Description
3S 12V DC Direct Plug Power Tool Hand Drill 18650 Lithium Electric Drill Power Lithium Battery Management System (BMS)
The 3S 12V Lithium Battery Management System (BMS) is specially designed for 3-Series (3S) 18650 Lithium-ion battery packs used in cordless power tools, hand drills, and DIY battery projects. Available in 6A (DC Jack), 8A (DC Jack), 15A (DC Jack), and 20A (Type-C) variants, this BMS provides reliable battery protection with integrated charging options depending on the selected model. It safeguards the battery pack against overcharge, over-discharge, overcurrent, and short-circuit conditions while ensuring efficient power delivery for improved performance and extended battery life. Its compact design and easy installation make it an excellent choice for battery replacement, repair, and custom battery pack applications.
Key Features
- Designed for 3S (3-Series) 18650 Lithium-ion battery packs.
- Available in 6A (DC Jack), 8A (DC Jack), 15A (DC Jack), and 20A (Type-C) variants.
- Ideal for cordless power tools and hand drills.
- Built-in overcharge protection.
- Over-discharge protection.
- Overcurrent protection.
- Short-circuit protection.
- Stable battery charging and discharging.
- Compact PCB design.
- Efficient power management.
- Easy installation and replacement.
- High-quality components for reliable operation.
- Suitable for DIY and OEM battery packs.
Technical Specifications
| Parameter | Specification |
|---|---|
| Product Type | Battery Management System (BMS) |
| Battery Type | Lithium-ion (Li-ion) |
| Battery Configuration | 3S (3 Cells in Series) |
| Compatible Cells | 18650 Lithium-ion |
| Nominal Battery Voltage | 11.1V |
| Fully Charged Voltage | 12.6V |
| Available Variants | 6A(DC Jack), 8A (DC Jack), 15A (DC Jack), 20A (Type-C) |
| Charging Interface | DC Jack / USB Type-C (Variant Dependent) |
| Protection Functions | Overcharge, Over-discharge, Overcurrent, Short Circuit |
| PCB Type | Protection Circuit Module (PCM/BMS) |
| Mounting Type | PCB Mount |
| Application | Power Tool Battery Packs |
Note: Charging connector and current rating depend on the selected variant.
Applications
- Cordless Hand Drill Battery Packs.
- Electric Screwdriver Battery Packs.
- Power Tool Battery Replacement.
- DIY Lithium Battery Packs.
- 18650 Battery Pack Assembly.
- Rechargeable Tool Batteries.
- Portable Power Packs.
- Mini Electric Drill Batteries.
- Electric Cutter Battery Packs.
- Cordless Garden Tools.
- DIY Electronics Projects.
- Robotics Projects.
- Arduino Battery Packs.
- Raspberry Pi Portable Power.
- Portable DC Power Supply.
- Custom Battery Pack Manufacturing.
Precautions
- Use only with 3S (11.1V/12.6V) Lithium-ion battery packs.
- Do not use with LiFePO4 batteries.
- Select the correct BMS variant based on your application and current requirement.
- Verify battery polarity before connecting.
- Do not exceed the rated current of the selected BMS.
- Prevent short circuits during installation.
- Use identical battery cells with the same capacity and charge level.
- Keep away from moisture and excessive heat.
- Ensure proper insulation after installation.
- Installation should be carried out by qualified personnel.