Description
LI-ION 6S 24V10A/20A/30A And 40A 18650 BMS CHARGE PROTECTION CIRCUIT
The 6S 24V Lithium Battery Protection Board (BMS) is a high-performance Battery Management System designed to safely manage 6-series (6S) 18650 lithium-ion battery packs. It continuously monitors individual cell voltages while providing intelligent protection against overcharge, over-discharge, overcurrent, and short circuits, ensuring longer battery life and enhanced operational safety.
Available in 10A, 20A, and 40A current ratings, this compact protection board is suitable for a wide range of DIY battery packs, electric bicycles, backup power systems, portable equipment, LED lighting, robotics, solar storage, and other lithium battery-powered applications.
The BMS automatically disconnects the battery when abnormal voltage or current conditions are detected and restores operation once safe conditions return, providing reliable battery protection and stable performance.
Key Features
- Designed for 6-Series (6S) 24V Lithium-Ion battery packs.
- Available in 10A, 20A, 30A and 40A variants.
- Supports six 18650 Li-ion cells connected in series.
- Overcharge protection.
- Over-discharge protection.
- Overcurrent protection.
- Short-circuit protection.
- Automatic recovery after fault removal.
- Cell voltage balancing support (model dependent).
- Compact PCB design for easy installation.
- Stable charging and discharging management.
- Extends battery life and improves safety.
- Low power consumption.
- Suitable for DIY and commercial battery packs.
Technical Specifications
| Parameter | Specification |
| Product Type | Battery Management System (BMS) |
| Battery Configuration | 6S (6 Cells in Series) |
| Battery Type | 18650 Lithium-Ion |
| Nominal Battery Voltage | 21.6V |
| Fully Charged Voltage | 25.2V |
| Current Variants | 10A / 20A / 30A / 40A |
| Protection Functions | Overcharge, Over-discharge, Overcurrent, Short Circuit |
| Cell Monitoring | Individual Cell Voltage Monitoring |
| Balancing | Passive Balancing (Model Dependent) |
| PCB Type | Lithium Battery Protection Board |
| Operating Life | Up to 30,000+ Hours (Typical) |
| Installation | Solder Wire Connection |
Applications
- DIY Lithium Battery Packs
- Electric Bicycles (E-Bikes)
- Electric Scooters
- Power Banks
- Solar Energy Storage Systems
- UPS Battery Packs
- Portable Power Stations
- LED Lighting Backup Systems
- Robotics Projects
- Medical Equipment
- Battery Repair & Replacement
- Industrial Battery Packs
- Emergency Power Systems
Precautions
- Use only with 6S lithium-ion battery packs.
- Do not use with LiFePO₄ or Lead Acid batteries.
- Verify battery polarity before connecting.
- Connect balance wires in the correct sequence.
- Do not exceed the rated continuous current.
- Avoid short circuits during installation.
- Use insulated wiring and secure solder joints.
- Install in a dry, well-ventilated enclosure.
- Check each cell voltage before first use.
- Disconnect the battery before servicing the circuit.