4S 6A 12V Li-ion BMS Protection Board for 32700 Lithium-Ion Battery Pack | 4S 6A Battery Management System with Overcharge, Over-Discharge & Short-Circuit Protection

The 4S 6A Lithium-Ion Battery Protection BMS Board is designed for building and protecting 4-series (4S) rechargeable lithium-ion battery packs using compatible cells such as 32700 

The BMS provides essential protection against overcharge, over-discharge, over-current and short circuits, helping protect the connected battery cells during normal operation.

A typical 4S Li-ion battery pack has a nominal voltage of 14.8V and reaches approximately 16.8V when fully charged.

Key Features

• BMS Configuration: 4S
• Rated Current: 6A
• Battery Chemistry: Lithium-Ion
• Compatible Cells: 32700 
• Nominal Pack Voltage: 14.8V
• Maximum Charging Voltage: 16.8V
• Overcharge protection
• Over-discharge protection
• Over-current protection
• Short-circuit protection
• Compact PCB design
• Suitable for DIY battery-pack assembly

Applications

Suitable for:

• 🔋 32700 Lithium-Ion Battery Packs
• 🔧 DIY Battery Projects
• 🤖 Robotics
• 💡 Portable Lighting
• ⚡ Portable Power Systems
• 🔌 Rechargeable Electronic Devices
• 🚲 Compatible electric mobility projects

Technical Specifications

Important

4S Li-ion is not the same as a 12.6V (3S) battery pack. A 4S Li-ion pack is normally 14.8V nominal and 16.8V fully charged. Use a compatible 16.8V Li-ion charger.

Before installation, verify the BMS wiring sequence, cell polarity, battery chemistry and current requirements. Incorrect wiring can damage the BMS or battery.