Anyone know of a tweak to force your phone to not shutdown when the battery is low?

Anyone know of a tweak to force your phone to not shutdown when the battery is low?

I would really like this tweak as when my phone shutsdown i can still go into recovery and run that for around 30 minutes. I have tried to callibrate my battery, but this isn't enough.

Thanks, Alfie
Running S6 Deoxed rom.

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