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1S BMS (Battery Management System) is a compact protection board designed to manage single-cell (1S) lithium-ion or lithium-polymer batteries, typically with a nominal voltage of 3.7V. It ensures safe charging and discharging by continuously monitoring battery voltage and current.
This module provides essential safety protections such as overcharge protection, over-discharge protection, overcurrent protection, and short-circuit protection, helping to prevent battery damage and extend battery lifespan. It is designed to be used with compatible 1S lithium battery charging circuits.
1S BMS is widely used in DIY battery packs, power banks, wearable electronics, portable devices, robotics, IoT applications, and electronics learning projects. Its small size and reliable operation make it suitable for students, hobbyists, and professionals working with single-cell lithium battery systems.
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