4S 20A 18650 Lithium Battery Protection Board

The 4S 20A 18650 Lithium Battery Protection Board is a reliable BMS (Battery Management System) designed to protect 4-series lithium-ion battery packs made from 18650 cells. It supports a nominal voltage of 14.8V and a maximum charging voltage of 16.8V, making it suitable for a wide range of battery-powered applications.

This protection board offers essential safety features, including overcharge protection, over-discharge protection, and overcurrent protection, which help prevent battery damage, overheating, and short-circuit-related failures. By maintaining safe operating limits, the board extends battery life and improves overall reliability.