BMS Protection and Balancing Board Li-ion 4S 16.8 V 40 A with Balancer

This high-current protection and balancing board (BMS) in 4S configuration is designed for an operating voltage of up to 16.8 V and a maximum discharge current of 40 A. It is intended for the safe operation of lithium-ion battery packs used in powerful power tools (for example, screwdrivers), portable devices and DIY builds. The board continuously monitors the state of each cell, protecting the battery from overcharging, over-discharging, overcurrent and short circuits. The built-in balancing function equalizes the voltage across all four sections, preventing premature wear and capacity imbalance between the cells. Features: Product type: control, protection and balancing board (BMS) for lithium-ion batteries Specifications: 4S configuration (voltage up to 16.8 V), maximum discharge current 40 A, built-in cell balancing function (with balancing), set of powerful power MOSFET transistors Purpose: comprehensive protection of battery packs (screwdrivers, power tools and DIY builds) against overcharging, deep discharge, short circuit and voltage equalization