Features • Input Supply voltage: 3.7 ~ 5.5V • Charging Current: 1A (max) • Output voltage: 5V • Output Current:

1S Li-ion 18650 Lithium Battery Charger Protection Board 4.2V 4A Specification Maximum sustained discharge current:4A size:3.7x30mm Package included 1 x

DIGITAL AC VOLTMETER GREEN Specification Mounting hole 20mm Voltage AC 60-500V Dimensions: 28x50mm Weight: 19 g Current: 18 mA Accuracy:

BMS stands for the battery management system. This is a BMS with a 22V voltage rating to charge 6 cells