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3S 18650 Battery Protection BMS Board – Overcharge, Over-discharge, Overcurrent Protection
₹39.0
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The 3S 18650 Battery Protection BMS Board is designed to manage and protect lithium-ion 18650 cells connected in a 3-series configuration (11.1V nominal, 12.6V full charge). It ensures safe and efficient charging and discharging by preventing common issues like overcharge, over-discharge, short circuits, and overcurrent damage. Compact, lightweight, and reliable, this board is an essential component for DIY battery packs, robotics projects, e-bikes, power banks, and solar storage systems.
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Product Specifications
| Specification | Details |
|---|---|
| Battery Type | 3S Lithium-Ion |
| Nominal Voltage | 11.1V |
| Full Charge Voltage | 12.6V |
| Overcharge Protection Voltage | ~4.25V ± 0.05V per cell |
| Over-discharge Protection Voltage | ~2.7V ± 0.05V per cell |
| Continuous Discharge Current | 10A (typical) |
| Peak Current | 15A (short duration) |
| Charging Voltage | 12.6V |
| Dimensions | Approx. 45mm × 20mm × 3mm |
Key Features
- Overcharge protection
- Over-discharge protection
- Over-current protection
- Short-circuit protection
- Automatic recovery after protection
- Compact and lightweight
- Easy integration
- Extended battery life
- Reliable performance
Applications
- DIY power banks
- Electric toys
- LED lighting systems
- Portable devices
- 3S lithium-ion battery packs
- Solar energy storage projects
- Small robotics
- Backup power systems
Inside the Box
- 1 × 3S 18650 Battery Protection BMS Board
Frequently Asked Questions
Yes, lithium-ion batteries are sensitive to overcharging and deep discharging. A BMS is essential to prevent damage and ensure safe operation.
No, it has labeled solder pads for battery connections (B+, B-, B1, B2) and output terminals, making installation straightforward.
A 3S BMS board is designed to manage and protect 3 lithium-ion cells connected in series, typically used for 11.1V / 12.6V battery packs.
This model supports up to 10A continuous discharge current. For high-drain applications, choose a higher current-rated BMS.
