Battery drains and charges fast

[Hawkels]

Hi, I have 2 batteries for my phone, both of which show the exact same problems. The battery drains very quickly on standby (8 hours or so). It drains when off and if I turn off my phone and remove the battery for about an hour, it loses 10-20% of the battery. A lot of people told me it had something to do with the wakelock or some app but that's not what it is. Wakelock is fine and with stock apps only it still drains way to quickly. Airplane mode doesn't help either. It charges exactly as fast as it drains too.

 

[meyerweb#CB]

Are you saying the battery loses 10-20% of it's charge when not in the phone (...remove the battery for about an hour, it loses 10-20% of the battery...)? If so, that has nothing to do with the phone at all, it's a defective battery.

When you say "...it drains when off" do you mean with the screen off, or the phone powered completely off (hold the power button down until a menu appears, then select Power Off)? As with above, if the battery is draining when the phone is completely turned powered down, the battery is defective.

How do you know "wakelock is fine"? What have you done to analyze that? Stock apps, depending on how they are configured, can run in the background, and access radios and data in the background, causing battery drain.

You're going to have to provide some information if you want us to try to help. Charge the battery to 100% (not 85%, not 95%, not 99% - it has to be fully charged), and unplug the charger from the phone. Use the phone normally, and when the battery get down to 50% or less do three screen captures: First, go to Settings / Battery and grab that screen. Then tap on the graph, and capture that screen. Now go back to the battery screen, tap on the row that says "Screen", and do a third screen capture. Post all three here so we can begin to see what's going on.

Without some data, all anyone can do is guess.

 

[Golfdriver97]

Hi, I have 2 batteries for my phone, both of which show the exact same problems. The battery drains very quickly on standby (8 hours or so). It drains when off and if I turn off my phone and remove the battery for about an hour, it loses 10-20% of the battery. A lot of people told me it had something to do with the wakelock or some app but that's not what it is. Wakelock is fine and with stock apps only it still drains way to quickly. Airplane mode doesn't help either. It charges exactly as fast as it drains too.

Did you get any updates for your phone? New ROM? You can try clearing the cache in recovery. Sometimes that helps. Either that, or you have a rouge app or two. You can download an app called watchdog, or carat. That will help you out. Watchdog looks for rouge apps, and carat analyzes your battery consuption.

From your description alone, I would guess you have an app that is out of control, or not shutting down properly when you close it.

 

[Hawkels]

I have two batteries (and I've tested a third one) and they all show the same problems so I know the battery is not defective. When I said It drains when off[ I ment that the battery drained while the phone was completely powered off. Not on standby.
I've used apps like CPU spy and wakelock detecter to see if everything was OK and it was.
I'll take the screenshots and post them once I get them.

 

[meyerweb#CB]

If the phone is completely powered off, then no app is running, so CPU spy and WD won't show you anything about what's going on.

Do the batteries drain when they're not in the phone? IOW, if you charge a batter to 100%, immediately take it out of the phone, and put it back in a few hours later, does it still read 99-100%, or has it drained? You said in your prior post: ...remove the battery for about an hour, it loses 10-20% of the battery... If the battery is draining when it's not even in the phone, then the phone simply cannot physically be responsible for the drain. Unless you think the phone is somehow sucking power out of the battery through the air.

If the battery drains only when in the phone, and with the phone powered down, then either the battery or the phone is physically defective. No software problem can drain the battery when the phone is powered down.

 

[Hawkels]

Sorry for the delay but here are the screenshots, even with barely any screen-on time the battery drains rapidly.

 

[Jarnld]

Now I'm curious. Try charging it to 100% again, unplug it and let it sit for two hours. Use better battery stats or equivalent to screen shot your partial wakelocks, kernel wakelocks, sleep vs awake, etc etc. Maybe it's because I'm exhausted and 12 hours into a 14 hour shift at 5am, or I totally missed something. But if all the batteries are doing this then something isn't vibing. There's more details waiting in better battery stats that could pinpoint what is going on. Some app has gone rogue or something. Do you have bad wifi? Bad network coverage? Facebook syncing every 5 minutes? Have you switched from a custom ROM...meaning has your battery been calibrated and is it truly charging to 100%? Just random shots in the dark at this point.