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I know you want the phone's battery to fully charge and fully drain, but which do I start with? It comes with a partial charge... so should I charge it first? Or drain it first?
Thanks.
thehyecircus said:
I know you want the phone's battery to fully charge and fully drain, but which do I start with? It comes with a partial charge... so should I charge it first? Or drain it first?
Thanks.
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i always charge my phone before using it for the first time.. then let it drain completely then charge it completely. i try to do this a couple times. So far it's worked out for me on all my electronic devices... never had battery problems.
Please do not ruin your batteries as far as i know Lithium-Ion batteries don't need to be drained and charged.
Go down to the second bulleted list, the third bullet
I have never ran my battery completely down, and my Kaiser will last for a full day, and i use it a fair amount.
Wow. Thats good to know.
from my understanding it's mandatory for NiCad batteries to be fully drained but Li-Ion are not. :-D i don't want anyone to have a dead battery :-D
mikemorris said:
Please do not ruin your batteries as far as i know Lithium-Ion batteries don't need to be drained and charged.
Go down to the second bulleted list, the third bullet
I have never ran my battery completely down, and my Kaiser will last for a full day, and i use it a fair amount.
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LMAO.
From the above link:
"-If you completely discharge a lithium-ion battery, it is ruined.
-There is a small chance that, if a lithium-ion battery pack fails, it will burst into flame."
They should be a bit more specific. Lots of people probably think there battery is "completely discharged" when it won't turn on there phone.
Be sure you put it on the charger when you get the low battery notification, or else it may burst into flames!
thehyecircus said:
I know you want the phone's battery to fully charge and fully drain, but which do I start with? It comes with a partial charge... so should I charge it first? Or drain it first?
Thanks.
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Click to collapse
If you want to prolong the life of your Lithium-Ion battery, DO NOT let it fully drain. This will decrease your battery's overall charge capacity and you'll find yourself having to recharge more frequently. I'm an electrical engineer by education and profession, so here are a few quick points:
1) You do not have to power cycle a Li-Ion battery. Charge it when it drops to about 70% and typically you don't want it to drop below 50%; extremely low voltage levels could render Li-Ion batteries useless because of the internal circuitry.
2) Charge slowly, with a low current, if possible and avoid rapid chargers.
3) Don't leave your battery charging, unnecessarily, when it is already full--this will also diminish it's maximum potential more rapidly. Only charge it when it needs it and unplug it when at 100%.
4) Keep it away from hot environments (e.g. don't leave it sitting in a black car on a hot Summer day, etc.). Heat kills batteries, along with all electronics.
Battery University is a good resource if you're looking for more information on how to take care of your batteries or just want to understand how they work. Hope this helps.
weaselcossey said:
LMAO.
From the above link:
"-If you completely discharge a lithium-ion battery, it is ruined.
-There is a small chance that, if a lithium-ion battery pack fails, it will burst into flame."
They should be a bit more specific. Lots of people probably think there battery is "completely discharged" when it won't turn on there phone.
Be sure you put it on the charger when you get the low battery notification, or else it may burst into flames!
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Click to collapse
It's actually true that a heavily depleted Li-Ion battery may burst into flames. Li-Ion batteries have a much higher energy density than Ni-Cad and NiMH batteries, and a if they lose too much of their charge, their internal circuitry may become damaged. They should have been more specific in that link, but you should definitely be cautious with Li-Ion battery handling. If it wasn't for the voltage/current regulating circuitry protecting the cells of Li-Ion batteries, they could very well be considered bombs.
So I usually plug my phone in when I come home and unplug it when I leave. Thats bad for my battery? How do I stop it when it reaches 100%?
Man oh man have I been misinformed.
I have ALWAYS heard to drain it fully, then charge it fully...
Fu*kin sh*t!!! I've been destroying li-ion batteries for as long as I've been using them.
So, once you've drained it once it's bad for good, or what?
thehyecircus said:
So I usually plug my phone in when I come home and unplug it when I leave. Thats bad for my battery? How do I stop it when it reaches 100%?
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That's potentially bad for your battery. The protection circuitry in Li-Ion batteries these days are refined enough to prevent overcharging, but leaving it plugged in can still make it build up heat, which I mentioned won't help you. For the average cell phone battery, the typical charge time is about 3 hours for a full cycle. So that being the case, my best advice for you is to check your phone's charge indicator after a few hours and unplug it if it shows it's at 100%.
Lithium-ion battery lifespans are inherently limited by their manufactured date and by the finite number of charge cycles (one charge cycle is considered the charging from 0% to 100%). So if you deplete your battery by 25% each day and recharge to 100% each night, it would take 4 iterations of this process to complete one cycle. Over the course of using your battery you can expect the off-the-shelf maximum potential to decrease by about 20% each year.
r603 said:
Man oh man have I been misinformed.
I have ALWAYS heard to drain it fully, then charge it fully...
Fu*kin sh*t!!! I've been destroying li-ion batteries for as long as I've been using them.
So, once you've drained it once it's bad for good, or what?
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Power cycling by fully draining is good practice for NiMH batteries, since they have different properties. But again, for Li-Ion batteries you should avoid doing this. One full depletion may not destroy it necessarily, but there's a good chance that it will have become damaged. This depends on the battery manufacturer's build quality and specifications. You can pretty much be guaranteed a permanently reduced total capacity with a complete discharge though, sorry to say But I guess now you know for future practice to steer clear of the full drain.
orlandojumpoff said:
i always charge my phone before using it for the first time.. then let it drain completely then charge it completely. i try to do this a couple times. So far it's worked out for me on all my electronic devices... never had battery problems.
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Just FYI, most batteries that are included with new cell phones are pre-charged to approximately 70% in order to maintain a charge above the protection circuit breakdown voltage. The end-user shouldn't have any problems just using the battery out of the box, in this state, but it's a good idea to charge the phone before the first use, just to make sure you're starting from a good reference voltage. Lots of manufacturers include charging recommendations with their lithium-ion batteries stating something along the line that the first charge should be 8+ hours. This is excessive and unnecessary. They probably had some inventory of those notes for some older battery technology or carrying on an obsolete heritage practice. All you have to do is let the phone charge till the full-charge indicator lights up.
Power cycling is helpful from time to time to calibrate the sensor (which is different from the reason you want to do this for nicd)
For everyday use, just charge it whenever you can
It's batteries these days are smart enough to not recharge when already full
I'd carry a retractable mini usb cable to charge it frequently (this will help reduce # of cycles used)
Honestly, I think one of the biggest advantage of having a user-replaceable battery is the fact that you could use the phone without worrying too much about all this
I go by the "I'll put my convenience over the battery's" mentality
Dramacydle said:
Just FYI, most batteries that are included with new cell phones are pre-charged to approximately 70% in order to maintain a charge above the protection circuit breakdown voltage. The end-user shouldn't have any problems just using the battery out of the box, in this state, but it's a good idea to charge the phone before the first use, just to make sure you're starting from a good reference voltage. Lots of manufacturers include charging recommendations with their lithium-ion batteries stating something along the line that the first charge should be 8+ hours. This is excessive and unnecessary. They probably had some inventory of those notes for some older battery technology or carrying on an obsolete heritage practice. All you have to do is let the phone charge till the full-charge indicator lights up.
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The initial overcharge and draining is to compensate for the meter's accuracy (or the lack of it) when a battery is first installed
It's entirely possible for the device to report 0% when the battery is actually alive and well
For example, IBM (now Lenovo) has a little software for their laptops that alerts the user when such power cycling is helpful, and so far, I've benefited from it
We should get such software on Windows Mobile!
How much do you think batteries for this phone will cost? And I'm assuming my local AT&T stores will carry them.
Dramacydle said:
3) Don't leave your battery charging, unnecessarily, when it is already full--this will also diminish it's maximum potential more rapidly. Only charge it when it needs it and unplug it when at 100%.
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Sorry, but as far as I know if the battery meter is 100% the device will prevent overcharging. If you let the device charging overnight in the morning the device will have a normal temperature (it's not getting hot as you said in other post), thus the device doesn't get more that it needs.
thehyecircus said:
We should get such software on Windows Mobile!
How much do you think batteries for this phone will cost? And I'm assuming my local AT&T stores will carry them.
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I can't vouche for the quality, but batteries out of Hong Kong are available at 2 for just under $20 (including shipping) on eBay.
http://cgi.ebay.com/Battery-x2-for-...14&_trkparms=72:1205|66:2|65:12|39:1|240:1318
thehyecircus said:
How much do you think batteries for this phone will cost? And I'm assuming my local AT&T stores will carry them.
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According to the leaked documents from a few days ago, the retail price for the standard battery via AT&T will be $42.00 and $65.00 for the extended battery.
Obviously you can do much better than that with non-OEM products, as noted elsewhere in this thread.
weaselcossey said:
LMAO.
From the above link:
"-If you completely discharge a lithium-ion battery, it is ruined.
-There is a small chance that, if a lithium-ion battery pack fails, it will burst into flame."
They should be a bit more specific. Lots of people probably think there battery is "completely discharged" when it won't turn on there phone.
Be sure you put it on the charger when you get the low battery notification, or else it may burst into flames!
Click to expand...
Click to collapse
It's actually true that a heavily depleted Li-Ion battery may burst into flames. Li-Ion batteries have a much higher energy density than Ni-Cad and NiMH batteries, and a if they lose too much of their charge, their internal circuitry may become damaged. They should have been more specific in that link, but you should definitely be cautious with Li-Ion battery handling. If it wasn't for the voltage/current regulating circuitry protecting the cells of Li-Ion batteries, they could very well be considered bombs.
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I understand, but I think you would agree that the general public probably doesn't understand what "completely discharged" or "heavily depleted" battery really means when we're talking about cell phone batteries becoming flaming bombs.
I just thought there wording was pretty funny.
Strangely I found that after a full charge at night, if I continue to charge via usb either in my car or on my computer for several hours, the battery will last all day with only very little loss...like 10%.
This also works if I hook my phone to the computer when I get home around 6pm and then hook up to wall plug by my bed (I use it for my alarm) it will also work!
Otherwise with just the single night charge (7hrs) it only will last about 12hrs.
I think the Fuze's circuitry shuts off charging before it is fully charged. I'm ordering a seperate battery charger (I have 2 HTC batteries) when the charger comes in I will see if it does a better job than the phone.
Anyone else have similar stories?
I have been studying and researching about batteries to find out how treat them. Even thought I have found many different opinions I have learnt something. However I still have some questions on which I haven't got answer.
Currently I own 2types of rechargeable batteries(actually 3 but those NiCD's I have are useless since they are 600mAh), new (hybrid)NiMH SANYO eneloop AA and AAA series that I bought recently and other Li-ion battery which is in my phone(950mAh).
So what I know about those new (hybrid)NiMH SANYO eneloop batteries is that they are ready to use batteries which means I can directly put them into device when I bough them without needing to charge them before, but I don't know how should I care about them later. Should I charge them when capacity reaches 10% or less or should I charge them more frequently(like Li-ion), also does these batteries have no, small or full memory effect(remember those are new hybrid NiMH series)?
OK now Li-ion batteries I know they have no memory effect and that it is better to charge them more frequently and that I should fully charge and discharge them every 30 days or so. However I don't know what to do with them when I buy them brand new(separately or with new phone) should I first charge them to full and than use the phone/device or should I first turn on device and discharge battery and then fully charge battery to reset the digital circuit of a 'smart' battery to improve the state-of-charge estimation?
Anybody can help?
Hi guys!
I have a question. I am always on the go and am trying hard to ensure that I have enough battery to last the whole day or at least in places I don't have chargers.
So, is it okay to always charge Android phones & tablets whenever I go or is there a 'guideline' on charging only when hit 20, 30, 50% (for example) to preserve battery life?
i use my tablet alot and i charge it when it gets to 1% i can use it for almost 2 days b4 i charge it i feel like it saves your battery not to charge it so much i could be wrong
perhaps it is okay
It doesn't matter, battery wont overcharge and the battery in all new devices don't have memory issues anymore.
One tip I would suggest is not to completely drain your battery everytime before charging.
Sent from my Desire HD using Tapatalk
The latest smartphones batteries don't suffer of memory issues any longer,so you're free to charge them whenever you need or you can,the only advice IMHO is:if you flash kernel,rom, or anything else on your phone be sure to calibrate your battery after,you can do it in RECOVERY or downloading application from the market ie: battery calibrator/calibration (I don't remember)
bye
You may reduce the battery's long-term lifespan. Batteries last longer if you can keep them between 20-80% charge. Also, they don't like being hot.
http://batteryuniversity.com/learn/article/do_and_dont_battery_table
i was wondering the same thing because I have that same issue of being weird about a full charge on my phones. have seen mixed comments on the matter.
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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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.
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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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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.
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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?
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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-
As you all probably know Li-ion batteries do lose some capacity over time. And the more charge/discharge cycles they go through, the more they lose. However, this loss of battery health or longevity can be lessened by reducing the number of full charge/discharge cycles, by not charging all the way up, and also by not maintaining the battery at full charge for long periods of time.
For example, my Lenovo laptop has some smart charging software that only charges the battery to 60%. As I am normally using the laptop with the AC adapter, this helps preserve the battery, as keeping it up at 100% isn't the best thing for overall longevity. But if I know that I will be away from AC power for a while, I can switch the mode and it will charge all the way up to give me full capacity.
My question is this: does any such software exist for Andriod? I've looked around but not found anything. I am a fairly light user, and most of the time I am near AC power, so I wouldn't mind having my phone battery only charge to 60% percent or so. Ideally the software would have dual modes like on my laptop, one for preserving battery lifespan, and one to give full capacity on the days that I need it.
Any suggestions? Or does this not exist? Or are there hardware limitations of which I am not aware?
Phones tend to have longer battery life then laptops so as long as you have apps like DS battery saver, Greenify and Carat among other apps you will be able to get the most out of your phone.
jmxc23 said:
Phones tend to have longer battery life then laptops so as long as you have apps like DS battery saver, Greenify and Carat among other apps you will be able to get the most out of your phone.
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I think you misundetstood my question. I'm not asking about battery life (i.e. how much talk time or screen on time per single charge). I'm asking about battery health or life SPAN (i.e. I get 4 hours of screen on time now, but what about a year from now? Will I only get 2 hours because the battery health has declined due to over 300 charge/discharge cycles?).
All batteries lose capacity over time. Is there software that helps prevent this by limiting charge?
No there isn't. I don't see the point of having that kind of software on a phone as by the time that happens you will be eligible for an upgrade.
We had what you're talking about for the gnex. Called battery life extender. I don't know if this is available on the sg3 kernel wise.
Sent from my SCH-I535 using xda app-developers app
Thanks for the replies!
Battery technology may be good enough at this point to have good health until the next upgrade, so you make a good point. Personally, I don't care about the latest and greatest (and I'm a broke student) so I only upgrade when I absolutely have to. I'd probably still have my Droid X if it hadn't died.
And thanks for the Gnex info. I've heard they are notorious for poor battery performance. Seems like there's nothing for the GS3, but it's good to know that it is a possibility on at least some phones and that the devs have worked on it.
vondiesel said:
Hi all-
As you all probably know Li-ion batteries do lose some capacity over time. And the more charge/discharge cycles they go through, the more they lose. However, this loss of battery health or longevity can be lessened by reducing the number of full charge/discharge cycles, by not charging all the way up, and also by not maintaining the battery at full charge for long periods of time.
For example, my Lenovo laptop has some smart charging software that only charges the battery to 60%. As I am normally using the laptop with the AC adapter, this helps preserve the battery, as keeping it up at 100% isn't the best thing for overall longevity. But if I know that I will be away from AC power for a while, I can switch the mode and it will charge all the way up to give me full capacity.
My question is this: does any such software exist for Andriod? I've looked around but not found anything. I am a fairly light user, and most of the time I am near AC power, so I wouldn't mind having my phone battery only charge to 60% percent or so. Ideally the software would have dual modes like on my laptop, one for preserving battery lifespan, and one to give full capacity on the days that I need it.
Any suggestions? Or does this not exist? Or are there hardware limitations of which I am not aware?
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I am always surprised at how few people realise that LiON is different from NiCAD. Im glad to see at least a few do.:good: