Is it possible to charge 2 3.7v batteries in series with a TP4056, if not, what circuit would I need? Is it at all possible to charge two 3.7v li-PO batteries in
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TP4056 type C to 2A 5V Charge/Discharge integrated module 3.7V, 4.2V Module to a 3.7 Li Recharable battery, yet doesn't charge... : r/arduino
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Electric 3.7-4.2V TP4056 Battery Charging Module, Battery Type: Lithium Ion