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Dear forum,
I couldn't find any information on the maximum capacity that I can (should?) connect to the UPS connector.
I didn't manage to find a power bank that would either wake up automatically or could be prevented from shutting down by the dummy load (max frequency, max interval). Therefore, I consider to attach 4 to 6 18650 cells to the WittyPi to power it entirely without 5V supply (~30.000 mAh).
Is there anything I need to consider?
Thank you very much!
Posted : 12/03/2025 1:16 pm
Witty Pi 4 L3V7 uses TP4056 to charge the battery, which has 1A maximum charging current. If you attach 4 to 6 units of 18650 parallelly, the charging speed will be rather low.
Posted : 12/03/2025 2:56 pm