Description
3S 4S 40A 60A Li‑Ion Lithium Battery Charger Protection Board – the ultimate 18650 BMS for high‑performance drill motors. Designed to support 11.1V, 12.6V, 14.8V, and 16.8V battery packs, this protection board enhances cell balance, extends battery life, and delivers safe, reliable operation for both hobbyists and professionals.
Key Features
- Dual‑mode current rating: 40A for 3‑cell packs, 60A for 4‑cell packs
- Advanced cell‑balancing algorithm for uniform charge distribution
- Built‑in over‑charge, over‑discharge, short‑circuit, and temperature protection
- Compact 5mm x 5mm footprint – perfect for tight drill motor housings
- Compatible with 18650 Li‑Ion cells and 18650‑based battery packs
- High‑speed communication via UART for real‑time monitoring
- Low‑profile design reduces overall weight and improves heat dissipation
Technical Specifications
- Voltage range: 3S (11.1V) – 4S (16.8V)
- Max output current: 40A (3S) / 60A (4S)
- Cell count: 3–4 cells (18650)
- Operating temperature: –20°C to +60°C
- Protection thresholds: 4.25V (over‑charge), 2.5V (over‑discharge), 55°C (thermal)
- Protection type: Over‑charge, Over‑discharge, Short‑circuit, Over‑current, Thermal
- Communication: UART, I²C, optional SPI
Applications
- High‑power drill motors and cordless power tools
- Electric vehicle battery packs and e‑bike systems
- Portable power stations and solar energy storage
- DIY robotics, RC vehicles, and hobbyist projects
- Industrial machinery requiring reliable Li‑Ion protection
Why Choose This BMS?
- Reliability: Certified safety standards for commercial and industrial use
- Performance: Rapid balancing keeps all cells within 0.1V of each other
- Flexibility: Works with both 3S and 4S configurations without modification
- Ease of Integration: Plug‑and‑play with standard 18650 connectors
- Durability: Robust PCB layout resists vibration and shock
- Support: 90‑day return policy and 1‑year warranty on components
Upgrade your battery system with the 3S 4S 40A 60A Li‑Ion Battery Charger Protection Board and experience unmatched safety, performance, and longevity for your 18650 Li‑Ion packs.
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