4S 30A 14.8V LI-ION Lithium 18650 Battery

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

30A Continuous Discharge Capacity: Delivers up to 30A continuous discharge current, making it ideal for high-power DIY battery builds, power tools, and high-drain DC motors.

Integrated Safety Circuitry: Features automated hardware protection cutoffs against overcharging, over-discharging, overcurrent, and short circuits to protect cell health and prevent thermal runaway.

Heavy-Duty PCB Trace Design: Built with low internal resistance power MOSFETs and heavy copper layers to ensure low heat buildup during high-current output.

Clear Terminal Solder Pads: Solder-friendly interface pads (B-, B1, B2, B3, B+, P-, P+) simplify connections for custom wiring harnesses.

Board Material: High-grade FR-4 glass epoxy printed circuit board with high-power surface-mount MOSFETs and protection control circuitry.

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: Green PCB.

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

Maintenance: Maintain adequate airflow around the board when running high continuous loads to prevent thermal cutoffs.

Essential High-Power 4S Module: Position as a core protection module for building or repairing 14.8V / 16.8V battery packs for power tools, drone ground stations, audio amplifiers, and robotics.

Highlight Reliable Hardware Protection: Emphasize how this board delivers essential safety features—preventing cell over-discharge and external short circuits—without requiring microcontrollers or programming.

Recommended Cross-Sell Add-ons: Pair with 18650 BMS Board 4S 40A Balanced 16.8V, 4S High Current up to 30A Lithium Battery Protection Board four Series of 14.8V 16.8V, 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 standard 4S 30A protection module.