3S BMS 12V 20A 11.1V - 12.6V 6 Cell 18650 Lithium Battery Charging Protection Board Battery Management System Module

3-Series (3S) Lithium Battery Protection: Engineered for 3S 18650 lithium-ion / LiPo configurations (3S1P or 3S2P 6-cell setups) with nominal 11.1V and max 12.6V charging voltage.

20A Continuous Discharge Capacity: Supports up to 20A continuous discharge current (with instantaneous peak surge handling), suitable for driving medium-power DC motors and DIY power packs.

Automated Safety Protection: Integrated protection control IC provides instant hardware-level cutoffs against overcharging, over-discharging, overcurrent, and output short circuits.

Compact Strip Form Factor: Space-saving PCB layout with clearly marked solder terminals (B-, B1, B2, B+, P-, P+) for clean, straightforward wiring in compact battery enclosures.

Low Idle Current Draw: Minimal static energy consumption ensures long standby times without draining connected battery cells when inactive.

Board Material: High-grade FR-4 glass-reinforced epoxy PCB equipped with surface-mount power MOSFETs and protection control circuitry.

Technical Specifications:

Series Configuration: 3S (3 Series / up to 6 Cells in 3S2P layout).

Nominal / Max Voltage: 11.1V nominal / 12.6V max charge voltage.

Continuous Discharge Current: Up to 20A.

Board Color: Green PCB.

Usage Advice: Ensure all 18650 cells are voltage-matched and balanced before soldering them to the board terminals.

Maintenance: Store extra modules in anti-static bags and keep solder pads clean and dry to prevent short circuits.

Essential 12V Battery Protection Module: Position as a core safety component for building or repairing 12V 18650 battery packs for power tools, RC models, LED strips, and solar backup systems.

Highlight Compact & Reliable Hardware Protection: Emphasize how this board delivers essential overcurrent and over-discharge safeguards without complex programming.

Recommended Cross-Sell Add-ons: Pair with 3S 20A Li-ion Battery 18650 BMS Board 12.6V, 18650 BMS Board 3S 25A Balanced 12.6V, 3S 11.1V 10A Battery Management System / BMS Module, and ESD antistatic mat 50x40CM PCB Welding Mat.

Featured Collection Star: Display prominently on your Hardware Battery Management System collection page as your standard 3S 20A protection module.