3S 4S 5S 40A Battery BMS

The Electrozonbd 3S/4S/5S 40A Battery BMS provides reliable protection and management for lithium-ion battery packs. Equipped with overcharge, over-discharge, and short-circuit safeguards, it ensures stable and safe operation. Compact and durable, this BMS is ideal for DIY battery projects, power tools, e-bikes, and portable electronics, delivering efficient energy management and long-lasting battery performance.

Product Details

• Supports 3S, 4S, and 5S lithium battery packs

• Maximum current handling: 40A

• Protects against overcharge, over-discharge, and short circuits

• Compact, lightweight, and easy to install

• Ideal for DIY battery packs, e-bikes, and portable electronics

Product Specifications

• Model: 3S/4S/5S 40A BMS

• Supported Cells: 3–5 Li-ion / LiPo series

• Maximum Current: 40A continuous

• Protection Features: Overcharge, over-discharge, short-circuit, balance

• Dimensions: Compact, PCB module (exact size varies by model)

• Applications: E-bikes, DIY battery packs, power tools, portable devices