Iconia B1 quick battery drain

Hi!

I have bought an Acer Iconia B1 tablet 2 weeks ago. I was completely satisfied with the performance, but in the last 2-3 days the battery is drained everytime very fast. I have recognized in the settings menu, that the biggest drainage of battery is due to Idle tablet. It's even higher percentage, than the screen brightness, or running Wi-Fi connection. I have tried the Watchdog Lite app from the Google Play and it showed, that the CPU usage of Idle processes is over 80%. I have resetted the Factory data in my tablet but it not even helped. Can you recommend me a solution for that problem? Because now i'm in Prague til the end of june and the tablet was bought in Slovakia, and I have all the papers, and warranty there, so service or reclamation is almost excluded. Thank you!

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drmlsengine

I have bought a b1_711 3 weeks ago and I have very similar problem. My tablet is drained fast in idle state (about 1% in 2 hours) .is battery calibration required for it. If yes how, because my tablet isnt root. please help me about this problem.

roadwarrior796

Re both these battery questions, do you close all apps when you are finished using them, do your apps update automatically or do you do it manually, have you adjusted your screen brightness right down and used the power saving backlight feature, have you turned off bluetooth and wireless to see what difference it makes ?

drmlsengine

I charged my tablet completely. Then l used (wipe date/factory reset) to reset it .after this I turned on tablet and without any other extra things, l turned off all radio accessories. But I did not see any difference. About 2 weeks ago my tablet was turned off because low charge after it I feel charge of my tablet drained very fast. I think my battery isn't calibrated. How can I do it without any root. I think if I discharge it completely and then i discharge remained charge by use of backlight of screen in recovery mode (!) After it if I charge it completely, my battery can be calibrated. Is it correct?
Thanks
By best regards

roadwarrior796

Found this re. calibrating without root, bear in mind that your tablet is still relatively new and may, battery wise, not have reached it's optimum state.

http://m.androidauthority.com/how-to-calibrate-your-devices-battery-and-achieve-longer-battery-life-43307/

drmlsengine

I explain in previous comments quick draining in battery. In my tablet when the tablet is charging,you can see changing sign in top of screen (a battery icon with a electrical sign in it) ,it is fun when my battery is charged ,near this icon we can see ''charged'' text. But the icon do not change! I do not know ''is it charging still''.

drmlsengine

Excuse me for incorrect comment!
I explained in previous comments about quick draining in battery of my iconia b1-711. In my tablet when the tablet is charging, you can see changing sign in top of screen (a battery icon with a electrical sign in it) ,but when my battery is charged ,near this icon we can see ''charged'' text. But the icon do not change! I do not know ''is it charging still''.

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