I looked at the hardware compatibility list, but there is no mention for a requirement of a battery monitoring functionality in the hardware. But, all phones display the battery level with the BatteryManager API.

  • Why are you asking this question? Are you planning to create a hardware (or a custom ROM) that doesn't show battery information? – geffchang Jan 21 '14 at 4:52

As far as I know, there is no particular requirement.

You will get battery monitoring details when you send particular commands to the battery.

That is, the battery itself will have hardware for that.

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