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Random severe battery drain

I have the 2750 mah battery in my phone. Bamf 1.5 with the new radio. 4 hours off the charger and it is at 65 percent. Any idea? All syncing is off, screen at 40%, no Widgets other than fancy widget on. This is nuts. I can't figure out what's going on.
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Have you wiped battery stats?

I have the same issue. One day my phone goes 20+ hrs on a charge, the next day it drains 40% in 3 hrs, with no significant change in usage. I've swapped kernels, wiped battery stats, kill nonessential apps & services, and I still can't find the culprit. But my extra battery is in en route, so I'm not too concerned

No. Haven't wiped battery stats yet. I heard bad things about wiping the stats on the TB.
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I get the same thing every few days and it drives me crazy. You can instal a current widget and it'll show you what the draw is. Normall idle I'm at 38mA. But in these bouts of mystery drain it'll go up to 250-300mA for no reason. And this is with wifi/4G off too. But once I turn it on airplane mode the current goes back to normal until I take it off airplanel. So it's something to do with the regular cell radio...

Its ridiculous. Its stuff like this that kind of make me wish HTC held this back another few weeks.
Sent from my ADR6400L using XDA Premium App

yeah i have this issue also. today Google Voice had partial waked my phone to 50% battery. i don't get it.

I have seen the same thing, anyone also notice the battery cooking when the drain is going on. I usually reboot the phone thinking an app is hung just banging on the system, sometimes it works other times not so much.

+1 i'm seeing this as well. when its happening the phone gets really hot. i hope this gets figured out.

chrisjm00 said:
I have the 2750 mah battery in my phone. Bamf 1.5 with the new radio. 4 hours off the charger and it is at 65 percent. Any idea? All syncing is off, screen at 40%, no Widgets other than fancy widget on. This is nuts. I can't figure out what's going on.
Sent from my ADR6400L using XDA Premium App
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I had this problem on the BAMF 1.5 ROM + kernel combination. I recently switched to Imoseyon lean kernel (http://forum.xda-developers.com/showthread.php?t=1021404) and now the battery life is amazing. I've been off the charger since about 12:33am (CST) and it is now 12:28pm (CST) and I'm at 52% with average use.
On battery calibration. I strongly recommend doing this if when you restart your phone you lose drastic percentages. I was losing 11% with a restart indicating that it wasn't reporting accurate battery status. I used the battery calibration tool which is on the market. Now here is the kicker that i learned from Droid Incredible days, you have to fully charge the battery. That does not mean wait till your phone reports 100% that means turn off the device and charge until the notification led turns green and start up the phone and let it charge to the light goes green again then calibrate. Then disconnect and use til completely dead without plugging it in AT ALL!! This has worked for me.
Hope this helps everyone.

i really hope this thread doesnt die since this is a real problem apparently quite a few people have....

I didn't read all the post but after flashing a radio you have to wait a couple days yoga week before the battery can recalibrate.
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Battery monitor is showing 1350mAh
Wondering if I have a bad battery or maybe that's how it's read? Shouldn't it read 1400 instead of 1350?

I have this problem too... Its because something is not letting the kernal throttle down. Check setcpu and you will see it stuck on the Max speed. The smartass gov is most suspect because it doesn't use profiles

It's just the way it is for now. For the last 2 days I've been getting horrible battery life. All of a sudden things changed today. Battery drain is between 30 & 38 every 60 seconds. 2 days straight of 250-300 drove me frigging crazy.
Thunderbolt - BAMF Remix 1.5

Yeah I have these random cases too. However a reboot fixes the issue. Besides faster than normal battery drain, you should notice higher battery temperature.
I believe it's an application issue, something that we can't tell yet.
Honestly I have high hopes for the TBolt down the road. When Evo first came out, we were experiencing similar problems too. Given time the devs were able to get them solved. This is why I prefer HTC and XDA.

I got great life today. Yesterday was terrible. I'm still getting the large drop in percentages on reboot, but battery life is draining slowly. Something I was wondering is if we lose 15 percent on a drop, does that mean the battery is actually 15 percent lower when I restart? So if my battery is at 60 percent in my task bar, is it actually 45 percent? And if that is the case, what happens when it drops down to 10 percent on my taskbar? In theory that would mean the battery had 0% life. Now the strange part of that is I'm still losing battery from 10% down to 0%, once it hits 0 it shuts off, however, if I restart the phone at 8 percent it won't reboot. So why will the phone stay running at 8% battery, but it will not boot back up after the restart. Its been a long day so sorry if I'm rambling or not making sense. But you know what I'm getting at.
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D3TH METAL said:
Wondering if I have a bad battery or maybe that's how it's read? Shouldn't it read 1400 instead of 1350?
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Just the way it is, the thunderbolt technically has a 1350 mAh stock battery.

I saw a thread on another site that says, if you recalibrate your battery once a month it will help... Full charge... Unplug.. reboot...3 times only has helped mine.... Now I Only loose 2-3% of battery per hr...
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RogerPodacter said:
Just the way it is, the thunderbolt technically has a 1350 mAh stock battery.
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oh ok. Thanks

Battery over night?

I'm curious I recalibrated my battery to last longer I usually lost around 7-10 percent over night. Now after calibration I only lost 3% and this is what my consumtion was and was curious is this normal or good. I'm getting 43% cell standby, 40 phone idle, 15% display and 2% OS. I was going to post a pic but is not letting me right now.
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With my stock rom, I usually use about 3% over-night when the phone is shut-off.
So, either the stock batteries suck, or "off" doesn't really mean "off." I'm assuming the latter, since we have to pull the darn battery to get a true reset.

3% overnight sounds reasonable. Same here.
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zuriken said:
With my stock rom, I usually use about 3% over-night when the phone is shut-off.
So, either the stock batteries suck, or "off" doesn't really mean "off." I'm assuming the latter, since we have to pull the darn battery to get a true reset.
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Maybe you have fast boot on. Or it sucks up a lot of juice just turning it on
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codyperez86 said:
Maybe you have fast boot on....
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Sure do (enabled by default). I'll switch it off tonight and see if the percentage changes in the morning.

so is fast boot something we want on or off?

I look at fast boot as hiberateing. Take that off and I believe your phone will actually shut down all the way. Fast boot is fast boot. After shutting it off and turning it back on and starts up quicker. Sounds like something that would suck a little bit of battery life over night.
Sent from my Inspire 4G using XDA Premium App

With fastboot disabled and the phone shut off, you should see 0% to maybe 1% battery drain overnight.

henrybravo said:
With fastboot disabled and the phone shut off, you should see 0% to maybe 1% battery drain overnight.
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Yeah I think its from powering down and back up that's it.
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To recalibrate it I just powered up to 100% powerdown, unplug chord reboot into recovery go to advance and go to wipe battery bin. Reboot amd you should have a more accurate battery %. You should 4.2V at 100%
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3% is more than reasonable.
I lose like 1% per ~2 hours standby with active 3G data connection, and gmails pushing emails.

Battery reduces 20% in standby overnight, is this normal?

My phone was reduced from 100 to 82 in just around 6 hours. I had data/wifi turned off as well. Is anyone else experiencing this?
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teobeo94 said:
My phone was reduced from 100 to 82 in just around 6 hours. I had data/wifi turned off as well. Is anyone else experiencing this?
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Nope. With data/wifi turned on (data auto-off since Wifi is active), I lose at most 2% overnight. With airplane mode on OR data/wifi off, you should be seeing practically 0% loss.
Check your battery usage and see what's eating up the battery. Sounds like an rogue app/process that's wasting cycles or is out of control.
One of the best things about this phone is its standby life, as it seems to sip battery juice very lightly.

My battery was still 100% after I woke up today.
Nevertheless it dropped very quickly after using the phone, about 11% in 10-15 min but I assume that's completely normal after 8 hours standby.

I have a live wallpaper but it shouldn't work when is screen off. I also have setcpu set so that is practically doing nothing when the screen is off. The live wallpaper cost only 2% of my battery but standby showed 20%. I have no idea why it uses much in standby...
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teobeo94 said:
I have a live wallpaper but it shouldn't work when is screen off. I also have setcpu set so that is practically doing nothing when the screen is off. The live wallpaper cost only 2% of my battery but standby showed 20%. I have no idea why it uses much in standby...
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That means that of the whatever % battery (out of 100%) that you've used, 20% of that drain was due to standby. That's not necessarily bad. So if you have 50% charge left, then it means that (50% x .2)% of your drain was from standby. My cell standby has currently used 23% of my current drain percentage. Since your phone is often left in the sleep/not-active state, then a large % of battery drain happens in standby.
Battery usage on Android is frequently misunderstood. And keep in mind that the 2% from the LWP you used is because it's only displayed when you're on the home screen. Otherwise, it remains dormant/paused.

that's strange that you are having that much usage in standby.. i have been getting a solid day and a half out of my battery and it doesnt really use any battery in standby.. there has to be an app of some sort that is sucking the battery or still running.. i always at bedtime though clear the cache thru storage in the settings menu and end all tasks in the task manager and close all the windows/programs with the far right virtual button on the bottom of the screen.. I am a bit OCD but heck if its working why stop..lol

Area with poor cell reception? If you were in plane mode it is an app for sure.
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My battery stayed the same overnight. That is with a x2 battery saver which switches off data when the phone is not used and only allows it as special intervals. I have set at 10mins intervals though which is not a huge saver.
I'm doing a test from yesterday to see how long the phone will last with my use. So far from last night im at 39% and when I first turned the phone on it was at 47% from yesterday.
sent with HTC1S

I would have to agree with everyone else. I only experience 1% loss at most times overnight. Best standby battery life i've ever gotten on a HTC phone.

I actually have full bars at home so I don't think that's why. Maybe it's because it's a new battery so I'll try charging it a couple more cycles.

Lost 8% tonight (86/78). Saw this morning that the signal was not perfect. But wifi went off during the night. That should not happen. Maybe my custom rom is switching off wifi on sleep...
Gesendet von meinem HTC One S mit Tapatalk 2

teobeo94 said:
I actually have full bars at home so I don't think that's why. Maybe it's because it's a new battery so I'll try charging it a couple more cycles.
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It's either a faulty battery or a rogue app. Shouldn't happen to a new battery either.
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Use better battery stats to diagnose rogue apps.

vasp3690 said:
My battery stayed the same overnight. That is with a x2 battery saver which switches off data when the phone is not used and only allows it as special intervals. I have set at 10mins intervals though which is not a huge saver.
I'm doing a test from yesterday to see how long the phone will last with my use. So far from last night im at 39% and when I first turned the phone on it was at 47% from yesterday.
sent with HTC1S
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Right.
Battery lasted up to 2:30pm being off the plug from 7 am the previous morning. So a total of 31hours.
That is with tapatalk, a bit of web browsing, a bit of WiFi and google store updating, 2 short phone calls.
The app. 2x was running on mild battery saving,mainly by cutting the data periodically when the phone is idling.
I must say that this is really good and the phone took quite a while to go from 15% to 4% after which it switched off before I noticed it again.
sent with HTC1S

My battery is weird

My battery has been acting funny lately. Some nights I go to bed with the battery at 100% and when I wake up it's still at 100%. Other nights it loses 10-15% (in about 9 hours). I don't have anything running in the background that I'm aware of that would cause such a discrepancy. A couple nights ago the battery lost 10-12% overnight with the phone turned off! Still the phone was apparently awake all night. How is that possible?
I'm too lazy right now to post a screenshot since xda only accepts urls.

The same here after flashing a new custom rom.
After turning on the phone and making this screenshot percentage immediately went down for 10 to 15 %.
You can check things like that pretty good with apps like Battery Monitor Widget.

Did both of you try to recalibrate the battery?

Do a full cycle charge to 100% use it till 10% then wipe battery stats and charge phone to 100 again
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k1llacanon said:
Do a full cycle charge to 100% use it till 10% then wipe battery stats and charge phone to 100 again
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Why would you only go down to 10? Might as well drain the battery completely. It's not going to damage anything unless you let it sit around dead for weeks, possibly even months.

It's never good to completely drain a lion battery
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k1llacanon said:
It's never good to completely drain a lion battery
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Actually, for a proper cell calibration, it is best to drain the battery completely. Many agree and I have never heard a dev say that draining it dead hurts the battery. It is essential for each cell to be empty in order to properly and fully charge a li-ion battery (without this, % figures will be non-calibrated over time). Just like it is of good practice to let the device charge and extra hour or so once the indicator light turns green (to ensure 100% after trickle mode).

Rule 1: Battery calibration does absolutely nothing. Deleting battery stats will never, ever do a single thing to help your phone's battery calibration.
Rule 2: Standby drain is almost always because of partial wakelock or kernel wakelock. Install Betterbatterystats to figure out what the issue is.
Rule 3: If your phone is in a good reception area and still experiences heavy standby drain, charge the phone until it reaches max voltage (4.2 or 4.3), then use it until it shuts off, then go to hboot until it shuts off, then charge to full again, preferably with the phone off. Wait about an hour after you first see the green light to turn it on.
After that, enjoy. If you still have issues, I would suggest backing up everything and attempting an ruu flash with the battery at 100%.

I failed to mention it, but I haven't rooted or installed a custom rom.
I'll try better battery stats to see what I can find out with that.

Extreme battery drain

My girlfriend has the htc sensation, and lately the battery life has been completely crap, to the point where sometimes it won't even charge on the wall outlet, displaying the message that the phone is using too much current to charge. This morning the phone was completely dead and when plugged up, the orange light would flash for about 10 minutes before it would boot. The other day I noticed the notification light flashing orange and green real fast. The brightness is almost always all the way down, and she uses ds battery saver through the day. With very light usage, just texting here and there, the phone is completely dead within about 6 hours or so. I can't seem to find any rogue app or anything that would kill the phone thus fast, so I figured I would come to the people that use this phone every day. Is the battery life really this bad on this phone? Or maybe a hidden app or faulty battery? Any help is appreciated greatly.
Sent from my MB865 using xda app-developers app

Neontc said:
My girlfriend has the htc sensation, and lately the battery life has been completely crap, to the point where sometimes it won't even charge on the wall outlet, displaying the message that the phone is using too much current to charge. This morning the phone was completely dead and when plugged up, the orange light would flash for about 10 minutes before it would boot. The other day I noticed the notification light flashing orange and green real fast. The brightness is almost always all the way down, and she uses ds battery saver through the day. With very light usage, just texting here and there, the phone is completely dead within about 6 hours or so. I can't seem to find any rogue app or anything that would kill the phone thus fast, so I figured I would come to the people that use this phone every day. Is the battery life really this bad on this phone? Or maybe a hidden app or faulty battery? Any help is appreciated greatly.
Sent from my MB865 using xda app-developers app
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which rom are you currently running...
---------- Post added at 10:40 AM ---------- Previous post was at 10:21 AM ----------
Neontc said:
My girlfriend has the htc sensation, and lately the battery life has been completely crap, to the point where sometimes it won't even charge on the wall outlet, displaying the message that the phone is using too much current to charge. This morning the phone was completely dead and when plugged up, the orange light would flash for about 10 minutes before it would boot. The other day I noticed the notification light flashing orange and green real fast. The brightness is almost always all the way down, and she uses ds battery saver through the day. With very light usage, just texting here and there, the phone is completely dead within about 6 hours or so. I can't seem to find any rogue app or anything that would kill the phone thus fast, so I figured I would come to the people that use this phone every day. Is the battery life really this bad on this phone? Or maybe a hidden app or faulty battery? Any help is appreciated greatly.
Sent from my MB865 using xda app-developers app
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flash the latest faux kernel on your sensation,it might resolve your problem...

How old is the phone?

Neontc said:
My girlfriend has the htc sensation, and lately the battery life has been completely crap, to the point where sometimes it won't even charge on the wall outlet, displaying the message that the phone is using too much current to charge. This morning the phone was completely dead and when plugged up, the orange light would flash for about 10 minutes before it would boot. The other day I noticed the notification light flashing orange and green real fast. The brightness is almost always all the way down, and she uses ds battery saver through the day. With very light usage, just texting here and there, the phone is completely dead within about 6 hours or so. I can't seem to find any rogue app or anything that would kill the phone thus fast, so I figured I would come to the people that use this phone every day. Is the battery life really this bad on this phone? Or maybe a hidden app or faulty battery? Any help is appreciated greatly.
Sent from my MB865 using xda app-developers app
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Click to collapse
Hi,
Try a new battery.

Neontc said:
My girlfriend has the htc sensation, and lately the battery life has been completely crap, to the point where sometimes it won't even charge on the wall outlet, displaying the message that the phone is using too much current to charge. This morning the phone was completely dead and when plugged up, the orange light would flash for about 10 minutes before it would boot. The other day I noticed the notification light flashing orange and green real fast. The brightness is almost always all the way down, and she uses ds battery saver through the day. With very light usage, just texting here and there, the phone is completely dead within about 6 hours or so. I can't seem to find any rogue app or anything that would kill the phone thus fast, so I figured I would come to the people that use this phone every day. Is the battery life really this bad on this phone? Or maybe a hidden app or faulty battery? Any help is appreciated greatly.
Sent from my MB865 using xda app-developers app
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Consider these five things:
No battery saver, task killer or memory freeing apps. Just don't use them. They're bad. They help drain your battery not save it.
Don't reboot the phone. You'll see the battery fall from 50% to 40% on a single reboot.
Turn off the phone. Charge over-night and if possible. Leave it without using it to discharge until the battery is empty or roughly 5%. Then charge again until full.
Consider disabling GPS, bluetooth, WiFi tethering and mobile data if possible. Don't use auto brightness.
Consider a replacement battery. Anker is an excellent replacement.

She uses stock ics, unrooted. bluetooth is always off, gps is almost always off, never uses auto brightness. Phone is always charged overnight. It is almost 2 years old, which leads me to believe it may be the battery, so Ill see if there are any cheapo ebay batteries to use till she gets an upgrade.

Neontc said:
She uses stock ics, unrooted. bluetooth is always off, gps is almost always off, never uses auto brightness. Phone is always charged overnight. It is almost 2 years old, which leads me to believe it may be the battery, so Ill see if there are any cheapo ebay batteries to use till she gets an upgrade.
Click to expand...
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also consider flashing viper ROM,if you want to...it has the great bettery life