4S 20A BMS Protection and Balancing Board with NTC Temperature Sensor Support

The 4S 20A BMS protection and balancing board is designed for safe operation, monitoring and extending the service life of lithium-ion battery packs made up of four series-connected cells (4S). The device continuously monitors the voltage of each cell, prevents overcharging and overdischarging, and protects the pack against short circuits and overcurrent. A dedicated NTC thermistor line allows timely detection of critical battery overheating during intensive use or charging and helps prevent emergencies. Features: Product type: battery control, protection and balancing board (Battery Management System / BMS) Specifications: 4S configuration (for lithium-ion battery packs with a nominal voltage of 14.8 V / maximum 16.8 V), operating current up to 20 A, pads for connecting an NTC thermistor, compact square board with power terminals Purpose: monitoring charge and discharge levels, protecting cells against overcharging, deep overdischarge, short circuits and overheating