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2S 20A 18650 Lithium Battery Protection Board
The 2S 20A 18650 Lithium Battery Protection Board is designed to manage and safeguard two-cell 18650 battery packs. This BMS module controls charging and discharging, prevents overcharge, over-discharge, and short circuit, ensuring a longer life for your lithium cells.
With its HX-2S-D20 design, the 2S 20A 18650 Lithium Battery Protection Board provides reliable current handling of up to 13A continuous and 20A peak. It automatically disconnects when a cell reaches full charge and restores once safe voltage is reapplied, offering dependable operation for long-term use.
🔧 Key Features
- Protects against overcharge, over-discharge, and short circuit
- Designed for 2-cell 18650 lithium battery packs
- Automatic reset and recovery after protection mode
- Supports up to 20A peak current
- Durable PCB with long service life (30,000+ hours)
- Compact size for easy integration in battery projects
📐 Technical Specifications
| Model Number | HX-2S-D20 |
| Cell Support | 2 × 18650 Lithium Cells |
| Overcharge Cut-off | 4.25–4.35 V ±0.05 |
| Over-discharge Cut-off | 2.5–3.0 V ±0.05 |
| Operating Current | Up to 13 A continuous |
| Max Current | 20 A peak |
| Charge Voltage | 8.4–9 V |
| Quiescent Current | Less than 10 µA |
| Internal Resistance | Below 300 mΩ |
| Temperature Range | -40°C to +50°C |
| Dimensions | 44.8 × 18.9 × 3.5 mm |
| Weight | Approx. 4 g |
📌 Applications
- 18650 lithium battery packs
- RC cars, drones, and robotics projects
- DIY power banks and portable electronics
- Embedded systems and lab equipment
- Rechargeable battery protection circuits
💡 Why Choose This Product?
The 2S 20A 18650 Lithium Battery Protection Board offers complete safety and stability for two-cell lithium battery assemblies. With intelligent cut-off thresholds, compact design, and durable performance, it ensures your battery-powered devices operate safely and efficiently.
📦 Package Includes
- 1 × HX-2S-D20 2S 20A 18650 Lithium Battery Protection Board
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