I'be been working on some Chinese (bit crappy) device, with own system, that had one wonderful (at least for me) feature. When constantly powered-up (plugged to power adapter) it could work without the battery inside.

Is there any Android-based phone or device that does the same? Or the only option here is to keep battery inside, keep it powered up all the time (I have some reasons for that) and replace battery quite often, since it will be charging and discharging it the same time (will it), thus lowering its life-span.

1 Answer 1


Don't you worry. LiIo batteries are not that concerned about that. What really lowers their life span are "complete discharges", not frequent "trickle-charging". It's even recommended to charge them as soon/often as possible (and practicable, of course).

See e.g. Wikipedia: Lithium Ion batteries for details, and also take a look at our question Does constant charging harm my Android cellphone? and its answers.

  • Perfect answer! Thank you. The only thing that concerns me was, that mentioned previous crappy Chinese phone was also powered by LiIo battery and even so, user guide advice to remove battery, if device is constantly powered via charger. But I assume, that this could be some form of phone's manufacturer disinformation. Thank you once again.
    – trejder
    Oct 21, 2013 at 13:06
  • 1
    They always want to be on the "safe side". If it was for the manufacturers, only their butter fits on their bread – and nevermind standards ;)
    – Izzy
    Oct 21, 2013 at 16:34

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