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Hello everybody, I own an HD2 that is alway connected to a table cradle (connected via USB to a PC) during the day when I'm in Office. I wonder if exist an app that allows to manage the battery charging: I explain...I'd like that the HD2 AUTOMATICALLY "turns off" the charging when the battery is fully charged at 100% and automatically "turns it on" again when the battery charge reaches a given threshold (60-50-40% or something like that). If you own an IBM/Lenovo Laptop I'd like something like the power managment app. Of course the data syncronization HAVE ALWAYS TO STAY TURNED ON regardless the chargin of the battery.
Does it exist somehing like that?
Thanks and regard
Andrea
There is a setting that allows for the battery not to recharge when connected to a PC. Other than that, I completely fail to see what would be the purpose of what you are asking.
pedmond said:
There is a setting that allows for the battery not to recharge when connected to a PC. Other than that, I completely fail to see what would be the purpose of what you are asking.
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thanks for your answer! I already know the setting you're talking about, but as I told early I'd like something that manages this setting automatically. The purpose is to avoid the decreasing of the battery lifetime caused by letting the battery itself "always" connected to a charging source. For example in the Laptop PCs it's better to unplug the battery when the laptop is conncted to an external power source/charging unit...
Thanks
Andrea
the dragonlord said:
thanks for your answer! I already know the setting you're talking about, but as I told early I'd like something that manages this setting automatically. The purpose is to avoid the decreasing of the battery lifetime caused by letting the battery itself "always" connected to a charging source. For example in the Laptop PCs it's better to unplug the battery when the laptop is conncted to an external power source/charging unit...
Thanks
Andrea
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Most modern devices (and, I believe the HD2) actually disconnect charging when the battery is at 100%. The green light doesn't mean that your HD2 is still charging, but that it's at 100%. Therefore I don't believe you actually shorten the battery life by keeping it plugged in.
pedmond said:
Most modern devices (and, I believe the HD2) actually disconnect charging when the battery is at 100%.
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I did believe it too but I have an app wich monitors the battery temperature and still when the battery charge is 100% its temperature remains "high" (35 grades degrees) as long as I keep the device plugged to the cradle. I see the same temperature value when the battery is actually charging...this fact have made me change my mind about the fact that the HD2 disconnect charghing when 100% is reached...
Its not the battery which is getting hot, it's the phone.
If I had a lithium-poly/ion battery that was reaching 35C I'd be very worried!
If your app is showing the battery at 35C, turn the phone off, remove the battery and it should be cool to the touch.
If it's hot then you have a problem.
xaccers said:
Its not the battery which is getting hot, it's the phone.
If I had a lithium-poly/ion battery that was reaching 35C I'd be very worried!
If your app is showing the battery at 35C, turn the phone off, remove the battery and it should be cool to the touch.
If it's hot then you have a problem.
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you're right, it's the device, not the battery....I'll throw away the temp app!!!
the dragonlord said:
you're right, it's the device, not the battery....I'll throw away the temp app!!!
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Heat will decrease the life expectancy of the battery, but so will deep charging rather than top ups, remember with non-NiCd batteries you don't get memory effect, so the only reason to do a deep charge is to recalibrate the software battery meter.
Of course leaving the battery sitting on a shelf will also degrade it's capacity, they start to degrade as soon as they're produced, so buying a spare and not using it until your original battery dies is not a good idea, better to buy a replacement battery when the original starts failing.
HTC's batteries actually seem very reasonably priced too which is refreshing.
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 there, I own a Nexus 5 recently. The phone arrives soon and by everyone is know that battery comes with some charge. Should I leave discharge the battery complete and then charge back or how is this procedure in order to not kill the battery and gain a good calibration?
I have an extra question, is there any problem for battery if I leave the USB cable connected all the time even if battery is full?
Sent from my Galaxy Nexus using Tapatalk
Just charge it, don't fully discharge it and use it normally. You don't need to worry about calibrating
jd1639 said:
Just charge it, don't fully discharge it and use it normally. You don't need to worry about calibrating
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You can use as normal..I normally drain it.
And in general, when dealing with lithium ion batteries, leaving them plugged in excessively when fully charged kills the battery in the long run
teh roxxorz said:
You can use as normal..I normally drain it.
And in general, when dealing with lithium ion batteries, leaving them plugged in excessively when fully charged kills the battery in the long run
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Bad form on both counts. Li-ON batteries shouldn't be deep discharged. They have built in circuitry to prevent ACTUAL 0% (they shut down before getting to real 0%) but still not good to run it down to 5% all the time.
Unless you have some crappy charger & phone, the IC in the phone will instruct the charger to kill power when it's full so leaving it plugged in all the time wont make a difference - this is for a phone.
This is not the same and not for the same reasons in laptops. Reason it's not so good is if your laptop has crappy cooling system or like some people need it on "Performance" all the time because they don't want their CPUs "slowing them down". As a result of the heat from the system now going into idle state, the battery lifespan degrades. This is where your "plugged in all the time" stance comes from but it's not valid with all applications.
shotta35 said:
Bad form on both counts. Li-ON batteries shouldn't be deep discharged. They have built in circuitry to prevent ACTUAL 0% (they shut down before getting to real 0%) but still not good to run it down to 5% all the time.
Unless you have some crappy charger & phone, the IC in the phone will instruct the charger to kill power when it's full so leaving it plugged in all the time wont make a difference - this is for a phone.
This is not the same and not for the same reasons in laptops. Reason it's not so good is if your laptop has crappy cooling system or like some people need it on "Performance" all the time because they don't want their CPUs "slowing them down". As a result of the heat from the system now going into idle state, the battery lifespan degrades. This is where your "plugged in all the time" stance comes from but it's not valid with all applications.
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Well very true, and I have an electronics background, so I know what works and what's alright. Discharging it is fine.
Thanks to all of yours I'll learn something new and now I know how to handle battery lifetime for best
Sent from my Galaxy Nexus using Tapatalk
Actually Shotta35 is 100% correct with regards to deep discharges and li-ion batteries. There is a write up I did in 2012 about battery care from a hardware prospective in my sig, and it has nothing to do with battery memory. teh roxxorz is also right about leaving batteries plugged in for extended periods of time. More energy = more heat = shorter lifesan.
Are all smartphone brands and types using the power breaker feature when the battery is full?
muwlan said:
Are all smartphone brands and types using the power breaker feature when the battery is full?
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The most smartphones have lithium-ion battery in it. Lithium ion battery stops the charging when it reaches to 100% and starts when it falls to 99%. The OS also managing the charging current and protects it from overcharging.
Thank you very much for the information, so I didn't hesitate anymore, because sometimes I filled my cellphone all night.
usually this should not care your phone, as you could already read here - nevertheless some "pro's" still recommend not to charge it all night long. And with modern chargers and phones where you get a fully charge device in ~2 hours this should not matter any more...
In my S9+ I have the option to Disable fast charging.I have enough time to charge & can enable it Only When I need it.If Not Does it have adverse affect on battery?In iOS 13 Apple has further gave the option for slow charging.Also I find That in PES 2019 when I flick on screen to pass to a player,It sometimes misses.Is there a way to increase touch sensitivity like in S9+
I switched from Xs Max & touch was very sensitive
Can I use apple 5W charger to charge slow or will it have an adverse effect?
Bump
Use a different charge block if you want slower charging. Are you using an aftermarket screen protector? May i ask why you wan to disable warp?
equlizer said:
Use a different charge block if you want slower charging. Are you using an aftermarket screen protector? May i ask why you wan to disable warp?
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No I'm using it with the screen protector that came pre installed.I want to use this phone for long time & don't want any adverse affect due to warp charge
RISHI RAJ said:
In my S9+ I have the option to Disable fast charging.I have enough time to charge & can enable it Only When I need it.If Not Does it have adverse affect on battery?In iOS 13 Apple has further gave the option for slow charging.Also I find That in PES 2019 when I flick on screen to pass to a player,It sometimes misses.Is there a way to increase touch sensitivity like in S9+
I switched from Xs Max & touch was very sensitive
Can I use apple 5W charger to charge slow or will it have an adverse effect?
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Click to collapse
One good thing about the Warp Charger is that it converts the energy in the brick itself instead of the device (in case of huawei , which does this in the device itself). So yeah warp charge isn't harmful in long term.
https://www.youtube.com/watch?v=uHNG-UYSwSo
daniel from xda explained this here.
This is what you want for preserving battery. Lithium batteries hate overcharging and constant recharging.
https://play.google.com/store/apps/details?id=com.slash.batterychargelimit
larsdennert said:
This is what you want for preserving battery. Lithium batteries hate overcharging and constant recharging.
https://play.google.com/store/apps/details?id=com.slash.batterychargelimit
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This is an incorrect statement. Li-Ion batteries last longer the more often you charge them. Charging from 0-25% you will get 250-350 charge cycles, 25-50% you should get 500-600 charge cycles, 50-75% up to 800-900 charge cycles and charging routinely at 75% or higher you can get as many as 1000+ charge cycles. This is before you see significant reduction in battery capacity.
What Li-Ion batteries hate is a deep depth of discharge . It is harmful to let a Li-Ion battery to drain to under 10% battery. This is from BatteryUniveristy.com
The other statement is correct, the brick is where all the real circuitry is and protects the battery from over heating. It's the heat that kills batteries.
I meant continual charging while full. IE 99% to 100% continually. Over discharging and heat kill them too. Leaving them partially charged affords them the best life. Tesla's also do this not charging to 100% daily for longer battery life.
kirito05 said:
One good thing about the Warp Charger is that it converts the energy in the brick itself instead of the device (in case of huawei , which does this in the device itself). So yeah warp charge isn't harmful in long term.
https://www.youtube.com/watch?v=uHNG-UYSwSo
daniel from xda explained this here.
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Click to collapse
Charging at 1.25C is commonly accepted as "no good" for batteries.
Folks worry too much about long term battery life. I used my 3T for over 2 years with the stock Dash charger. Never seemed to lose any significant battery performance compared to when it was brand new.
After 8 years of using phones with 10 watts or less, even 5v 0.7a chargers, those phones got horrible battery life after a year or so, then my old Op5t and 6 of my wife are both holding strong after a solid year of use with 15W charger. Don't listen to Apple much, they don't care about lying their consumer to then prove themselves wrong a few year later. iP10XSM nearly 4 hours to charge, supports fast charging yet you have to buy the charger. Then next iPhone may come with fast charger included, not before some profit from chargers.
larsdennert said:
I meant continual charging while full. IE 99% to 100% continually. Over discharging and heat kill them too. Leaving them partially charged affords them the best life. Tesla's also do this not charging to 100% daily for longer battery life.
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Dude, after about 85%, the charger will trickle charger. Nowadays phone batteries are very smart, they don't overcharge. When it reaches 100%, it stops charging and keeps it at %100 by trickle charging. It's not harmful at all.
Ppl need to stop worrying and spreading false information.
What you don't want to do is to discharge to under 10% then charge to 100% and repeat. Now that's pretty bad for the Li-Ion battery.
Android has software safeguards as well as a physical charge controller by the battery that keeps the battery from overcharging. Overcharging is not a problem anymore.
No sir, it is you who does not understand battery chemistry. I have plenty of experience using Lithium batteries in high stress situations. 100% in a cell phone is 4.2v. Anything over 4.1v is technically overcharged for the chemistry and 3.9v is optimal.
Trickle charging the last bit is a balance issue even in a 1s cell to avoid even more overcharging otherwise Lithium can handle very high rates.
If someone is concerned with charging to 4.2v the app i pointed out is your solution. I don't believe warp charge itself causes any harm to a battery but at 1c or 4ah charge rate is the safe limit and warp could be delivering 6A on occasion to this battery.
larsdennert said:
I meant continual charging while full. IE 99% to 100% continually. Over discharging and heat kill them too. Leaving them partially charged affords them the best life. Tesla's also do this not charging to 100% daily for longer battery life.
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None of these phones have an issue if you leave them plugged in. The have a circuit that keeps the battery from charging when full. It stops charging and every few minutes it will let charge very slowly to keep it topped off. No damage to the phone or battery will happen.
---------- Post added at 01:54 AM ---------- Previous post was at 01:46 AM ----------
larsdennert said:
No sir, it is you who does not understand battery chemistry. I have plenty of experience using Lithium batteries in high stress situations. 100% in a cell phone is 4.2v. Anything over 4.1v is technically overcharged for the chemistry and 3.9v is optimal.
Trickle charging the last bit is a balance issue even in a 1s cell to avoid even more overcharging otherwise Lithium can handle very high rates.
If someone is concerned with charging to 4.2v the app i pointed out is your solution. I don't believe warp charge itself causes any harm to a battery but at 1c or 4ah charge rate is the safe limit and warp could be delivering 6A on occasion to this battery.
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GO back and read my first post in this thread. After reading that and I generally get home with over 50-60% battery. My batteries on the OP5 and OP6 after 1 year, I upgrade every year, only lost about 4-5% total battery capacity. I see people all the time complaining they are already seeing loss of 15-20% battery capacity and it's how they charge and treat their batteries.
Leaving aside the debate of battery health. I accidentaly discovered that if you Flash the latest magisk canary zip, something gets bugged and Warp charge stops functioning. Only regular charge at 1500 mah Is possible. Flashing stable magisk again gestores Warp charge just FYI.