3S 12V 100A Protection Circuit Board

High-Current 3-Series (3S) Protection: Engineered for 3-cell 12V lithium-ion / LiPo battery pack configurations operating at nominal 11.1V / 12V and peak 12.6V charging voltage.

100A Continuous Discharge Capacity: Delivers up to 100A continuous discharge current with enhanced heat dissipation, built to handle heavy power demands in high-drain applications.

Integrated Cell Balancing: Features passive voltage balancing circuitry that equalizes cell voltages during charge cycles, preserving overall battery health and cycle life.

Comprehensive Safety Safeguards: Built-in hardware protection against overcharging, over-discharging, overcurrent, and short circuits to ensure maximum operational safety.

Heavy-Duty Aluminum Heat Sink Housing: Encased in a rugged aluminum heat sink shell that shields components from physical damage while efficiently cooling high-power MOSFETs.

Board & Housing Material: Heavy-duty aluminum enclosure housing a high-grade FR-4 PCB equipped with low-resistance power MOSFETs.

Technical Specifications:

Series Configuration: 3S (3 Cells in series).

Nominal / Max Voltage: 11.1V–12V nominal / 12.6V max charge voltage.

Continuous Discharge Current: Up to 100A.

Balance Function: Yes (Integrated cell balancing).

Color: White / Silver housing with color-coded balance wire harness.

Usage Advice: Connect the included multi-pin balance wire harness accurately to each cell node sequence starting from B- up to B+ before connecting the main power output leads.

Maintenance: Ensure adequate ventilation around the aluminum casing when operating under sustained high-current loads.

Essential High-Output 12V BMS: Position as a heavy-duty protection module for building or upgrading high-capacity 12V battery packs for solar energy storage, high-power inverters, electric trolling motors, and audio systems.

Highlight 100A Capacity & Balancing: Emphasize how 100A continuous power output paired with integrated cell balancing ensures reliable performance and longevity for demanding 12V power builds.

Recommended Cross-Sell Add-ons: Pair with 4S 12V 100A Protection Circuit Board, 3S 100A LiFePO4 Lithium Battery Protection, 18650 BMS Board 3S 40A Balanced 12.6V, and ESD antistatic mat 50x40CM PCB Welding Mat.

Featured Collection Star: Display prominently on your LiFePO4 (LFP) Hardware BMS Modules collection page as your high-current 3S 100A protection board.