Hey guys,
I know that bump charging dramatically improves battery life. I also know that it kills your battery. However after doing just one bump I have dramatically increased battery life. Sitting at 70% when I would be at ~40% normally. I was just wondering if just doing 1 bump is as bad as the normal 3+ method. I am hoping it won't degrade my battery because there is still room left to charge.
Can anyone comment on this?
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I have been noticing something strange. I have gotten in the habit of draining my battery down to single digits before charging in an attempt to keep my battery life up. I usually use netflix on 4g to do this as it does a pretty good job of sucking the juice down quickly.
A few times I have noticed that after I shutdown netflix and let the phone sit a little while that the percentage actually goes back up. For example, I kill netflix at 4% battery left. I set the phone down for a bit and when I pick it back up the battery is at 10%. I have seen this multiple times.
Just curious if anyone else has noticed this and anyone has an explanation for why this happens.
I believe it has to do with the battery meter displaying how much battery you have left based on what you are doing? So when you stopped being resource intensive it adjusted itself.
That's one explanation I have heard.. there is also one that has to do with the amount of current going to the battery.
Sent from my Galaxy Nexus using xda premium
trevoryour said:
I have been noticing something strange. I have gotten in the habit of draining my battery down to single digits before charging in an attempt to keep my battery life up.
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I can't answer your question directly as there could be multiple reasons. (Battery capacity estimation is tricky business, and I don't know what algorithm they're using.)
But I can tell you that the common belief that one ought to discharge batteries before recharging them is not applicable to modern lithium batteries.
I was (to some extent) true for old-fashioned NiCd cells, but modern Li-ion cells shouldn't be excessively discharged. If you want to prolong battery life it's more important to keep the battery cool. (Lithium cells degrade much faster at elevated temperatures.)
(To contradict myself I have to add that the battery capacity calculation can be improved by discharging the battery completely from time to time - but again, this depends on the battery capacity calculation algorithm they're using.)
I understand the way current battery tech works. The discharge is not for the battery itself. Its for the Android OS. I have noticed that whenever I plug my phone in in the middle of the day, the next day my battery doesn't last as long. In fact the poor battery life will remain an issue for about a week until it levels itself back out. I have noticed this behavior on multiple phones by multiple manufacturers.
You end up going in a circle. You use heavy data one day and as a result you have to plug in in the middle of the day. The next day your battery doesn't last as long so you plug in again. Unless you allow your phone enough time to level back out then it will always appear that your battery life is aweful. Since i've been discharging my battery I am able to unplug my phone at 7:30 am, use it moderately all day with GPS, Bluetooth, 4G on/wifi off with a live wallpaper running. At 11:30pm when its time for bed I still have around 60-70% battery remaining. I find myself having to watch a few hours of netflix on 4g in order to drain the battery so I can plug it in.
I'm not sure if this behavior is a result of an issue with the battery stats file or what but I do know that when I flash a new ROM it appears my battery life is reset to how it was before I had shortened it by plugging in the middle of the day.
many of us have seen the percent rise slightly, its normal. when under heavy load watching videos or something and then you are finished, the voltage gets relaxed and pops up some. since this phone uses some type of voltage calculation to determine percent, it will jump up once in a rare while, typically right after you placed it under heavy load then went to idle.
it's normal..
Hello guys,
I have a GSM Galaxy Nexus running the latest Android 4.2.1 Officialy from Google. I hae bought an original extended battery for it, but the issue is that it seems that it holds less juice than the original one, that came with the phone.
With the default battery, i get around 3 hours of screen on and with the extended one, i barely get 2:40 minutes. Tried this a couple of times.
What's the matter with it ? Do i need to calibrate it somehow ?
I have the same battery and had the same issue. After using it for about a week it started working better. What I suggest is charge it all the way up and then use it until it completely goes dead then fully charge it again. Do this a few times then you should notice the difference which isn't huge but I'm averaging about 4-5 hours more than standard now.
Sent from my Galaxy Nexus
I did this allready, and there's no improovement.
I have been using this batter for over 1 month now.
calibachrome said:
I have the same battery and had the same issue. After using it for about a week it started working better. What I suggest is charge it all the way up and then use it until it completely goes dead then fully charge it again. Do this a few times then you should notice the difference which isn't huge but I'm averaging about 4-5 hours more than standard now.
Sent from my Galaxy Nexus
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With Li-ion batteries, this should make no difference what so ever. It should get better over time. From what I've researched, you should never let a li-ion battery fully die. When it hits 20% - 30% fully charge and then don't charge again until you hit 20%. There are only so many charging cycles on a battery.
You might have something constantly running in the background that is eating your battery. Try juice defender, it drastically improved my stand by time.
What i was saying:
The stock battery holds a charge of ~3 hours of screen on time
The extended battery holds a charge that lasts less than 3 hours witch is strange because it haves a bigger capacity.
Is there any way to reset the baattery stats ? Or to reset the battery count ? Something like that ?
The whole "wipe battery stats" thing found in CWM is useless. Confirmed to be by a developer at google.
http://www.xda-developers.com/andro...-battery-stats-does-not-improve-battery-life/
I see. Anything else i can try ?
I recently bought a S4 Mini (i9195) and I noticed it has a decent battery life.. until 5%. When the battery reaches 5% I get a huuuge drain.. it's like, draining to 0% in about 1 minute. And it happend all the time. Whats wrong with the device? :crying:
I'll try that, haven't noticed what happens at 5%.
Im shure mine has 3%/hour battery drain over night so I'll spect from 5% at least one hour at idle
Sent from my GT-I9192 using Tapatalk 4
Doesn't happen to me but I've experienced that with my old phones. Always happens when I charge my phone when it's far from empty and unplug it when it's far from full, multiple times.
Like I used to plug it in whenever I could find a power source so that I can play my games throughout the day. And I usually have to leave halfway for other things so I'll unplug it when it isn't fully charged yet.
Then after a while I noticed that the battery was draining quickly when it was at lower percentages but draining slower at higher percentages.
It slowly became more constant as I learnt to charge it when it was completely dead and unplug it only when it was full. (I bought an external battery pack USB charger to help with this)
I think this calls "memory effect" or?
Lithium batteries do not have memory effects anymore.
If the phone is new, try charging it completely and discharge it completely a few times. If it then still persists, the battery is probably not calibrated right.
The real size of a battery is not as stated on the cover 1900, but varies around it, depending on the manufacturing. Similar to CPUs, that get tested and then categorized for certain speeds.
So could be that you have a less optimal battery and therefore the calibration to 1900 as expected by the system is not right. So when you see 5% you are already much lower in reality.
I am new to Android, so I do not know if there are battery calibration tools out there, but I guess so.
Greetings
Christian
Solved my battery drain by updating google maps to latest version
Sent from my GT-I9195 using xda app-developers app
Nope, the system will just shut down at about 5% to prevent a deep discharge of the battery which is really bad for li-poly/li-ion batteries.
Hello everyone. I am trying to calibrate my battery but I can not increase brightness when under 10% and its waaaay too low. My note is rooted 5.1.1.
The reason I want to calibrate the battery is that when on 20%, after reboot, it goes to 45%. Is it a good solution to completely drain and then charge the battery (at least one time)?
Hi Guys,
My issue is a little bit weird. My AT&T Note 4 has a battery problem relating to charging. This issue is consistent. One day I charge my phone it charges to 100% without any issue. The battery life is good for 2-3 years old battery 2-4 hours on screen time depending on usage. But the very next day when I try to charge my phone the battery percentage won't go beyond 85%-89% and I have to do a battery pull and it immediately shows 99%-100% and I can disconnect my charger.
I am not complaining about or worried about battery life I know it sucks but I want to know a solution so I don't have to battery pull every other day just to reach 100%.
Please excuse my English, it is not my native language.
Not a weird issue, your battery is going bad. Get a quality replacement.
So this is happening to me too.. I just got this phone over the holidays from ebay. Used/mint condition, no OLED burn or anything.. perfect condtion..except for the battery.. won't charge past 82% I've ordered a new one. But still looking to make sure since I've read a lot on the Internet about LL and MM causing battery drain problems...so..
So these battery stats indicative of an old battery?