Related
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.
Click to expand...
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?
Click to expand...
Click to collapse
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.
Click to expand...
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
Click to expand...
Click to collapse
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.
Click to expand...
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%.
Click to expand...
Click to collapse
[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%.
Click to expand...
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.
Click to expand...
Click to collapse
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?
Click to expand...
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!
Hey guys, I have a problem with my Sensation. Whenever I fully charge it and then remove it from the charger, use it for like an hour or two, the phone still thinks the battery is 100% charged. When looking inside the battery usage, it shows the graph with 0s underneath it, while in the previous screen where you see the apps battery usage it says 2h 5m 13s or something like that.
This wouldn't really be a problem, but when I started up Maps Navigation and plugged the charger in the car, it wouldn't charge because it still assumed the battery was 100% charged!
Any of you also having this problem? Thanks in advance!
atticus182 said:
Hey guys, I have a problem with my Sensation. Whenever I fully charge it and then remove it from the charger, use it for like an hour or two, the phone still thinks the battery is 100% charged. When looking inside the battery usage, it shows the graph with 0s underneath it, while in the previous screen where you see the apps battery usage it says 2h 5m 13s or something like that.
This wouldn't really be a problem, but when I started up Maps Navigation and plugged the charger in the car, it wouldn't charge because it still assumed the battery was 100% charged!
Any of you also having this problem? Thanks in advance!
Click to expand...
Click to collapse
Does it stay 100% forever? Then you may have the inexhaustible battery... (not sure if this is grammaticaly correct )
I wouldn't consider this a problem. You can download a battery monitoring app from the market and see what's going on with your phone and if the 100% that it's rerporting is correct. Also, check that the battery contacts are clean.
Not sure my phone does that but it can be on half charge then when I reset phone it's gone up a notch. This morning it didn't look like it had charged although it had been plugged in. When I switched it was on orange then it did the charging animation for a few seconds without charger plugged in then stopped on full. Odd.
Mine stays on 100% for a couple of hours too, has done since I got it.
I think perhaps HTC are "cheating" (or using "creative coding", whichever expression you prefer) in the way they report the battery percentage. Make the battery appear better than it is. Just a theory, of course.
This morning it didn't look likeit had charged although it had been plugged in. When I switched it was on orange then it did the charging animation for a few seconds without charger plugged in then stopped on full. Odd
Click to expand...
Click to collapse
That happens to me a lot too. Woke up this morning, phone had been charging for nearly 5 hours, but was only on 82%. After a couple of minutes of the screen being on, it had leapt to 100% and stopped charging.
Also, once the battery is below about 20%, it will sometimes drop 2-3% at a time. Odd.
Looks like they totally screwed the battery meter hardware or something in the software. Remembers me of my iPod touch
Experienced the say.. hopefully either it will auto be fine due to charge cycle or via updates
Sent from my HTC Sensation Z710e using XDA App
The Battery driver that LG used for the G2X has the same problem,a simple reboot fixes it,hope this helps "temporarily" that is.Cheers
Not just the sensation - my wildfire does the same yet my galaxy tab doesnt
Sent from my GT-P1000 using XDA App
sjgore said:
Mine stays on 100% for a couple of hours too, has done since I got it.
I think perhaps HTC are "cheating" (or using "creative coding", whichever expression you prefer) in the way they report the battery percentage. Make the battery appear better than it is. Just a theory, of course..
Click to expand...
Click to collapse
Thanks for your answer, so it's probably a general problem that may be fixed by either HTC or the Cooks that make ROM's for our beautiful new phones
Can you tell me how long it takes for your phone to fully charge?My phone needs 3-4 hours to fully charge..is this normal?!
Hmm mine doesn`t lag but it takes times to charge. Usually with my hd2 take around less than 2 hours to fully charge now with sensation around 3 hours
Sent from my HTC HD2 using XDA App
Using it almost half an hour,battery felt from 100% to 99%...And I checked the battery useage,it isn't wrong..
Official Asia ruu 1.28.707.2
Although it is dual core,I think the battery life is much better than DHD..
Sent from my HTC Sensation Z710e using XDA App
I received my phone yesterday and charged it for 4-5 hours throughout the day. Last night it was close to 100% while I was playing with it (off the charger). I then charged it over night for 9 hours. This morning the battery says it's at 50% but has 15 hours left.
Weird :\
Charge the battery with the power turned off overnight, in the morning unplug the charger, turn the phone on, and shutdown again, and plug the charger back for 30
mins phone still turned off. After that start using the phone normally, this way you calibrate the phones battery meter properly.
EnhancerFIN said:
Charge the battery with the power turned off overnight, in the morning unplug the charger, turn the phone on, and shutdown again, and plug the charger back for 30
mins phone still turned off. After that start using the phone normally, this way you calibrate the phones battery meter properly.
Click to expand...
Click to collapse
Thanks mate! I'll do that tonight
Have to charge almost twice a day... I believe it happened after latest 1.45.531.1 update....
Disabled all animation, got auto adjust for display, disabled all what I could.. Still gives me 12 -16 hours on standby only....NOT even using the phone!!!!
Does anyone have something like that??? Or there is some remedy I skipped?
Sorry if I repeat someone's question.
Running full stock, HTC battery.
Thanks in advance!!
Tester.
PS. Recently exchanged the phone.... First one R.I.P......died completely, didn't even charge.
Is there a chance they swapped a refurbished one on me??? How to find out???
can you provide a screenshot of the battery usage graph? also, have you tried getting an aftermarket, bigger battery such as the anker?
I was the same way as you. I checked my battery graph, and standby was using something like 80% of the battery with almost everything turned off. By the time I got home from work I would need to charge it immediately. I bought one of the Anker batteries on Amazon for $15 bucks or so, and I'm now getting about 2 days for a charge. I don't know what it was with my battery, because it sounds like my experience wasn't typical, but I didn't really feel like going through HTC when I could just pay the $15.
I'm with ya...
This phone was running PERFECT prior to the HTC update. Now I'm having a plethora amount of problems, including the battery. For example, prior to the update I would get 13-16 hours on HEAVY usage... Moderate usage? Try a day or day in a half. Now take today for example, I unplugged my phone a little before 7am and I had 20 something percent 4 hours later.
I'm telling you, that HTC update really messed this phone up IMO.
Thanks, guys!!
Will try to get Anker battery, I believe it's 1900 mAh.
But again something running on the background with that update. We'll see.
I'll try to get the graph, maybe someone'll get some sense of it...
Much appreciated,
Tester.
here are the battery stats...
Display..........74%
Cell standby...13%
Phone idle......11%
Voice calls......2%
THAT'S IT!!! Nothing else is running...... SUX...
Still gives 12 - 16 hours of life on almost idle......
I hate to say it,but if you're battery's dying a lot faster after an update,a bigger battery won't help much.
I'd be getting in touch with HTC and ask them what the heck is going on.
Really annoyed with the battery performance. I checked and only display is using 90% of battery. Tried everything to reduce it but no change.
Sent from my HTC Sensation Z710e.
Tester30 said:
Have to charge almost twice a day... I believe it happened after latest 1.45.531.1 update....
Click to expand...
Click to collapse
I've had the same issue since the update. My battery drains at a ridiculous rate. I've become really frustrated with the phone since. I rooted it and flashed a custom ROM in hopes of solving the problem but it's the same deal.
I've confirmed it's not the battery either since I've got another one I've tried and only get the same results. Even with Juice Defender running I get nowhere as great a battery life as I did before the update
I'm doing decent 8hrs 20,mins on batt. With 40% left mostly text and internet browsing
Sent from my HTC Sensation 4G using xda premium
Try clicking the graph at the top of the screen it will give you another screen that shows awake/screen time etc. Is your phone going to sleep when you screen turns off?
I was having the same problem and realized that some app was keeping my phone awake even though the screen was off. I uninstalled 80% of the crap I had installed and now my phone sleeps like it should and battery lasts amazingly long time.
Tester30 said:
here are the battery stats...
Display..........74%
Cell standby...13%
Phone idle......11%
Voice calls......2%
THAT'S IT!!! Nothing else is running...... SUX...
Still gives 12 - 16 hours of life on almost idle......
Click to expand...
Click to collapse
anurbanlegend said:
Try clicking the graph at the top of the screen it will give you another screen that shows awake/screen time etc. Is your phone going to sleep when you screen turns off?
I was having the same problem and realized that some app was keeping my phone awake even though the screen was off. I uninstalled 80% of the crap I had installed and now my phone sleeps like it should and battery lasts amazingly long time.
Click to expand...
Click to collapse
How can you tell if your phone is going to sleep when you lock the screen? What is a good method for this? And if I find it its not sleeping when it should, is there a way to find the culprit easily?
Sent from my HTC Sensation 4G using XDA App
_DavidWebb said:
How can you tell if your phone is going to sleep when you lock the screen? What is a good method for this? And if I find it its not sleeping when it should, is there a way to find the culprit easily?
Sent from my HTC Sensation 4G using XDA App
Click to expand...
Click to collapse
Click on the graph in battery stats, it should show awake time and screen on. If your awake time is constant when the screen on time isn't, then chances are you've got an bad app somewhere preventing the phone from sleeping
my battery life was plain **** on 2.3.3., device was running hot all the time (=waste of energy), charging took ridiculous 4h+! When I took it off at the charger around 23:00 the battery was dead at 14:00 the next day with most time being idle!
Since my update to 2.3.4 things got so much better. charging takes around 2h and battery finally lasted a whole day and had 40% juice left in the evening.
Since I got my 2 Ankers+charger for 20$, battery life is crazy now. Been on one charge for 2d2h and still had 16% left. Pushmail on, wifi on (cellular data only when not at home), brigthness at 100%, taking video, pictues and some navigation, messaging and phonecalls. Oh yeah and a few minutes of flashlight use
I would say between slight and medium use.
If 2.3.4 worsened your batterylife, contact HTC or your vendor.
I now replaced the battery at 16% with the other Anker because I still need to do my 5 charge cycles on that one to calibrate it.
Here's an example of the graph. At the bottom you can see awake and screen on time. I pulled phone of charger last night, did some browsing, then ran for an hour with music playing in the background (you can see the small green bar on awake even when screen is off). After I surfed a little and left it off the charger when I went to bed. The phone is properly sleeping when the screen is off and almost 16 hours and still have 62%.
Before I uninstalled the apps, the awake time was solid green across the screen.
Anker battery worked wonders on my device. Before I would have to throw it on the charger after lunch as I like to go for a beer after work and the stock battery would never make it that far... Now when I get home from the bar I still have ~30% battery. Anker battery FTW!
flash a custom rom and u will go gaga over ur battery life. definitely works for me. on standby overnight drain 0-1%.
I found out that if you don't have strong signal at your location your battery drains pretty fast that's why I always connect my phone to WiFi at my apartment where my phone looses signal sometimes. now I lose just 1-2% of power during a night.
Sorry to hear about your battery troubles. A couple days ago I rooted and switched to "Android Revolution HD 3.0.4" and my battery life seems pretty solid. I wasn't having battery life issues prior to this though.
I'm currently in the process of calibrating the battery:
- drain it mostly
- turn off
- plug it in overnight while still off
- in the morning unplug, wait 15 minutes, replug for a few hours; do this ONLY ONCE or you may damage the battery
- power on, immediately go to recovery, advanced, reset battery stats
- start normally
- drain battery until it shuts down; a continuous stress test or stability test app is probably ideal
- once it shuts off, turn it on again to double-check that it's dead; it should only come on for a second or two
- while off, plug in and allow to fully charge; no fooling around with plugging/unplugging, just normal
- calibration complete!
I think you can follow a similar procedure (minus clearing battery stats) to refresh the battery calibration even without rooting/custom recovery. I've read the effectiveness is similar. The phone just needs to be retaught what "full" and "empty" mean, all in one charge cycle. If you calibrate it wrong you could have issues with it shutting off while still reading ~15% battery life.
Anyway, as I said, I'm in the process of doing this. Currently I'm in the "drain it" phase... with my screen at maximum brightness (remaining on), overclocked to 1.5 ghz, I've been running "StabilityTest" (from market) for one hour and fifteen minutes. It stresses both cores as well as the RAM. At this time, my battery is at around 30-40% or so, and it's getting really hot! The phone's temperature is reading as 54.8 degrees!
Also, yesterday I used the GPS for about 4 hours before it died, this was prior to any calibration attempt. I think this is within typical battery life considering that the screen stays on.
TL;DR: Maybe you just need to try a custom rom or recalibrate your battery. Miscalibrated battery can be caused by flashing/updating a rom, I imagine even when it's an OTA. Sense is crippling your phone anyway, you might as well give it a try IMHO.
get yourself an anker battery..I havent charged my phone since the day before and now i have 20% left! heavy usage
Sent from my HTC Sensation 4G using XDA Premium App
I have long suspected something was wrong here. So last night, I charged my G2X to 100%, then turned the phone completely OFF!
Nine hours later I turned my phone back on, saw the nice Trinity animation, and saw that my battery was now at 89%!!!
WTF? Can anyone tell me what's going on here? My battery is only 7 months old! How does the battery drain so much with the phone off???
It could be that the battery is lying when it's at 100%... but I have read that the g2x drains while shut off.
Next time charge to 100, reboot phone, see what % it's at, then shut off the phone and test.
When I had charged the battery to 100%, I had left it connected to the charger for about five hours at 100%.
EEngineer said:
When I had charged the battery to 100%, I had left it connected to the charger for about five hours at 100%.
Click to expand...
Click to collapse
Still doesn't change the fact that it could be lying.
Sent from my LG-P999 using XDA
Mine does this along with a few others, there is a thread on the subject already.
Sent from my LG-P999 using xda premium
mt3g said:
Mine does this along with a few others, there is a thread on the subject already.
Click to expand...
Click to collapse
Some say it could be the kernel, but there doesn't seem to be any resolution.
As to battery gauge accuracy, I have Battery Monitor Widget Pro installed and it verifies the sensor accuracy.
Charged to 100%, pulled the battery & let it sit for 8 hours. Just put the battery back in and the fuel gauge and Battery Widget Pro both say 100%.
With the way virtually every rechargable battery works this is pretty normal. When you charge a phone battery or anything really overnight it doesn't actually take the whole time to reach 100%. Most phones only require a few hours and after it hits the 100% mark it actually starts draining a little (as you have it plugged in) to about 95% or a little lower (your phone however is programmed to still display 100% to reduce user anxiety and will slowly adjust to the actual battery percentage as time goes on) And as someone already said, leaving the battery in the phone (even while it is off) will drain the battery too. This can be fixed by simply removing the battery until you want to use it.
ehafling said:
With the way virtually every rechargable battery works this is pretty normal. When you charge a phone battery or anything really overnight it doesn't actually take the whole time to reach 100%. Most phones only require a few hours and after it hits the 100% mark it actually starts draining a little (as you have it plugged in) to about 95% or a little lower (your phone however is programmed to still display 100% to reduce user anxiety and will slowly adjust to the actual battery percentage as time goes on)
Click to expand...
Click to collapse
This is false and contradicts my measurements. BTW, the Android battery API shows the real percentage of the battery and doesn't "display 100% to reduce user anxiety". A battery meter that lied about its charge would INCREASE user anxiety.
it is well known that modern Android phones, including iPhones, have sneak circuits that still operate when the phone is switched off, including the GPS. It's a big privacy issue.
Then why doesn't it happen all the time on all phones and roms? I can confirm while using hfp 2.1 it drained with phone off and battery inside, but on cm7 nightly latest and stock kernel it hasn't done it to me yet.
Sent from my LG-P999 using xda premium
Because it's up to the kernel. Different kernels behave differently when the phone is off.
Kernel
Prob Has to do with Kernel. Maybe its the battery driver your using.
For example I'm using Hellfire phoenix Rom with this Kernel > http://forum.xda-developers.com/showthread.php?t=1073626
I can use the one with DebouchedSloth's Battery Driver "(funky readings, but great battery performance)" or with the Official CM7 Battery Driver "(smooth readings, but battery life is slightly less than DebouchedSloth's driver)"
I think it's because the phone isn't actually off when you "power it off." I say this because when it's "off" and you plug in a power source the screen shows a charging graphic almost immediately, so it must still be on in order to detect the charger and show something on screen that quickly.
I had mine charged to 100%, turned it "off", came back 3 weeks later and it was dead.
Not sure why they'd design it like that. I guess the phone needs to be "on" in some sense to be able to charge while "powered off." I assume other phones can charge the battery while the phone is actually completely off.
O.K., just lost 10% battery overnight when powered off.
I've read that a draining battery when off is caused by the Fast Boot setting. When powered off some things are still running so the phone boots up faster.
In OEM Android there is a "Setting > Power > Fast Boot" that I can uncheck, but on CM7 I can't find that setting. Any ideas?
Hi, Getting close to 2 years on my gs4. The battery doesn't seem to hold the charge like before. How often do we need to replace the battery?
kipliq said:
Hi, Getting close to 2 years on my gs4. The battery doesn't seem to hold the charge like before. How often do we need to replace the battery?
Click to expand...
Click to collapse
I don't think there is really a set time, its just that when it starts to go just replace it.
I'd usually do it within 18 months so you're on time for a replacement. Batteries don't last too long which is why buying a sealed battery phone is ridiculous imo.
Depends a lot on how you charged it over the years. Some people say it's better to charge those kind of batteries often and don't let them get below 20% or 50%. And If you use your phone while it' charging, that also decreases the life of the battery. High heat or cold also take some time off the battery's life.
Even if you do take good care of the battery, it will inevitably lose it's capacity over the years.
crazyguns said:
I'd usually do it within 18 months so you're on time for a replacement. Batteries don't last too long which is why buying a sealed battery phone is ridiculous imo.
Click to expand...
Click to collapse
I feel the same way. But maybe nowadays ppl change phones pretty quickly, so by the time the battery's about to die, they're already getting a new one.
I have been using my phone for almost 2 years, and it already loses its charge so i decided to change it. I think it depends on your usage, if you use it for heavy use, it will loses its charge faster.
I bought new original battery after 12months of using old one,with daily usage i can get around 5hours of screen time
Sent from my SGH-I337 using Tapatalk 2
Well after 2 years, any good old battery will be singing on the last verse so to speak. Time to change it. Just normal!
My phone is about two years old now and I thought I needed a new battery. Instead I picked up a new samsung charger (the one that ships with the Note 4). I don't know if it's because of the increased voltage output but my phone seems to hold a charge better - and charge faster!
kipliq said:
Hi, Getting close to 2 years on my gs4. The battery doesn't seem to hold the charge like before. How often do we need to replace the battery?
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For me & my phone habits, it's usually after 15 months. On my N5, I put in a fresh battery after 18 months.
Sent from my SPH-L720
In general, the deeper you discharge the battery, the fewer times the battery will recharge. If you use your phone heavily, and always drain to 0% almost daily, that will result in a battery that will stop holding it's charge very quickly. However, if you don't use your phone heavily, or have access to a charger throughout the day to top up your battery long before it crosses 50%, then it will typically last a lot longer.
The fact that you notice a significant loss in battery performance, most likely means that the battery has either lost significant life, or at least significant enough to how you use your phone.
You may try the "Battery Calibration" app from google play store.
it's free but require root access.
This app remove the batterystats.bin system file. The OS generates a new clean batterystats file soon.
It's like you're refreshing your battery...
Calibration needs to be done after flashing a new ROM, but you can calibrate any time you think your battery is miscalibrated.
I use this app myself and it's great...
hope this help..
Best Regards,
@Lessismooore: https://plus.google.com/105051985738280261832/posts/FV3LVtdVxPT
Read the last paragraph. Battery calibration apps don't do anything except generate a placebo effect and screw up your battery stats. To maximize battery life, you want to examine what processes are running and kill the ones you don't want to run, using Greenify or Autostarts.
I decided to replace battery after 15 month of intense use.
My S4 had the same problem. I reset the battery stats, and after that it works great now. Battery easily lasts for a full day.
Here's how you do it.
*Let the battery discharge while doing normal routine stuff, until it switches off.
*Turn it on again and use it some more till it switches off again. Repeat, until it wont turn on any longer.
* Remove the battery and hold the power key for 30 secs or so with battery removed(I do it for upto a minute)
* Install the battery and close it up and now connect the charger.
Let the battery charge to 100% WITHOUT turning the phone on.
*After 100% is reached, turn the device on and disconnect the cable and use it as you normally do.
DO NOT RECHARGE in between and let it discharge completely or till the point, it'll just be about to turn off, then connect the charger.
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sohail99 said:
My S4 had the same problem. I reset the battery stats, and after that it works great now. Battery easily lasts for a full day.
Here's how you do it.
*Let the battery discharge while doing normal routine stuff, until it switches off.
*Turn it on again and use it some more till it switches off again. Repeat, until it wont turn on any longer.
* Remove the battery and hold the power key for 30 secs or so with battery removed(I do it for upto a minute)
* Install the battery and close it up and now connect the charger.
Let the battery charge to 100% WITHOUT turning the phone on.
*After 100% is reached, turn the device on and disconnect the cable and use it as you normally do.
DO NOT RECHARGE in between and let it discharge completely or till the point, it'll just be about to turn off, then connect the charger.
Sent from my GT-I9500 using Tapatalk
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I've repeted this steps three times and it looked great!
I more than a year... 1 hour of screen
Calibrate your battery. . If you don't have the app .. charge til you get to 100% unplug charger then turn off phone, plug in charger while phone is off. . Charge until it's green. . Unplug and turn your phone on. . Repeat that process 1 more time and it will work
I just bought a new OEM battery from Samsung. What should i do first? Charge it with phone turned off to full then discharge it to 0 and then charge again to max? Do this one time or 3? maybe there is some article about what u should or shouldn't do when u get a brand new battery?
Hello sohail
My s4 has only average battery timing. Which is not enough for me. Plz suggest me some solution.