10pcs TP4057 1A 3.7V Lithium Battery Charging Board Type C USB Ultra-Small
10 x TP4057 1A 3.7V Lithium Battery Charging Board with Protection. Up to 1A Programmable Linear Charging Current. For single 3.7V lithium battery, full 4.2V. Dual output of charging status, no battery and fault status display.