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I have an android device running Lollipop 5.1 (the brand is local in my country) which has a battery draining problem in stand by mode.

  • It drains about 10% of battery every hour or so without having any custom launcher

  • The battery capacity is 1850 mAh

  • WiFi is turned off. I only use one SIM

  • I have been monitoring the phone since I bought it, I haven't used it to call someone and my network signal is completely stable and the only time spent on screen is to check battery percentage.

Should I be worried or is it okay for such a device to consume this much battery in stand by mode?

Note: I tried installing launchers which seem to be causing more battery consumption in stand-by. I uninstalled all third party battery saver apps and turned android integrated power saver on.I also tried factory resetting the phone twice.

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  • Did you check Battery section under Settings? See what apps are consuming so much battery. – SarpSTA Feb 22 '16 at 21:45
  • I've uploaded a picture.See if it helps you to get the idea...I can't customize as it drains more battery in stand by – Akib Ahmed Ishan Feb 22 '16 at 22:09
  • You can try checking if the behaviour repeats in safe mode. If it does, more likely it is battery issue. If not, it could be driver corruption issue and re-flashing ROM could fix – beeshyams Feb 23 '16 at 5:42
  • @beshyams I have a few days of replacement warranty left and don't know if reflashing would void it.....I forgot to mention that the phone has an integrated launcher....but it's very similar to stock android. – Akib Ahmed Ishan Feb 23 '16 at 6:54
  • In which case replacing the battery would eliminate one problem (worst case) or solve the problem (best case). Suggest you get replacement done within warranty period. Current behaviour is definitely NOT normal – beeshyams Feb 23 '16 at 7:13
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Sounds like your battery is trash. Sometimes you buy a new phone and get a bad battery.

Take it back where you bought it and tell them the battery is bad. They should give you a new battery free of charge.

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