HW-391 20A 2S BMS 8.4-9V Lithium Battery Protection Board Balanced Version
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HW-391 20A 2S BMS 8.4-9V Lithium Battery Protection Board Balanced Version
HW-391 20A 2S BMS 8.4V Lithium Battery Protection Board
A high-quality Battery Management System (BMS) designed for 2-series lithium battery packs. Built with precision components and high-grade PCB material to effectively avoid corrosion and wear for long-lasting durability.
Key Specifications
- Model: HW-391
- Charging Voltage: DC 8.4–9V
- Version: Balanced / Standard
- Continuous Discharge Current: Max 20A
- Continuous Charging Current: Max 10A
- Peak Start-up Current: 25A
- Compatible Load: Power drills under 50W or resistive loads up to 168W
- Dimensions: 48mm × 20mm × 4mm
- Weight: 3g
Compatible Batteries
Works with all 3.7V nominal / 4.2V charge lithium batteries including 18650, 26650, and polymer lithium cells.
Features
- Overcharge, over-discharge, and short-circuit protection
- Cell balancing for extended battery life
- Compact and easy to install with precise cuts and interfaces
- High-quality materials for durability and corrosion resistance
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