4S High Current up to 30A Lithium Battery Protection Board four Series of 14.8V 16.8V

4-Series (4S) Lithium Battery Protection: Designed specifically for 4-cell 18650 lithium-ion / LiPo battery pack configurations operating at nominal 14.8V and peak 16.8V charging voltage.

30A Continuous High-Current Output: Delivers up to 30A continuous discharge current, making it ideal for power-hungry applications, high-drain DC motors, and power tools.

Full Automated Safety Cutoffs: Built-in hardware protection ICs provide instant cutoffs against overcharging, over-discharging, overcurrent, and short circuits to protect cell integrity.

Enhanced Thermal & Low-Resistance Layout: Built with multiple parallel high-power MOSFETs and heavy copper traces to minimize resistance and heat build-up under high current loads.

Clear Terminal Solder Interface: Clearly marked solder pads (B-, B1, B2, B3, B+, P-, P+) ensure straightforward connection during battery pack construction.

Board Material: High-grade FR-4 glass epoxy printed circuit board (red PCB) with high-power surface-mount MOSFETs.

Technical Specifications:

Series Configuration: 4S (4 Cells in series).

Nominal / Max Voltage: 14.8V nominal / 16.8V max charge voltage.

Continuous Discharge Current: Up to 30A.

Board Color: Red PCB.

Usage Advice: Connect all balance leads (B1, B2, B3) in exact sequence to ensure all four series cells are properly monitored.

Maintenance: Ensure sufficient ventilation around the board when delivering high continuous currents near the 30A rating.

Essential High-Drain Battery Guardian: Position as a heavy-duty protection module for custom 14.8V / 16.8V battery builds powering electric scooters, power tools, RC models, and solar energy storage.

Highlight High-Current Reliability: Emphasize how the 30A continuous capacity combined with automated safety cutoffs provides rugged protection against short circuits and over-discharge without complex programming.

Recommended Cross-Sell Add-ons: Pair with 18650 BMS Board 4S 40A Balanced 16.8V, 4S 30A 14.8V LI-ION Lithium 18650 Battery, 18650 BMS Board 3S 40A Balanced 12.6V, and ESD antistatic mat 50x40CM PCB Welding Mat.

Featured Collection Star: Display prominently on your Hardware Battery Management System collection page as your high-current 4S 30A protection board.