Lithium Battery Charger Module J5019, 4.2V 1A, Circuit Board
A circuit board to charge or discharge 3.7V Li-ion 18650 battery and/or Li-Po Lithium-Polymer battery, 1A max charge current & 4.2V charge voltage. Commonly labelled as a J5019 or TP4056 module. Brand-new, unused, sealed in an anti-static bag. This circuit board is a very compact module which will charge most types of (3.7V) Lithium 18650 battery or single cell Li-Po batteries from either a 4V to 8V power supply input, or from a standard 5V USB-C plug/socket input. A battery charge LED a