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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.
Built from high-quality components, the 2S 20A 18650 Lithium Battery Protection Board supports a wide range of applications such as RC projects, power banks, DIY battery packs, and electronic devices. It operates in the voltage range of 7.4–8.4 V, with precise cut-off thresholds for secure battery operation.
Compact, lightweight, and engineered for stability, the 2S 20A 18650 Lithium Battery Protection Board is ideal for hobbyists and engineers seeking safe and efficient battery management.
🔧 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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