Keszoox
3S 25A BMS PCM Battery Protection Board with Balance — Li-ion / LiPo 18650 Cells
3S 25A BMS PCM Battery Protection Board with Balance Li-ion / LiPo 18650 Cells
Regular price
$6.48 USD
Sale price
$6.48 USD
Unit price
per
Taxes included.
Shipping calculated at checkout.
Couldn't load pickup availability
3S 25A Li-ion / LiPo BMS Protection Board with Cell Balancing
This 3S 25A Battery Management System (BMS) provides comprehensive protection for 3-cell series Li-ion and LiPo battery packs. Featuring built-in cell balancing, it ensures each cell charges evenly, extending overall pack lifespan and maintaining safe operation across all charge/discharge cycles.
Key Specifications
| Parameter | Value |
|---|---|
| Configuration | 3S (3 cells in series) |
| Continuous Discharge Current | 25A |
| Overcharge Protection Voltage | 4.25V ± 0.05V per cell |
| Over-Discharge Protection Voltage | 2.5V ± 0.1V per cell |
| Overcurrent Protection | ~50A (peak) |
| Cell Balancing | Yes (passive balancing) |
| Compatible Cell Types | Li-ion, LiPo (18650, 26650, pouch) |
| Operating Temperature | -40°C to +85°C |
Protection Features
- ✅ Overcharge protection — cuts off charging when cell voltage exceeds threshold
- ✅ Over-discharge protection — disconnects load before cells are damaged
- ✅ Overcurrent / short-circuit protection — instant cutoff on fault detection
- ✅ Cell balancing — passive balancing equalizes cell voltages during charging
- ✅ Temperature protection — wide operating range for demanding environments
Why Choose This BMS?
- Compact PCB design — easy to integrate into custom battery enclosures
- 25A continuous rating — suitable for power tools, e-bikes, and robotics
- Passive cell balancing — no additional balancer required
- Compatible with standard 18650 cell configurations
- Reliable protection IC — proven in DIY and commercial battery packs
Typical Applications
- DIY 18650 battery packs (3S configuration)
- E-bike and electric scooter battery systems
- Power tool battery replacement packs
- Robotics and RC vehicle power supplies
- Portable power stations and UPS systems
- Solar energy storage (small-scale)
Package Contents
- 1 × 3S 25A BMS/PCM Protection Board with Cell Balancing
