3S 60A 12.6V BMS Li-ion Lithium Battery Protection Board with Balance Charging
Keep your lithium battery packs running safely and efficiently with this 3S 60A BMS (Battery Management System) Protection Board. Designed for 3-cell series 18650 Li-ion battery configurations, this compact PCB module delivers reliable overcharge, overdischarge, overcurrent, and short-circuit protection — all in one lightweight board.
The built-in balance charging circuit ensures that each of the three battery groups is charged evenly, helping to maximize battery lifespan and maintain consistent power output over time. The MOS transistor design enables low standby current consumption, reducing unnecessary battery drain when the system is idle.
This BMS board handles a continuous discharge current of up to 40A and a continuous charge current of up to 20A, with peak working current reaching 60A under optimal heat dissipation conditions. The overcurrent threshold is set at 125A, providing robust protection for your battery system.
Compatible with a variety of 12V lithium battery applications, this board is well-suited for electric drills, garden sprayers, LED lighting systems, and other low-to-medium power DIY electronics projects. It supports connecting multiple 18650 cells in parallel within each series group, offering flexibility in battery pack design.
The board measures just 62mm × 41mm, making it easy to fit into compact battery housings. Its high-accuracy voltage detection circuit and durable construction ensure stable performance across a wide operating temperature range of -40°C to +85°C.
Note: Ensure adequate heat dissipation during high-current use. If the board becomes noticeably warm, reduce the operating current to protect the board and connected cells.
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Package Contents
1 × 3S 60A 12.6V Li-ion BMS Battery Protection Board with Balance Charging




