2S 8A 7.4V / 8.4V Lithium LiPo / Li-Ion Battery BMS Protection Board – Balance & Over-Current Control Module in Pakistan

Overview

When building custom 2S rechargeable battery packs using 18650 cells or lithium-polymer pouches for portable speakers, handheld electronics, or robotics, leaving the cells unprotected risks dangerous overcharging, deep discharge, or short circuits. The 2S 8A 7.4V / 8.4V Lithium LiPo / Li-Ion Battery BMS Protection Board acts as the vigilant safety guardian of your power pack. Engineered with precision integrated MOS switches and voltage-monitoring ICs, this compact module automatically controls charging voltages, prevents cell damage from over-drainage, and shuts down instantly during over-current faults.

Key Features

• Dual-Cell 2S Compatibility: Specifically designed for 7.4V nominal (8.4V peak) two-series lithium-ion and LiPo battery configurations.

• Comprehensive Circuit Protection: Built-in safeguards against over-charge, over-discharge, short-circuiting, and excessive discharge current.

• Low Quiescent Current: Minimal self-power consumption ensures your battery pack retains its charge during long storage periods.

• Compact & Easy to Wire: Clearly labeled solder pads for B+, B-, BMID (center tap), P+, and P- make custom pack assembly straightforward.

Technical Specifications

Common Applications

• Custom 2S Power Packs: Essential safety circuit for DIY 7.4V lithium battery assemblies used in portable audio amplifiers and LED lights.

• Miniature Robotics & RC Models: Protects small dual-cell packs powering hobby motors and microcontroller boards.

• Note to customers: Always ensure the correct wiring sequence (B- first, then BMID, then B+) when soldering the BMS to your cells to prevent permanent damage to the protection IC!