Dealikee 4PCS 4S 20A 14.8V Lithium for 18650 Battery BMS PCM Protection PCB Board Module 16.8V with Overcharge Over Discharge Short Circuit

High Quality: High-accuracy voltage detection circuit, fine workmanship and durable. Great Design: Compact size and lightweight, disconnect load self- recovery. High Efficiency: Low internal resistance, high power MOS. MOS transistor can control the battery charge and discharge, low standby current consumption. Multiple Protection: Over-discharge protection, overcurrent protection, overcharge protection; Short circuit protection; High charge and discharge current; Compact size and lightweight. Widely Applications: Use for variety of capacities and various shapes 3.7V lithium batteries, Massager battery pack, LED light backup power supply, solar street light battery pack, monitor standby power supply, etc.