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Smart BMS 3S 20A 12V 18650 Li‑Ion Battery Charger Protection Balance Board
Upgrade your battery management with the Smart BMS 3S 20A 12V 18650 Li‑Ion Charger Protection Balance Board. Designed for high‑performance 18650 cells, this board delivers reliable protection, precise balancing, and equalization, ensuring optimal battery health and longevity.
Key Highlights
- Supports 3‑cell (3S) Li‑Ion packs up to 20 A continuous discharge
- 12 V nominal output – perfect for 18650 battery packs and portable electronics
- Integrated charger protection: over‑charge, over‑discharge, short‑circuit, and over‑current safeguards
- Advanced balancing circuit with 4 balancer channels for accurate cell voltage equalization
- Equalizer function automatically balances cells during idle or charging periods
- Compact, lightweight PCB design with robust 1.6 mm FR‑4 substrate
- Easy to install – plug into your existing battery pack or charger setup
- Compatible with standard 18650 Li‑Ion cells (3.7 V nominal)
- High‑quality components: 0.1 µF capacitors, 0.2 µF ceramic, 0.33 µF tantalum for noise suppression
- Low power consumption – minimal impact on overall battery efficiency
Technical Specifications
Input Voltage: 3.7 V – 4.2 V per cell (12 V nominal for 3S pack)
Current Rating: 20 A continuous, 30 A peak
Balancing Current: 0.5 A per channel
Protection Features: Over‑charge, over‑discharge, short‑circuit, over‑current, temperature monitoring
Dimensions: 70 mm × 50 mm × 1.6 mm (approx.)
Weight: 30 g
Operating Temperature: –20 °C to +60 °C
Why Choose This Smart BMS?
Whether you’re building a high‑capacity power bank, an electric bike battery, or a custom RC vehicle pack, this Smart BMS 3S 20A board guarantees safety, reliability, and peak performance. Its built‑in equalizer keeps every cell at the same voltage, reducing wear and extending battery life. The compact design fits neatly into tight spaces, while the robust protection circuitry offers peace of mind for both hobbyists and professionals.
Installation & Compatibility
Simply solder the board to your 3S 18650 pack or connect it to your charger’s BMS input. The board’s 4‑wire balance leads interface with most commercial chargers, and the 2‑wire power leads are compatible with standard Li‑Ion charging systems. No firmware updates required – plug, connect, and enjoy instant protection.
Order Now and Power Your Projects Safely
Elevate your battery pack’s safety and longevity with the Smart BMS 3S 20A 12V 18650 Li‑Ion Battery Charger Protection Balance Board. Click “Add to Cart” and experience reliable, high‑quality battery management today.
Price: Original price was: $ 3.43.$ 1.68Current price is: $ 1.68.