🔋 Safe & Smart Battery Management – 6S 22.2V 12A BMS for Lithium Battery Packs
Protect and manage your lithium-ion battery packs with this 6S 12A BMS (Battery Management System) designed for 6-cell 18650 Li-ion batteries. Whether you’re building a DIY battery pack for an e-bike, solar system, power bank, or RC project, this protection board ensures efficient charging and discharging cycles while safeguarding your batteries from damage.
This 6S BMS offers overcharge, over-discharge, short circuit, and overcurrent protection, making it an essential component for any high-drain lithium battery setup. With a rated continuous discharge current of 12A, it can power medium-load devices smoothly without voltage dips or thermal issues.
Ideal for hobbyists, DIY engineers, or anyone working with 22.2V lithium packs, this board delivers consistent and reliable performance in compact builds.
🔧 Key Features:
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Supports 6 Series (6S) Li-ion cells – 18650 or similar
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Operating Voltage: 22.2V nominal
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Continuous discharge current: 12A
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Protection against overcharge, over-discharge, short circuit, overcurrent
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Compact size for DIY projects and custom battery builds
✅ Technical Specifications
| Feature | Details |
|---|---|
| Battery Type | 6S Li-ion / 18650 cells |
| Input Voltage (Charging) | 25.2V DC (Max) |
| Nominal Voltage | 22.2V |
| Max Charge Voltage | 4.2V per cell |
| Discharge Current | 12A continuous |
| Overcharge Protection | ~4.25V ± 0.05V |
| Over-discharge Protection | ~2.7V ± 0.1V |
| Short Circuit Protection | Yes |
| Balance Function | No active balancing |
| Dimensions | Approx. 50mm x 25mm |
✅ Use Cases
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🔋 E-bike battery packs
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🔋 DIY power banks
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🔋 Solar energy storage
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🔋 Robotics & RC projects
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🔋 Portable power supplies
✅ FAQs
❓ What does 6S mean?
6S refers to 6 series-connected lithium cells, usually 18650 batteries. It produces a nominal voltage of 22.2V (6 x 3.7V).
❓ Does this BMS have balancing?
No active balancing function is included in this module. It only provides protection features like overcharge, over-discharge, and short circuit protection.
❓ Can I use this BMS with LiFePO4 cells?
No, this BMS is specifically designed for Li-ion chemistry (3.7V nominal per cell) like 18650. It’s not compatible with LiFePO4 batteries (3.2V per cell).
❓ How do I connect the BMS to my battery pack?
You will need to connect it according to the wiring diagram provided in the product photos. Ensure correct polarity and secur soldering for stable performance.
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