Description
3S/4S/5S BMS 12.6V 16.8V 21V 3.7V 100A Li‑Ion / LMO / Ternary Lithium Battery Protection Circuit Board with Li‑Polymer Balance Charging
Product Overview
This high‑performance Battery Management System (BMS) is engineered for 3S, 4S, and 5S lithium‑ion, lithium‑manganese‑oxide (LMO), and ternary lithium chemistries. It delivers robust protection, precise cell balancing, and fast charging capabilities—all in a compact, lightweight design.
Key Highlights
- Supports 12.6V (3S), 16.8V (4S), and 21V (5S) configurations
- Maximum output current up to 100A for high‑power applications
- Advanced cell‑balance algorithm for long battery life
- Built‑in over‑charge, over‑discharge, short‑circuit, and temperature protection
- Compatible with Li‑Polymer and Li‑Ion packs up to 100Ah
- Compact PCB layout with low profile mounting
- Easy to wire with standard 10‑AWG or 12‑AWG leads
Technical Specifications
Voltage Range: 12.6V – 21V (3S/4S/5S)
Max Current: 100A
Cell Count: 3, 4, or 5 cells in series
Chemistry: Li‑Ion, LMO, Ternary Li
Protection Features: Over‑charge, over‑discharge, short‑circuit, temperature, over‑current
Balancing: Active cell balancing via high‑speed MOSFETs
Dimensions: 70mm × 35mm × 5mm (approx.)
Weight: < 50g
Ideal Applications
Perfect for electric vehicles, drones, RC models, portable power stations, and any high‑capacity lithium battery system that demands reliable protection and efficient balancing.
Why Choose Our BMS?
Our BMS combines proven protection circuitry with modern balancing technology, ensuring your battery pack remains safe, balanced, and at peak performance for years. With a straightforward installation process and durable construction, it’s the smart choice for hobbyists and professionals alike.
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