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This is not a guarantee of battery life extension or performance. These are merely steps (in most cases) to possibly help prolong and restore battery longevity.
First lets understand something about battery charging. The most common mistake is to overcharge a battery. While one is inclined to charge when they see the low battery message, overcharging is detrimental to the battery. This is not good for the life expectancy of your cell phone battery, especially if you are expecting longer life from your battery. Over charging heats the battery, and drains its life expectancy.
Second, it would appear that after flashing (ROM’s, Kernel’s etc.) multiple times, your battery might not hold a charge all that well. Trying these steps may help improve battery life.
> Turn the phone on. Plug in the charger (not the USB to computer) and charge completely> Disconnect the charger and turn off the phone> Once completely shut down, plug the charger back into the phone. Let the phone completely charge, while phone is off. In some cases the phone may give a tone when charged. You can check its status by touching the volume up or down> Once again unplug the phone from the charger> These next steps are curcial. 1.Turn the phone on (give it time to boot completely) 2. Power it off again. 3. Connect to the charger once again. 4. Let charge to full one more time. Unplug the phone!
In most cases, this procedure need only be done once. Remember turn off bluetooth, intranet and other applications when not in use. These accessories pu a tremendous drain on a cell phones battery life. This is why they should be turned off, when not in use.
The old battery recalibration trick?
tomween1 said:
This is not a guarantee of battery life extension or performance. These are merely steps (in most cases) to possibly help prolong and restore battery longevity.
First lets understand something about battery charging. The most common mistake is to overcharge a battery. While one is inclined to charge when they see the low battery message, overcharging is detrimental to the battery. This is not good for the life expectancy of your cell phone battery, especially if you are expecting longer life from your battery. Over charging heats the battery, and drains its life expectancy.
Second, it would appear that after flashing (ROM’s, Kernel’s etc.) multiple times, your battery might not hold a charge all that well. Trying these steps may help improve battery life.
> Turn the phone on. Plug in the charger (not the USB to computer) and charge completely> Disconnect the charger and turn off the phone> Once completely shut down, plug the charger back into the phone. Let the phone completely charge, while phone is off. In some cases the phone may give a tone when charged. You can check its status by touching the volume up or down> Once again unplug the phone from the charger> These next steps are curcial. 1.Turn the phone on (give it time to boot completely) 2. Power it off again. 3. Connect to the charger once again. 4. Let charge to full one more time. Unplug the phone!
In most cases, this procedure need only be done once. Remember turn off bluetooth, intranet and other applications when not in use. These accessories pu a tremendous drain on a cell phones battery life. This is why they should be turned off, when not in use.
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Click to collapse
i feel like i do this every time i recharge my battery because every time i charge to 100% then turn it off and plug it in, it takes another 5 min to charge to 100 while its off. Literally, every time i bump charge it.
cumanzor said:
The old battery recalibration trick?
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Mhmm, an explanation of the bump charge. Been written here before, but eh. Maybe someone lost theirs. I lost my txt file with the instructions a while back lol.
The way I see it these instructions only help to provide a more accurate battery count. Whether the battery is displaying correctly or not, juice in the battery is juice in the battery. Nothing more nothing less. This whole battery issue is ridiculous.
I think it'd be a good idea to remove the battery icon from the notification bar all together.
ninjuh said:
Whether the battery is displaying correctly or not, juice in the battery is juice in the battery. Nothing more nothing less. This whole battery issue is ridiculous.
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Click to collapse
No. Your phone has software in it to detect how much battery life is left for a variety of reasons; it turns more battery-intense functionality off at 5%, the camera for instance, and keeps enough battery power so that it can run its shutdown procedure, instead of just dying and losing whatever's in memory at the time.
You also don't want your phone thinking that 19% battery is 1% and turning off or telling you to charge it, as charging a battery that isn't fully discharged is a great way to lose long-term battery life. Additionally, how much would it suck if your phone software thought that 75% was 100% and stopped charging? You could then be leaving for the day with 3/4 of your battery, thinking it was full.
There are plenty of reasons to want this to be as accurate as possible. Unless you just don't give a crap if your phone is usable or not
delugeofspam said:
No. Your phone has software in it to detect how much battery life is left for a variety of reasons; it turns more battery-intense functionality off at 5%, the camera for instance, and keeps enough battery power so that it can run its shutdown procedure, instead of just dying and losing whatever's in memory at the time.
You also don't want your phone thinking that 19% battery is 1% and turning off or telling you to charge it, as charging a battery that isn't fully discharged is a great way to lose long-term battery life. Additionally, how much would it suck if your phone software thought that 75% was 100% and stopped charging? You could then be leaving for the day with 3/4 of your battery, thinking it was full.
There are plenty of reasons to want this to be as accurate as possible. Unless you just don't give a crap if your phone is usable or not
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The "software" won't ever be off by more than 10%.
delugeofspam said:
...as charging a battery that isn't fully discharged is a great way to lose long-term battery life.
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Click to collapse
Not true with lithium ion batteries. They don't have charge memory.
ninjuh said:
The "software" won't ever be off by more than 10%.
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[citation needed]
I was having all kinds of issues with my battery draining too fast. I unplugged at 7:30AM and by 10:30AM it would be at 60%. I tried the bump charge and all that, but then I realized "It's the apps, stupid!" I started running a task killer after I unplugged it, and now I'm making it to noontime and I'm only down to 80%.
TLR: Keep your apps in check, they are what eat your battery.
ninjuh said:
The "software" won't ever be off by more than 10%.
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Click to collapse
A few days ago my phone shut off after draining the battery - before it shut off the battery was less than 1%. i let it sit for ten minutes or so then turned it on. - it showed 16%.
Sent from my SAMSUNG-SGH-I897 using XDA App
i do this ALL the time!
If you are running a custom rom it is also good to delete the battery charge stats when booting back up after step 4. If you have CWM just boot into recovery, go to advanced, then clear battery stats.
There is a way to clear it if you don't have CWM, but I don't remember what it is and I think most people have CWM anyways.
I check my apps frequently. One day my weather widget was going nuts and was using GPS non stop. I pulled my phone out at lunch and the battery was in the yellow. Granted I haven't seen that happen again it has made me reconsider even using apps/ widgets with GPS
widgets kill battery. I had several pages of widgets and I had to wipe by phone, remarkable how much "better" the battery was after that. Weather widgets look great but it costs to run them.
majortool said:
widgets kill battery. I had several pages of widgets and I had to wipe by phone, remarkable how much "better" the battery was after that. Weather widgets look great but it costs to run them.
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I've a feeling it has less to do with the actual widget and more to do with their constant updating when there is a poor or nonexistant connection.
Sent from my custom ROM'd Captivate
BigJayDogg3 said:
I've a feeling it has less to do with the actual widget and more to do with their constant updating when there is a poor or nonexistant connection.
Sent from my custom ROM'd Captivate
Click to expand...
Click to collapse
Don't download the anaimation sub-app. update on the hour (or 2) instead of 15 -30 min.
I would love some advice as a noob here. I've only had my Cappy for a little over 2 weeks. I've done the battery calibrate trick, but still don't see very good battery life. I unplugged from the charger at 100% at 10pm last night and left the phone on all night. Wifi and GPS were turned off. Beautiful Widgets is set to update weather every hour. The phone received 7 sms messages during the night. When the alarm went off at 6:30am I was at 70%. It's 10am now, so it's been off the charger for 12 hours. Here is what I show:
Voice Calls 34%
Cell Standby 23%
Phone Idle 16%
Display 15%
Android System 4%
Beautiful Widgets 3%
Android OS 3%
Android Core Apps 2%
antivirus 2%
Battery currently shows 51% left
I'm running stock Eclair JH7, build 1101
Would anyone suggest Advanced Task Killer or Juice Defender?
There are some good tips for prolonging and caring for your Battery here: (Can't post links, google search: site:arstechnica.com battery life ask ars)
However, cell phone batteries rarely run over $30 (I have seen capivate batteries as low as $13), if you just always fully charge it you will still see a good 8-12 months out of it, and then just buy a new one. $30 a year is worth it to me to just let the thing fully charge so that I can use it for longer.
kb0npw said:
Would anyone suggest Advanced Task Killer or Juice Defender?
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Click to collapse
PLEASE DO NOT INSTALL ANY OF THESE BEFORE READING
http://www.xda-developers.com/android/the-view-on-task-managers-for-android/
If you fully charge and run the battery, done several times, the battery will eventually run better. Surprisingly, there is a "break in" period for the battery.
I appreciate the advice on the task killers and such. I don't use one, and after reading that stuff, I won't. I pulled my phone off the charger yesterday at about 1pm. By the time I played some games, did some web browsing, made some calls and did some texting, it was still at 70% when I went to bed at around 10pm. This morning at 7am, I was shocked to find that it was still at 67%! I don't have a clue what was different. It typically hogs up 25-30% overnight, but this time it only did 3%. I wish I knew what was different. This is so weird!
This works in VegaN - YMMV...
Settings -> Wireless settings -> then hit the menu button, and choose "Advanced", then select "WiFi Sleep policy" (It was set to NEVER!)
Spare parts showed (via 'Spare Parts' app) that the WiFi was on 100% of the time - even while sleeping..
I'll give this a try tonight when I go to sleep.
I like to leave it at "never" so that there is no delay upon wake up to connect to wifi. With the table in use (vs. sleeping) the battery life is so long; almost 10 hours, I don't worry about a little battery drain while sleeping. Just connect it to the charger once a day or less.
insight3fl said:
I like to leave it at "never" so that there is no delay upon wake up to connect to wifi. With the table in use (vs. sleeping) the battery life is so long; almost 10 hours, I don't worry about a little battery drain while sleeping. Just connect it to the charger once a day or less.
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Click to collapse
You get a 'little' battery drain while sleeping? If I leave my gtab unplugged overnight, it loses about 4% per hour.. or about 30% overnight. That's why I'm trying different things. 30% overnight isn't a little to me -- it's way too much.
A tablet like this should all but go into a state of suspended animation while sleeping...
30%, really? That sounds as if there's something else going on rather than just wifi draining.
Edit- Some thoughts. There are some apps that require permission to update or snag some ads from the net and operate on their own.
Go take a look at what you have installed and look at your screen timeout settings.
If you have CWM and can get to recovery, wipe battery settings and then reboot/charge. Some people drain completely then charge to get to 100%. Some threads seem to show this is a Vegan issue. (Mine gets to 97 tops but as long as battery life is not affected, I'm good)
HTH
DudeInMyrtleBeach said:
You get a 'little' battery drain while sleeping? If I leave my gtab unplugged overnight, it loses about 4% per hour.. or about 30% overnight. That's why I'm trying different things. 30% overnight isn't a little to me -- it's way too much.
A tablet like this should all but go into a state of suspended animation while sleeping...
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Just curios, why would you leave it on all night when it will never be used? it only takes a minute to boot in the morning when you turn it on.
insight3fl said:
Just curios, why would you leave it on all night when it will never be used? it only takes a minute to boot in the morning when you turn it on.
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Click to collapse
I leave it in sleep mode because its my alarm clock. I also now leave it plugged in.
I've tried draining the battery then resetting stats in clockwork. If tried about every variation of doing that I can think of short of waiving a dead chicken over it.
sent from my g-tablet using tapatalk
I've left mine on and unplugged(it went to sleep) for 3 or 4 days and come back with battery still. 30% overnight seems odd.
skeeterpro said:
30%, really? That sounds as if there's something else going on rather than just wifi draining.
Edit- Some thoughts. There are some apps that require permission to update or snag some ads from the net and operate on their own.
Go take a look at what you have installed and look at your screen timeout settings.
If you have CWM and can get to recovery, wipe battery settings and then reboot/charge. Some people drain completely then charge to get to 100%. Some threads seem to show this is a Vegan issue. (Mine gets to 97 tops but as long as battery life is not affected, I'm good)
HTH
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Click to collapse
I think you might be right, because I used Cyanogen Mod for a month and a half and had no issue like this. Now I am using TNT Lite 4.2.4 and I am still having no battery life issue.
Also I have never been not able to charge my Tab to 100%. So I may suggest that you guys try switching to cyanogen mod or tnt lite.
Not sure what's happening with my phone, but after removing the plug on my fully charged phone, I will let my phone sit idle for about 10 mins, when I go wake the screen, I see that I've already lost 3% of battery capacity.
The weird part is after this initial 3% is gone, my battery will drain normally. Does this mean I need to calibrate my battery? Is there anyway to do this without damaging it?
It means you need to get a new hobby... seriously, why do you care if it changes nothing what so ever. In order to fix this, you should try not checking your battery percentage every 2 minutes. On the upside, this will probably give you another half hour of battery life as well.(damn a change of attitude would fix like 90% of problems on this site)
On a more serious note, it's likely just because your phone doesn't keep charging when it hits full charge, it stops charging in order to not kill your battery, and lets it drain to like 90% at which point it will charge back up to 100%, so it may be at any point in between when you disconnect it. Even if it is truly at 100% when you disconnect the charger, the measurements may not be completely accurate when approaching 100%, so it is likely, that could make it drop faster at first. You need to do nothing in order to fix this, seriously don't mess with it.
CoronaDelux said:
Not sure what's happening with my phone, but after removing the plug on my fully charged phone, I will let my phone sit idle for about 10 mins, when I go wake the screen, I see that I've already lost 3% of battery capacity.
The weird part is after this initial 3% is gone, my battery will drain normally. Does this mean I need to calibrate my battery? Is there anyway to do this without damaging it?
Click to expand...
Click to collapse
Are you running stock or custom kernel and any custom ROM? Ive noticed this sometimes too but that's because the phone, when unplugged is running services to start phone on battery power versus the cord/wall charger. Check logcats to see what happens when phone unplugged to see what may be happening when phone starts on battery.
I think you are worrying about it a little too much. It could be searching for service (which drains a lot of battery), starting services as someone previously said, heat is horrible for a battery, anything. If the drain is normal after that who knows it could be the ROM you are on, battery percentage not being reported correctly.
Not worth an RMA by any means. Reset battery stats in recovery and see how that works out for you.
Bear in mind, these batteries are cell batteries, a user who plugs their phone in every time the battery hits 50%, is going to notice over a period of time the time it takes to go from 100% to 50% is shorter and shorter, and suddenly, 49%-0 holds a better charge. If you're constantly charging your phone, you'll wear those cells of your battery down. This is where the "hoax" of always letting your battery drain to 0% when you get it to "maximize" battery potential came from.
When you sleep, does your phone sleep, or does it stay up all night and crunch 1s and 0s? Rate this thread to express how you deem the speed at which the OnePlus 5's battery drains under standby conditions. A higher rating indicates that when the phone is not in use, the battery drains minimally.
Then, drop a comment if you have anything to add!
I am not too pleased about idle battery drain.
Overnight, about 8h it consumes about 3%-5%. Sometimes more than 10%, if the device doesn't go in deep sleep for whatever reason..
If commute, it takes more battery (maybe sensors, switch to mobile data, etc).
About 20% in 9hours. wifi most of the time with about 1h hour on mobile data. And movement in pocket about 20-30mins.
My experience with idle drain has been good overall. Getting around 0.5% per hr
My idle drain is horrendous. I'm getting around 20% drain over night (7h sleep) with nothing enabled but WiFi. And that's with Greenify. I'm thinking of rooting and flashing the EX Kernel, but wanted to wait for an obviously outstanding major update before doing so.
ipredatorv said:
My idle drain is horrendous. I'm getting around 20% drain over night (7h sleep) with nothing enabled but WiFi. And that's with Greenify. I'm thinking of rooting and flashing the EX Kernel, but wanted to wait for an obviously outstanding major update before doing so.
Click to expand...
Click to collapse
Maybe check whats draining the battery :cyclops:
I don't use greenify or anythinf and use only 4g. Im getting perfect battery life.
TheGripper said:
Maybe check whats draining the battery :cyclops:
I don't use greenify or anythinf and use only 4g. Im getting perfect battery life.
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Click to collapse
Android System, Phone Services + Google Services, but only if WiFi/data is on. If they are off the battery life is perfect.
Sent from my ONEPLUS A5000 using Tapatalk
Battery was good until yesterday, 8hrs SOT circa. Suddenly battery starts draining and can I barely reach 2,30 SOT. Any idea? No apps showed in battery page, the only app I downloaded yesterday was Textra SMS (Beta), but it's very strange that it can drains so much.
beautifulsun said:
Battery was good until yesterday, 8hrs SOT circa. Suddenly battery starts draining and can I barely reach 2,30 SOT. Any idea? No apps showed in battery page, the only app I downloaded yesterday was Textra SMS (Beta), but it's very strange that it can drains so much.
Click to expand...
Click to collapse
For me Chrome was a big culprit for battery drain. Try to delete the cache and the storage of the app. You can as well disable and it and re enable it. That should be enough. Anyway, Chrome is a battery hog. I am thinking about switching to Opera or Firefox. Any recommendation for browsers?
I use Firefox with the add-on 'Dark Background and Light Text'. I have it set to turn the background of all pages to true black.
2% over night (7 hours) pretty pleased. But it was even better on OP3 when the drain over night was 0-1%
I'm on RR with no GAPPS and lost about 1.5% in about 8.5hrs of not being used (sleep + getting ready in the AM)
I have TASKER, and have set airplane mode to come on 8pm - 3am.
Currently getting roughly 2-3% drain in that "airplane mode" time
L22EEW said:
I have TASKER, and have set airplane mode to come on 8pm - 3am.
Currently getting roughly 2-3% drain in that "airplane mode" time
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Click to collapse
What the? Do you have gestures enabled (eg: double tap to wake)?
In my opinion it consumes too much.. one time i got about 3% drain in about 8-9h idle with wifi on and no commute.
That's why i hate android idle drain. A never-ending issue.
SOT only 34 mins, 1h mobile data, the rest on wifi.
I've disabled gestures, location history, no google fit, etc etc
Not bad here. About .3% per hour overnight. So about 2% overnight. That's on 4G as I rarely ever have my phone on WiFi. I also have email at to push (2 accounts) and I usually turn off the sync stuff in my Google account. Things like app data, calendar, contacts and the rest. I just sync when I make changes like adding a contract I then toggle the contacts on then off kind of thing. No need to let it sync all day and night for nothing imo.
I just have that drain when location is set to "high accuracy". When its set to "battery saving" everthing seems fine.
I don't know what's wrong with my device/apps. Several times now i had a standby drain in around 7 hours of 30%+. I didn't plug my phone in overnight because of Dash charging, when I went to bed, the battery was at 37%. The next morning I overslept massively and completely missed my shift because my battery died over night. This is with airplane mode on during 75% of the night. The highest drain in battery settings was displayed for "Android System" with around 12% or so, but that was with the last day counted in. I feel like the battery drain stats in settings are completely unreliable...
Except from that I get normal battery life during the day though, although during the first few days standby drain was higher than screen on drain...
Chaphasilor said:
I don't know what's wrong with my device/apps. Several times now i had a standby drain in around 7 hours of 30%+. I didn't plug my phone in overnight because of Dash charging, when I went to bed, the battery was at 37%. The next morning I overslept massively and completely missed my shift because my battery died over night. This is with airplane mode on during 75% of the night. The highest drain in battery settings was displayed for "Android System" with around 12% or so, but that was with the last day counted in. I feel like the battery drain stats in settings are completely unreliable...
Except from that I get normal battery life during the day though, although during the first few days standby drain was higher than screen on drain...
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Click to collapse
Yeah man you need to download accubattery or something to monitor the drain. That's ridiculous. And yeah I've been kinda confused about the stock battery stats as well. It seems to tell you nothing.
I have noticed a lot more battery drain since the 911 update a few days ago. I was getting 7ish sot now I'm under 5hrs. I'll bet I'm not the only one who noticed it though. It'll be fixed don't worry.
jkieffer46 said:
Yeah man you need to download accubattery or something to monitor the drain. That's ridiculous. And yeah I've been kinda confused about the stock battery stats as well. It seems to tell you nothing.
I have noticed a lot more battery drain since the 911 update a few days ago. I was getting 7ish sot now I'm under 5hrs. I'll bet I'm not the only one who noticed it though. It'll be fixed don't worry.
Click to expand...
Click to collapse
I had AccuBattery installed at first but it didn't give me any meaningful insights so I uninstalled it a few weeks later.
I normally only get around 3 hours of SOT, but I'm not into mobile gaming or YouTube so that is normal...
I notice significant drain in idle after the 4.5.6 update last week. Android system seems to be the culprit, but not sure what's process under this is actually causing the problem.
All radios on, and 2 mail accounts syncing.
Is anyone experiencing a battery drain even though your S22 Ultra is switched off? I'm experiencing 4% drain every hour. 32% when every night when I sleep with my phone turned off.
I turn on power saving and extra dim using the bixby routine for the period that I'm in bed sleeping. It loses 1-2% ph
If you don't mind, can you try turning off your phone for the night and see how much battery percentage it loses? Mine went from 32% to flat 0% by morning. I had not realised this until recently. I tested in the morning by turning off my phone for an hour, it went from 60 to 54%. That's like 6% in an hour. But if I keep it on standby , it'll be 1% down in an hour. It's the turning off that is causing problems.
I know some laptops will drain battery power after shut down, but phone?
Exy or Snap?
Try checking in details with a battery monitoring app (e.g. GSam) to see what is/ are the culprit(s).
Also take a look at here for some useful tips.
It's strange that a lot of battery drain when phone is completly off.
In my opinion it's short circuit or battery is fault.
If phone is normal on are you see too battery drain?
When phone is switched off battery shouldn' experience any drain, or at least any noticeable drain in a short period.
Remember, when you bought your phone it came with battery half charged, and that was probably months after it was assembled and sealed in its package..
You should take your phone to a service or replace it, if possible
maybe somewhere on the PCB there is a short circuit. I ran into the same problem when using Xiaomi Mix 3 11 months ago.