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[Q] Why is the battery percentage so inconsistent?

Does anybody know why is the battery percentage so inconsistent?
I am just switched over to the sensation from the HD2. I have had the phone for about a week now. The first couple of nights I turned off my phone because it was around 20% battery life. The next morning when I turned on my phone the battery percentage was at 33%. I have done a couple of other times and the percentage goes up about 10% after a day of use. My wife's sensation does this also. I am using the stock battery, and I am not using any roms or mods. I am monitoring with battery monitor widget and current widget to make sure it is not the app.
Anyone else notice this?

battery monitor widget is not anything official from HTC.
I think that is your problem.
I have never seen my % go from 20% to 30% without charging it.

I thought about that also, but I will turn the phone off with the battery icon at the top yellow color, and then in the morning it will be green. So the widgets would have no effect on that. Like I said I have noticed this on both phones.

I have also had my batter meter go up after a reboot. Not sure why... The meter works good enough to give me an estimate or battery life. Good enough for me.
Sent from my HTC Sensation 4G using Tapatalk

I am not worried about it, but is kind of interesting how power cycling shows the correct battery. It must be some kind of glitch in the OS or something.

yeah, it happens to me too! For example, after a full charge the % stays on 100% for about 8-9 hours and after that it starts to decrease. About the % growing, it happened to me two times... maybe it's about calibration...

[Q] Weird Battery Problem??

This happened twice today..
For e.g: If my battery is showing 15% and then i restart my phone it suddenly shows 50% remaining..
Am using Battery Indicator to show me in % how much is remaining (though even the htc battery shows the difference in this case)
Any idea why is this happening and how to solve this??
Oh and how to stop the: Show Me app?? Keeps restarting and sucking my battery..

Could someone please help me out here with this weird problem??
It keeps happening everytime i restart my Sensation..

Try wiping your battery stats from CWM.Then charge battery fully>drain fully>then charge again it should be calibrated. oh and use startup cleaner in the market.

arturohernandez said:
Try wiping your battery stats from CWM.Then charge battery fully>drain fully>then charge again it should be calibrated. oh and use startup cleaner in the market.
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Its a 1 day old Sensation.. Havent rooted it yet..

I saw the same with my mine. I allowed the battery to drain until the phone shut off and recharged over night to 100%. I did that for a few cycles and mine seems fine now.

The battery % indicators only show what the phone software *thinks* it currently is.
The Sensation battery ranges from approx 4200mV (full) to 3000mV (empty).
The problem is sometimes the phone thinks those numbers are different. E.g. when you turn on your phone for the very first time, or flash a new ROM, if your battery was half full at 3700mV the phone would then think that was the 100% level (why they say charge a battery fully for a long time before turning your phone on for the first time).
This leads to various funnies such as a battery seemingly staying full for ages (the phone thinks 100% is much less than 4200mV so until you drop to the phones level your battery %age doesn't go down), and seemingly rapid drains where you end up with less than 10% left - but probably find in reality if you left it your battery would go on for ages at 0%.
Over time it learns, but best to wipe your stats after a long charge so it knows that 4200mV is 100%, and then don't charge your phone again until it physically runs out of juice so it knows what is 0%.
Another useful tip is to install the free BatteryLife widget from CurveFish from the market. That shows you the current voltage level as well as %age, so armed with the knowledge that full = approx 4200mV and empty = approx 3000mV you get an exact idea of how much you have left.

Mine does the same thing even draining/charging for few cycles
Sent from my HTC Sensation Z710e using XDA App

chrisw99 said:
The battery % indicators only show what the phone software *thinks* it currently is.
The Sensation battery ranges from approx 4200mV (full) to 3000mV (empty).
The problem is sometimes the phone thinks those numbers are different. E.g. when you turn on your phone for the very first time, or flash a new ROM, if your battery was half full at 3700mV the phone would then think that was the 100% level (why they say charge a battery fully for a long time before turning your phone on for the first time).
This leads to various funnies such as a battery seemingly staying full for ages (the phone thinks 100% is much less than 4200mV so until you drop to the phones level your battery %age doesn't go down), and seemingly rapid drains where you end up with less than 10% left - but probably find in reality if you left it your battery would go on for ages at 0%.
Over time it learns, but best to wipe your stats after a long charge so it knows that 4200mV is 100%, and then don't charge your phone again until it physically runs out of juice so it knows what is 0%.
Another useful tip is to install the free BatteryLife widget from CurveFish from the market. That shows you the current voltage level as well as %age, so armed with the knowledge that full = approx 4200mV and empty = approx 3000mV you get an exact idea of how much you have left.
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Yeah... I went to sleep with 100% charged and when i woke up it was yet 100% charged.. And when i check the battery stats it shows 0s but i was asleep for 8 hours.. Any way to solve this on an unrooted phone?

I had the same problem today too! Thought my battery was kicking ass...turns out it was 18% when I restarted my phone
sent from my s-off sensation!

byrdman164 said:
I had the same problem today too! Thought my battery was kicking ass...turns out it was 18% when I restarted my phone
sent from my s-off sensation!
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What did you do about it?

Anyone know what to do about this to an unrooted phone??
Or is this a defective piece and i should get a replacement??

Mines has done the same but I haven't had the chance to calibrate it yet to know if that'll help. It has helped on previous phones. I don't think your device is defective though.

Aspeds2989 said:
Mines has done the same but I haven't had the chance to calibrate it yet to know if that'll help. It has helped on previous phones. I don't think your device is defective though.
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How do you calibrate an unrooted device??

I think it calibrates itself after a few charge/discharge cycles. Always charge it a lot longer than when the green light comes on (because if the phone thinks the 100% level is a lot lower than it should be, that green light may come on early), and for the first couple of charges let it dry out rather than topping up.
And install that BatteryLife widget from CurveFish, then you can look at the voltage. 4200mV = full, 3000mv = empty, regardless of what your battery %age says. Mine currently says 51% and 3753mV.

Having the same problem here, restarted my phone afew times now and the battery % keeps going up, then dropping rapidly! :s
Sent from my HTC Sensation Z710e using XDA Premium App

Going nuts!! Battery...

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....
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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.
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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
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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

[Q] A couple of noob questions

I'm new to this phone, and still learning my way around a bit. A couple of items that I'm wondering about...
1) When my battery starts getting low, and it goes into power saver mode, there is a button I can hit that says "Battery Info." It seems to almost be like the battery history in Spare Parts, which is nice, since Spare Parts doesn't work. However, I'm not absolutely certain how to interpret this data. Is it telling me what percent of my battery drain has been due to certain apps? Or is it telling me what percent of the time they have been running? Also, how can I get to this information when I'm not in power saver mode?
2) On a related note, what is considered to be typical battery life for this phone? I know that's a completely loaded question and differs by use. But maybe like a min/max range? And what things can I tweak to maximize battery life?
Many thanks.

flu13 said:
I'm new to this phone, and still learning my way around a bit. A couple of items that I'm wondering about...
1) When my battery starts getting low, and it goes into power saver mode, there is a button I can hit that says "Battery Info." It seems to almost be like the battery history in Spare Parts, which is nice, since Spare Parts doesn't work. However, I'm not absolutely certain how to interpret this data. Is it telling me what percent of my battery drain has been due to certain apps? Or is it telling me what percent of the time they have been running? Also, how can I get to this information when I'm not in power saver mode?
2) On a related note, what is considered to be typical battery life for this phone? I know that's a completely loaded question and differs by use. But maybe like a min/max range? And what things can I tweak to maximize battery life?
Many thanks.
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Click to collapse
1) to get into the battery stats go into Menu*Settings*About Phone*Battery*Battery Use* and its my understanding that the percentage shown for each app/task shows how much of a percentage of the battery that has been used was used by said task so right now my display shows 58% and im at 36% battery so 58% of the used battery was due to my display, then if i click on display it shows a time for how long an app/task has been active, so in my case phone has been on for 9 hours and display has been used for 4 hours i hope that helps
2)Battery life on the Shift is pretty solid im still at 35% and my phone hasnt charged since yesterday at about 6pm and i used it till maybe 2 am went to bed no charge woke up used the phone for about 30 minutes and have been on tapatalk and gtalk, facebook...the longest standyby i have had with my shift is 48 hours of very light usage but i normally get about 8-10 hours of extreme usage, so if your not a power user you should see some amazing battery life
Sent from my Supreme Shift using Tapatalk

Awesome. Thanks. That battery history thing blows Spare Parts out of the water.

[Q] New Battery Calibration

I bought a new battery for my oneplus one from vifocal.com and I think its original battery. The battery seems to be very poor. I use my phone for 1,5 hours from which the screen is on for about 1 hour and the battery has drained down to 50%. Yesterday as my phone went to zero I turned it on in recovery mode to keep the screen on as long as possible to really kill the battery and the screen stayed on for at least 2 hours. How is that possible if the battery indicator shows already 0%. Anyways I believe the battery drops down to 0% even really there is a lot of juice in the battery. Is there anyway to calibrate the battery so it would show the correct percentage and is there anyway to tell how big is the battery really? whether I got a fake one or not. thanks

andresantos said:
I bought a new battery for my oneplus one from vifocal.com and I think its original battery. The battery seems to be very poor. I use my phone for 1,5 hours from which the screen is on for about 1 hour and the battery has drained down to 50%. Yesterday as my phone went to zero I turned it on in recovery mode to keep the screen on as long as possible to really kill the battery and the screen stayed on for at least 2 hours. How is that possible if the battery indicator shows already 0%. Anyways I believe the battery drops down to 0% even really there is a lot of juice in the battery. Is there anyway to calibrate the battery so it would show the correct percentage and is there anyway to tell how big is the battery really? whether I got a fake one or not. thanks
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I've had an opposite issue few times - phone was shutting down while it was show that it still had battery (20% was the worst case). I fixed it by discrharging fully, then letting the phone charge all trough the night. this was the recommendation that I found on OPO forums from someone from their team.