiency drops, but is still being charged with the same current,
part of which, that cannot be accumulated, is dissipated as heat.
Heat dissipation
That heat dissipation is what has always concerned me. So I have bought extra batteries and external charges. I use the TP for business and some days out of the office a lot. Not unusual to go to two, occasionally three batteries in a day. That issue is my only "complaint" about this phone.
Hello everyone
I was wondering if its ok to leave the transformer connected to the charger.
Is it like the Evo with trickle down when it reaches 100%
I dont want to over charge it. If it were my laptop i would disconnect the battery at full charge. But its not possible to do that with the transformer.
I want to keep my cycle count low and prevent over charing.
I also wonder what happens in a few years when the battery is shot...
Charging is what damages Li-Ion batteries... I'd recommend not keeping it on the charger all the time. Android will purposely not keep the battery at 100% to help avoid some damage.
Li-ion prefer to be around 20-80% charge.
When battery is 100% and you keep the charger connected, heat will begin to build up and eventually you will kill your battery.
I'd do as with a notebook: charge till 100%, then remove battery or charger (in case of the tablet charger ) . Then use your tablet and recharge when needed / desired. And from time to time a full charge / discharge cycle won't do any harm.
Just my 2 cents.
Regards.
These tablets don't automatically recognize when it's fully charged and turn off the charging?
Ravynmagi said:
These tablets don't automatically recognize when it's fully charged and turn off the charging?
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Click to collapse
They do. There are other threads asking why thier TF's don't show 100% when unplgged from the charger. Same as it does on my Evo.
I think pretty much every modern device recognizes a full charge and responds accordingly. In fact, MacBooks will throttle performance if the battery ISN'T kept in while the system is running on A/C.
Heat will damage a battery, but it's not heat from charging but heat from operation. If a notebook is poorly designed and the battery is near a heat source, then removing the battery might be a good idea (except with the aforementioned MacBooks), but that's independent of the charging issue.
I think it's fine to keep it plugged in. These devices are smart enough to manage such things. Of course, the TF's charging cable's so short it's hard to use when plugged in, but that's a different issue entirely.
CalvinH said:
When battery is 100% and you keep the charger connected, heat will begin to build up and eventually you will kill your battery.
I'd do as with a notebook: charge till 100%, then remove battery or charger (in case of the tablet charger ) . Then use your tablet and recharge when needed / desired. And from time to time a full charge / discharge cycle won't do any harm.
Just my 2 cents.
Regards.
Click to expand...
Click to collapse
From what I understand this process cannot and will not kill the battery. This did happen in the old type of batteries with the ,emory effect but these new batteries and the OS's management system for charging does not allow the battery to be killed.
it will heat up and that would happen as there is a flow of electricity but not to a level that would kill the battery.
Cheers
IS it normal to go from 4% battery to 99% in under 3 hours ?
I thought this was supposed to take 8 hours to charge.
Cheers,
gpearson1968
gpearson1968 said:
IS it normal to go from 4% battery to 99% in under 3 hours ?
I thought this was supposed to take 8 hours to charge.
Cheers,
gpearson1968
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Click to collapse
Yes that's normal. It's meant to take about 3hrs.
Thanks guys...
Still dont know about it. Because I think its like my EVO and technology got so good that my battery is protected.
I really dont want my transformer to become a expensive paper weight or non-mobile because after a few years it has 45 mins battery life.
I've got the first full charge and full depletion done. Is it ok to use while charging now as long as I fully charge and fully deplete it a couple more times?
error12 said:
Thanks guys...
Still dont know about it. Because I think its like my EVO and technology got so good that my battery is protected.
I really dont want my transformer to become a expensive paper weight or non-mobile because after a few years it has 45 mins battery life.
Click to expand...
Click to collapse
batteries will degrade over time....would you be keeping this tablet for over 2-3 years? a simple battery change could work if ever needed
I am no expert, but I have spent some time searching around the internet looking for information on the best methods for improving the life of a battery. Most of the information I have found said it is bad to completely discharge a Li-polymer battery. The articarles stated it was best to charge the battery when it reaches 20% to avoid shortening its life.
Sent from my DROIDX using XDA App
Batteries are like muscles - they like to be exercised.
Leaving the unit plugged in WILL NOT HURT YOUR BATTERY. Period. The charging circuitry in modern devices is smart enough to cut current to the battery once it has reached a certain level of resistance.
Batteries do not like being deeply discharged. Most devices will shut off before the battery gets too deeply discharged, but it's never a good idea to tempt fate by running it until the device shuts off.
What really determines a battery's life is the number of cycles it has been put through. A cycle would be a full charge followed by a full (or to a lower end threshold) discharge.
The old original Lithium Ion batteries used in laptops would usually last about 300 full cycles or so - about a year if you used it on the battery every day. Partial discharges of course only count as fractions of a cycle.
Given the life of these types of devices, considering we'll likely upgrade to the next big thing in a year or so, I don't think anyone here will come close to 'wearing out' a battery.
EMINENT1 said:
I've got the first full charge and full depletion done. Is it ok to use while charging now as long as I fully charge and fully deplete it a couple more times?
Click to expand...
Click to collapse
As stated, these are Li-Ion batteries, and they do not need to be trained. The only reason you might need to do any training is to calibrate Android's understanding of the battery (although I doubt you need to do a full discharge for that, either).
It's not going to suddenly kill it, but it will over time hurt your battery's life.
I went ahead and did a full discharge/charge cycle, but only because Asus said to do so in the manual. Maybe the copywriter just copied/pasted from a circa 1990's manual for a device with a NiCd battery, but I figured if they're suggesting it, I might as well do it.
Hi all.
I've over-discharged my stock battery and now it doesn't charge. It lights up green as soon as I plug the charger. I've tried different chargers but didn't help.
I've made this using short circuit so don't think it's related to Sensation. You may ask why I tought over-discharging may solve the touchscreen issues. Don't know if it's solved because phone doesn't open.
Do you have any advice to restore the battery rather that getting a new battery? I've already ordered new battery though.
Certain laptop battery manufacturers use a circuit which stores battery charge information, but is itself, "kept alive" by the residual current in (even a dead) battery.
I've seen the case on a number of times that discharging below the "allowed" level causes this circuit to fail, thus the communication between battery and device is incorrect, inaccurate or, at worst, not there at all.
(this is why there are more than just + - on your battery)
You could find the correct recharge rate for the battery - current and voltage - and charge it manually, and hope that said 'battery state circuit' comes back to life, but honestly, I think you'll be, as they say, SOL.
I've had perfectly good laptop batteries, holding a full charge, having a great discharge rate, but the laptop would refuse to accept it, just because of this little circuit.
WARNING: Charging / over charging / charging in a way other than in accordance with the original device literature can VERY likely cause the battery to fail completely, including, but not limited to FIRE or EXPLOSION! DO NOT PROCEED UNLESS YOU KNOW EXACTLY WHAT YOU ARE DOING. LiPo (and LiIon for that matter) are EXTREMELY DANGEROUS when used wrongly!
All the above said, have fun, don't blow yourself up, and let us know how you get on. Also, from a personal point of view, I'd be interested to know the 'technical reasons' behind the thought that over-discharging could solve the touch-screen problem - can you remember where you got the info originally?
Figure_desire said:
Hi all.
I've over-discharged my stock battery and now it doesn't charge. It lights up green as soon as I plug the charger. I've tried different chargers but didn't help.
I've made this using short circuit so don't think it's related to Sensation. You may ask why I tought over-discharging may solve the touchscreen issues. Don't know if it's solved because phone doesn't open.
Do you have any advice to restore the battery rather that getting a new battery? I've already ordered new battery though.
Click to expand...
Click to collapse
wtf? did you shortcut the battery or the phone? if shortcut the battery it my be blown. Anywyas you could try jump charging it, unplug and plug it in fast, or put it in a outlet which has a switch and try toggling it on and off for some minutes, you may be able to jump it up to the voltage it needs to start charge
niddnet said:
Certain laptop battery manufacturers use a circuit which stores battery charge information, but is itself, "kept alive" by the residual current in (even a dead) battery.
I've seen the case on a number of times that discharging below the "allowed" level causes this circuit to fail, thus the communication between battery and device is incorrect, inaccurate or, at worst, not there at all.
(this is why there are more than just + - on your battery)
You could find the correct recharge rate for the battery - current and voltage - and charge it manually, and hope that said 'battery state circuit' comes back to life, but honestly, I think you'll be, as they say, SOL.
I've had perfectly good laptop batteries, holding a full charge, having a great discharge rate, but the laptop would refuse to accept it, just because of this little circuit.
WARNING: Charging / over charging / charging in a way other than in accordance with the original device literature can VERY likely cause the battery to fail completely, including, but not limited to FIRE or EXPLOSION! DO NOT PROCEED UNLESS YOU KNOW EXACTLY WHAT YOU ARE DOING. LiPo (and LiIon for that matter) are EXTREMELY DANGEROUS when used wrongly!
All the above said, have fun, don't blow yourself up, and let us know how you get on. Also, from a personal point of view, I'd be interested to know the 'technical reasons' behind the thought that over-discharging could solve the touch-screen problem - can you remember where you got the info originally?
Click to expand...
Click to collapse
This is my second unit and it has touchscreen problems too. I'm not an expert but here is why I did that.
My phone was working normally and had %20 battery left. I went outside and didn't have extra battery or charger so I've used my friend's USB cable and lapto to charge it. After it reached to 44% I unplugged it and saw touchscreen issues started. I've searched and remembered some advices from XDA like discharging and charging may solve it so I gave it a try but it didn't help. Then tried over-discharging and charging but stock here.
What do you mean by charge it manually?
Utking said:
wtf? did you shortcut the battery or the phone? if shortcut the battery it my be blown. Anywyas you could try jump charging it, unplug and plug it in fast, or put it in a outlet which has a switch and try toggling it on and off for some minutes, you may be able to jump it up to the voltage it needs to start charge
Click to expand...
Click to collapse
I did short circuit the battery I know sounds crazy but I'm sick of touchscreen issues. Are you saying that I may try connecting it an appropriate charger's output directly like + > + , - > - ?
I'm saying, chances are, it's wrecked. You shouldn't really discharge batteries by short-circuit - that puts massive stresses on the structure of the cells in the battery and probably completely ruins it.
It can also cause excessive heat, which can lead to nasty things happening.
Recharging the battery by connecting + to + and - to - is theoretically possible, however, to do this SAFELY, you would need to know the manufacturer's recommended charge rate, times, voltages etc. They differ greatly.
Do it too slowly, and you just result in a very inefficient trickle-charge, which can sometimes do more harm than good....
Do it too fast - cells in the battery become gaseous, the gas vents, and you have fiery explosions... also not good.
Seriously - I would strongly recommend against playing with it. If you want to see what CAN happen when it goes wrong, YouTube it!!
http://www.youtube.com/watch?v=z3o_2mwRPdw
Insane amounts of energy stored in these batteries
niddnet said:
I'm saying, chances are, it's wrecked. You shouldn't really discharge batteries by short-circuit - that puts massive stresses on the structure of the cells in the battery and probably completely ruins it.
It can also cause excessive heat, which can lead to nasty things happening.
Recharging the battery by connecting + to + and - to - is theoretically possible, however, to do this SAFELY, you would need to know the manufacturer's recommended charge rate, times, voltages etc. They differ greatly.
Do it too slowly, and you just result in a very inefficient trickle-charge, which can sometimes do more harm than good....
Do it too fast - cells in the battery become gaseous, the gas vents, and you have fiery explosions... also not good.
Seriously - I would strongly recommend against playing with it. If you want to see what CAN happen when it goes wrong, YouTube it!!
Click to expand...
Click to collapse
Yesterday I connected the battery which is stock 3.7 V to the my digital camera's charger which is 4.25 V, 0.25 A, 50-60 Hz with cables for 6 hours but didn't work. BTW, stock charger is 5V, 1 A and 50-60 Hz.
Can I try jump charge with this camera's charger? If I can, how fast should I connect and disconnect the cable?
That's exactly what I'm talking about.
It should be noted that the Sensation stock battery is LiIon, rather than LiPo, but the effects can be very similar, and just as disasterous if that happens when your battery is in the vicinity of.... anything!!!
I think it's dead mate =/ but just switch it on and off a couple of times in a second
Utking said:
I think it's dead mate =/ but just switch it on and off a couple of times in a second
Click to expand...
Click to collapse
Couple of times in a second? I'm not a Flash man Or Shelden Cooper
Just tried but didn't work.
Short circuited battery? Hopefully it wasn't in the phone. Battery is dead, get Anker.
tinky1 said:
Short circuited battery? Hopefully it wasn't in the phone. Battery is dead, get Anker.
Click to expand...
Click to collapse
Already ordered stock battery. When Anker is available to Europe I will order it too.
Figure_desire said:
Already ordered stock battery. When Anker is available to Europe I will order it too.
Click to expand...
Click to collapse
Then buy the chichitek one, it's awesome and lasts just as long as the anker, if not longer, and they ship to europe! i got two chichitek batteries+ charger for 25$ usd inc shipping to norway
Anyone know where to get an extended battery? Thanks.
I can't even find a place to buy a regular battery for the phone. I'm not sure if I would need one, but it would be nice to have. I'm in the habit of charging it the last hour I am at work so no matter what, I'll never run out of battery even if I go somewhere straight from work, but a spare battery is always a good thing to have.
I have a wild guess as to why not.
I noticed this phone battery has the "near field communication" labeling on the BATTERY. The other phone that I'm aware of having NFC, (the galaxy s2) does NOT have this wording on the battery.
Why did I notice this? I randomly read that there is an SD card manufacturer that is putting NFC chip's into their microSD cards, and even some ipod cases are getting NFC chips built into them as well.
I don't know too much about NFC, but with the labeling being on our battery, and not the S2, I kinda think our NFC chip is actually in the battery, and not the phone itself. If an NFC chip can be put into an SD card or case on a phone that never had NFC to begin with, I don't see why it couldn't be put into a battery, especially since one of the terminals might not even be for power, but just for an NFC connection.
That's my theory, I could be wrong!
you're probably right. This is how it is with the Galaxy Nexus, also built by Samsung. I hadn't noticed the label, but I also wasn't looking for it.
I'd be curious to find out what an "extended battery" for this phone would look like. I'd be all for it so long as it kept NFC and didn't bulge out of the back
I'd be interested to find one. Being on a stock rom and standard battery, my battery drops about 5% in five mins just checking Facebook. GPS drains it another percent per min it is in use. Half way thru the day my battery is dead. It really sucks having to carry around a charger. I'm also using juice defender and other tweaks I know to save battery
I'd bet you a waffle cone your screen brightness is set too high.
Forget most of those "battery defender" apps, especially if they are those stupid task killing applications.....a program being in active memory is not necessarily actually doing anything, which means it is not using your battery, and if it gets killed, if the OS needs it open for any reason, it having to be re-opened will just use cpu cycles anyway
I'd agree with most people that using the automatic brightness option is very annoying, it's really sensitive and it also tends to make the screen not be bright enough. Having said that, using any of the many available brightness widgets can be a very good thing.
The stock one is not so bad, personally I've been enjoying powerful control, http://goo.gl/2vZXl but I've had great battery life and easy readability if I use the brightness setting where it looks like a half moon.
If you're outdoors in the bright sun, you'll need the screen to be as bright as possible if you want to read it, but otherwise it's fine. The screen brightness is always the single biggest battery usage factor.
Personally I've always disabled the haptic feedback as I think it's annoying and I'm sure that using vibrating alerts is also a huge battery drain.
Cirkustanz said:
I'd bet you a waffle cone your screen brightness is set too high.
Forget most of those "battery defender" apps, especially if they are those stupid task killing applications.....a program being in active memory is not necessarily actually doing anything, which means it is not using your battery, and if it gets killed, if the OS needs it open for any reason, it having to be re-opened will just use cpu cycles anyway
I'd agree with most people that using the automatic brightness option is very annoying, it's really sensitive and it also tends to make the screen not be bright enough. Having said that, using any of the many available brightness widgets can be a very good thing.
The stock one is not so bad, personally I've been enjoying powerful control, http://goo.gl/2vZXl but I've had great battery life and easy readability if I use the brightness setting where it looks like a half moon.
If you're outdoors in the bright sun, you'll need the screen to be as bright as possible if you want to read it, but otherwise it's fine. The screen brightness is always the single biggest battery usage factor.
Personally I've always disabled the haptic feedback as I think it's annoying and I'm sure that using vibrating alerts is also a huge battery drain.
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Click to collapse
My screen brightness is at zero without automatic brightness on, and im not using haptic feedback. The phone battery is fine if its just sitting over night, but as soon as I turn on GPS to use maps for 5 mins or to check facebook the battery just drops a % every min. So i guess the phone is fine if Im not using it, but then whats the point?
You're exaggerating.
I've never had a phone battery drop 1% per minute.
Look man, I just spent 5 minutes playing music at max volume, while getting directions to 8 different places in google maps, sent two emails, downloaded a new app from the market, and received one text message.
Battery level after all this? Still at 100%. Does that mean I can do this an unlimited number of times? No, it does not.
Frankly, I don't believe you. I've used this phone, and my previous phone for playing movies at full screen brightness with the audio being played through bluetooth to my stereo headsets. Does it effect the battery status? You bet it does.
Two weeks ago when I last played a snes game on my phone I did so at full screen brightness over bluetooth to a ps3 controller. When I wasn't playing the game I was sending or receiving text messages and had vibrate on. I played super metroid from the very beginning to almost through the end of the game. When I play snes games on my phone I tend to use quick save and quick load and frame skipping very commonly, effectively letting me do things "perfectly" but this is a lot of saving and loading and running the game even faster than how it normally is. I started at 2, and the next thing I knew it was 6:00 and I was supposed to meet a friend for dinner at 6:30.
But for crying out loud you are saying you can drain your battery from 100% to zero in less than 2 hours.
I'm calling shenanigans. I don't think you could even do that intentionally, unless you sat there and forced the phone to vibrate the entire time.
Phone batteries don't last for days like they used to. Batteries have not changed too much in the last few years, but the things phones do, and the screens they do them on certainly has. Stop expecting your phone to last over the entire weekend even when you actually use it.
itsLYNDZ said:
I'd be interested to find one. Being on a stock rom and standard battery, my battery drops about 5% in five mins just checking Facebook. GPS drains it another percent per min it is in use. Half way thru the day my battery is dead. It really sucks having to carry around a charger. I'm also using juice defender and other tweaks I know to save battery
Click to expand...
Click to collapse
Something to keep in mind:
When this phone hits 100%, it STOPS CHARGING. Even plugged in, it will no longer be drawing power into your battery, yet it'll still be running on battery.
If you plug it in when you go to sleep, it finishes charging within 2 hours, then it goes 6 hours idling on battery power but it still says 100% until you disconnect it. Then, while you're using the phone it'll adjust as you use it until it gets to the right level. This is likely what you're seeing.
If I use my phone from the moment it finishes upping to 100%, I get great battery life. I get great battery life in general and have been happy with the phone.
Of course, this might be a totally different issue where you just got a bum battery. But it's something worth considering.
dr4stic said:
Something to keep in mind:
When this phone hits 100%, it STOPS CHARGING. Even plugged in, it will no longer be drawing power into your battery, yet it'll still be running on battery.
Click to expand...
Click to collapse
I don't believe this is true. I hate to constantly be a naysayer in this thread, but this didn't seem logical to me so when my battery went to full, (when the battery is full, unplug charger text showed in the notification bar) I kept it plugged in and set it to play a couple tv episodes on full brightness while I did laundry and made dinner.
Two hours later, I first looked at the battery status while the phone was still plugged in. As expected, it was at 100%.
I unplugged the charger, waited a couple minutes, and checked again.
Still at 100%, which completely makes sense because I've never had a phone that behaved as you've described.
I also would have noticed the battery dying very early, *every single day* because my habit for the last week or so has been to plug the phone in when I go to sleep. I have an app called syncme that pulls files off my computer such as music and video while I'm sleeping, and on average it transfers about 6 gigs of data this way, every single day.
I don't know if you've ever transferred 6 gigs of data on a phone via wifi, but yes, it's not exactly battery power friendly.
My phone's always been 100% battery when I leave for work, just like my last phone was where I also plugged it in at night.
Just saying!
So you guys know.. I have galaxy nexus and the blaze and the batteries are the same so you can order a battery fro the nexus and it will work with the blaze
Sent from my Galaxy Nexus using XDA
radiohead7778580 said:
So you guys know.. I have galaxy nexus and the blaze and the batteries are the same so you can order a battery fro the nexus and it will work with the blaze
Sent from my Galaxy Nexus using XDA
Click to expand...
Click to collapse
Just did an ebay search for Galaxy nexus.. You might need to clarify which model number as there are various Galaxy Nexus batteries listed per Nexus model on ebay...
Galaxy Nexus GSM I9250
Cirkustanz said:
I don't believe this is true. I hate to constantly be a naysayer in this thread, but this didn't seem logical to me so when my battery went to full, (when the battery is full, unplug charger text showed in the notification bar) I kept it plugged in and set it to play a couple tv episodes on full brightness while I did laundry and made dinner.
Click to expand...
Click to collapse
Actually he is pretty close to the way it operates. The way your phone gauges battery life is similar to your car with gas. When the meter reads 100%, it is really more like 98%. When the battery reaches true 100%, the phone will stop charging the battery (but will run off of USB power, not the battery). They do this to account for small variations in the many variables that affect a battery's performance (like temperature). Likewise, your phone will read 0% before the battery is truly completely drained (this is also to protect the battery - they don't like being charged to 100%, nor drained to 0%).
This could also greatly affect your previous test on battery performance. To get a more accurate result, let the phone drain to about 60%, then test the time to drop a percentage point.
What you are talking about is a suggestion that the battery meter doesn't necessarily update it's strength meter all of the time, and you even say that the phone runs off the plugged in power at this point.....
mdneilson said:
Actually he is pretty close to the way it operates. The way your phone gauges battery life is similar to your car with gas. When the meter reads 100%, it is really more like 98%. When the battery reaches true 100%, the phone will stop charging the battery (but will run off of USB power, not the battery). They do this to account for small variations in the many variables that affect a battery's performance (like temperature). Likewise, your phone will read 0% before the battery is truly completely drained (this is also to protect the battery - they don't like being charged to 100%, nor drained to 0%).
This could also greatly affect your previous test on battery performance. To get a more accurate result, let the phone drain to about 60%, then test the time to drop a percentage point.
Click to expand...
Click to collapse
This is what the person said.
When this phone hits 100%, it STOPS CHARGING. Even plugged in, it will no longer be drawing power into your battery, yet it'll still be running on battery.
Click to expand...
Click to collapse
His entire post is incorrect, and has nothing to do with what you are talking about either.
Cirkustanz said:
What you are talking about is a suggestion that the battery meter doesn't necessarily update it's strength meter all of the time, and you even say that the phone runs off the plugged in power at this point.....
This is what the person said.
His entire post is incorrect, and has nothing to do with what you are talking about either.
Click to expand...
Click to collapse
Before you discredit anyones post, you should understand how many battery chargers work, and the importance of them shutting off following a complete charge. Here is a quote regarding Li-ion battery maintenance :
Li-ion cannot absorb overcharge, and when fully charged the charge current must be cut off. A continuous trickle charge would cause plating of metallic lithium, and this could compromise safety. To minimize stress, keep the lithium-ion battery at the 4.20V/cell peak voltage as short a time as possible."
Many chargers have this feature built in to avoid any overheating and/or damage to the cell. I'm not saying this is the case because I have not tested whether the battery charging circuit in this particular phone, or it's charger operate, but I will say that this has been the case in MANY of it predecessors.
That being said, I think an extended battery would be a welcome addition to the options of this phone. Mine too only lasts a day at it's best. Perhaps not 1% a minute...but then again who knows?
A theoretical question... IF the Lithium-ion battery in any modern phone or tablet etc was to completely die, would it still work plugged in?
But more importantly I want to know IF the battery in my phone was being completely dead right now, because of wear and tear and charging it alot, could I still use my phone with a micro USB powerpack/battery bank constantly connected to it?
Thanks
simonwela said:
A theoretical question... IF the Lithium-ion battery in any modern phone or tablet etc was to completely die, would it still work plugged in?
But more importantly I want to know IF the battery in my phone was being completely dead right now, because of wear and tear and charging it alot, could I still use my phone with a micro USB powerpack/battery bank constantly connected to it?
Thanks
Click to expand...
Click to collapse
generally speaking, no and no.
bweN diorD said:
generally speaking, no and no.
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Click to collapse
Alright. But I guess if there's like 10% of the capacity of the battery left, like a couple years from now, it could work maybe? If you have a phone with a non-changeable battery.
It is possible bro
Like the above said, if the battery is not completely dead and has some capacity left, it will work. But it case the battery is completely dead it will not.
simonwela said:
Alright. But I guess if there's like 10% of the capacity of the battery left, like a couple years from now, it could work maybe? If you have a phone with a non-changeable battery.
Click to expand...
Click to collapse
yes, if there is any battery left it will work, but you asked if it were possible if the battery was "completely dead", in which case my answer of no is accurate.
---------- Post added at 08:38 AM ---------- Previous post was at 08:37 AM ----------
droid_god said:
It is possible bro
Click to expand...
Click to collapse
if the battery is "completely dead", no, its not.
If battery is 100% dead then.
Grab a charger and multiply the current written on it with 100.
If the value is somewatn very close ro the battery mAh then that charget could so the trick.
And charger above 1.8A is really hard to get. So to charge bayteries more than 2000mAh can be hard.
Who knows what will work try out the method with 2800mAh . may be it works
droid_god said:
If battery is 100% dead then.
Grab a charger and multiply the current written on it with 100.
If the value is somewatn very close ro the battery mAh then that charget could so the trick.
And charger above 1.8A is really hard to get. So to charge bayteries more than 2000mAh can be hard.
Who knows what will work try out the method with 2800mAh . may be it works
Click to expand...
Click to collapse
your help is appreciated, but you shouldnt comment on such things you know nothing about.
i can get chargers over 1.8a all day no problem.
im not sure what you are trying to explain with all the charger vs battery stuff, but there was no question of an adequate charger.
you seem to be suggesting charging at a higher rate will some how revive a dead battery.
thats just not true. if the battery is dead from reaching the end of its life span as the op suggests in his query, it can not be revived.
further more, you could use a 1,000,000mah charger and it would do or fix nothing.
as long as the charger used can output the amount required by the phone, it doesnt matter how big the charger is beyond that.
there is a charging circuit in all devices that regulate the rate the batteries charge to prevent damage to the battery or device.
chargers dont push out the a or ma listed on them, that value of amperage is the maximum that can be pulled from it.
bweN diorD said:
yes, if there is any battery left it will work, but you asked if it were possible if the battery was "completely dead", in which case my answer of no is accurate.
Click to expand...
Click to collapse
I understand. Thanks for the answer!
I have an old laptop (like 10 years old), that has a completely dead battery and won't boot if it isn't plugged in, but it does work when it's plugged in, so I thought that maybe it would be the same thing here, but of course not, it makes sense that it's different.
But even with a new, modern phone, I guess it would be hard to completely kill the battery, even when charging it alot?
I mean, even if I would charge it 2 times everyday for 5 years, maybe it would still have some percent left of it's battery capacity, maybe 10% or something, and then it would work.
simonwela said:
I understand. Thanks for the answer!
I have an old laptop (like 10 years old), that has a completely dead battery and won't boot if it isn't plugged in, but it does work when it's plugged in, so I thought that maybe it would be the same thing here, but of course not, it makes sense that it's different.
But even with a new, modern phone, I guess it would be hard to completely kill the battery, even when charging it alot?
I mean, even if I would charge it 2 times everyday for 5 years, maybe it would still have some percent left of it's battery capacity, maybe 10% or something, and then it would work.
Click to expand...
Click to collapse
its fairly rare to see a battery go completely dead from just being worn out. usually users will replace it when it gets to some point of limited usefulness.
sure some times they die from defect, and some times they die from users running down until 0 and the phone shuts off.
the latter trips a safety in the battery and makes it all but useless. this can be fixed, but thats another discussion.
i dont know how laptop batteries work with respect to charge.
phones though, i have seen from experience. when the battery is completely dead the phone will not start even plugged in, until it takes a small amount of charge, to be able to sustain the device on the battery while charging.
as long as your battery can sustain this minimal amount of charge, it should work while plugged in.
there really is no way to tell if, or how long, it will be able to maintain this low charge state. any stress on the battery from heavy use is likely to cause it to shut off until it reaches the minimum threshold again.
also when the battery is this weak, its possible for some sort of internal fault, resulting in the loss of ability to accept even the smallest of charge.
if your battery gets to this weak state, its best to just get a new one. even if its a cheap knock off that doesnt work as good as the old one used to. at least you will have something to work with, and not be worried from day to day if it will work or not.
i hope this clears things up for you
bweN diorD said:
its fairly rare to see a battery go completely dead from just being worn out. usually users will replace it when it gets to some point of limited usefulness.
sure some times they die from defect, and some times they die from users running down until 0 and the phone shuts off.
the latter trips a safety in the battery and makes it all but useless. this can be fixed, but thats another discussion.
Click to expand...
Click to collapse
Oh, that's good to know.
And I'm not so worried about that, I never let my phone drop below 10% and most often I charge it when it hits 20% and charge it up to 90%. I believe that's the best for the battery.
I am kinda regretting now that I bought a Xperia Z5C though, I don't like that the battery isn't changeable. But it's a great phone other than that, so I think it will be okay. And the battery is quite high capacity so I hope that it will work fine for at least 3 years, even if I charge it daily.
ETA: Interestingly, I had a Xperia Z1 before this phone, and I had the Z1 for a litte more than 2 years, and charged it almost everyday, and the battery on it was fine, or more than that, it was Good, I was getting 4-5 hours screen time on a charge just a month ago.. So??? I shouldn't be worrying about this anymore and instead enjoy my new phone
bweN diorD said:
i hope this clears things up for you
Click to expand...
Click to collapse
It did! Thank you.
simonwela said:
Oh, that's good to know.
And I'm not so worried about that, I never let my phone drop below 10% and most often I charge it when it hits 20% and charge it up to 90%. I believe that's the best for the battery.
I am kinda regretting now that I bought a Xperia Z5C though, I don't like that the battery isn't changeable. But it's a great phone other than that, so I think it will be okay. And the battery is quite high capacity so I hope that it will work fine for at least 3 years, even if I charge it daily.
ETA: Interestingly, I had a Xperia Z1 before this phone, and I had the Z1 for a litte more than 2 years, and charged it almost everyday, and the battery on it was fine, or more than that, it was Good, I was getting 4-5 hours screen time on a charge just a month ago.. So??? I shouldn't be worrying about this anymore and instead enjoy my new phone
It did! Thank you.
Click to expand...
Click to collapse
many users run the phone to 0 often without issue, but its really a horrible thing to do. there are many documented cases of it not turning on any more, however likely small compared to the amount of times its done. i was just making the facts known that the safety is there, and there is a risk of tripping it.
the problem would be compounded on a sealed phone, as the only fix requires you to take the battery out.
your charging cycle is very good for getting the max life from your battery :good: not too low and not too high.
many will argue this, and claim the benefit is very small, but according to the experts at battery university, not too low and not too high is the best way to get max life from these types of batteries. it keeps the stress levels while charging out of the highest ranges.
simonwela said:
I understand. Thanks for the answer!
I have an old laptop (like 10 years old), that has a completely dead battery and won't boot if it isn't plugged in, but it does work when it's plugged in, so I thought that maybe it would be the same thing here, but of course not, it makes sense that it's different.
But even with a new, modern phone, I guess it would be hard to completely kill the battery, even when charging it alot?
I mean, even if I would charge it 2 times everyday for 5 years, maybe it would still have some percent left of it's battery capacity, maybe 10% or something, and then it would work.
Click to expand...
Click to collapse
Laptop chargers are a bit different from the android chargers.
Laptop chargers are designed to handel heavy charges which charges the battery at at its rated voltage. Like a 12volt laptop charger will charge a 12volt battery. Thats why with battery dead charger can handel all the work.
Android is a bit different.
Its chargers are rated of higher voltagea than battery.
Thats a good thing because at higher voltages we requir less ampere of current per hour to charge it.
I mean to say in previous post that if you grab a charger for your device just pullout the battery and use any other device battery for first boot. And when it start booting then you can just remove that battery and device will run on chrger.
droid_god said:
Laptop chargers are a bit different from the android chargers.
Laptop chargers are designed to handel heavy charges which charges the battery at at its rated voltage. Like a 12volt laptop charger will charge a 12volt battery. Thats why with battery dead charger can handel all the work.
Android is a bit different.
Its chargers are rated of higher voltagea than battery.
Thats a good thing because at higher voltages we requir less ampere of current per hour to charge it.
I mean to say in previous post that if you grab a charger for your device just pullout the battery and use any other device battery for first boot. And when it start booting then you can just remove that battery and device will run on chrger.
Click to expand...
Click to collapse
all batteries charge at a higher rate than they are rated at, phone, laptop, car, doesnt matter.
if they didnt, they would take a very long time to reach full charge, and could only do so if not being used.
i would like to see some proof that a phone will stay on booted, with no battery. post some links for me to review please.
I have done it i will send you a video ok
What about cpuZ?!
SofianeBlade said:
What about cpuZ?!
Click to expand...
Click to collapse
"what about" you read the forum rules, particularly the part that says not to spam threads with off topic posts.