18V Li-Ion Battery Case & PCB Circuit Board for Power Tools
18V Li-Ion Battery Case & PCB Circuit Board for Power Tools
18V Li-Ion Battery Case with PCB Circuit Board – Compatible with Lomvum, Zhipu, Hongsong, Jingmi & More
Rebuild or repair your 18V lithium-ion battery pack with this complete battery case and PCB circuit board set. Designed for DIY enthusiasts and experienced battery assemblers, this kit includes a high-quality plastic battery housing and a built-in intelligent protection circuit board — everything you need to assemble or restore a functional 18-volt power tool battery.
Made in Mainland China.
Key Features
- Intelligent IC Monitoring: Built-in IC chip continuously detects cell voltage and current, and logs usage cycles for smarter battery management.
- Multi-Layer Protection System: The integrated PCB provides overheat protection, overvoltage protection, undervoltage protection, overcurrent protection, and overcharge protection — keeping your cells and tools safe during every use.
- Low Voltage Shutdown: Compatible with Makita-style 18V battery form factors and supports low-voltage shutdown, meeting the requirements of a wide range of power tool manufacturers.
- Broad Compatibility: Fits Lomvum, Zhipu, Hongsong, and Jingmi 18V lithium battery packs. Note: Not compatible with genuine/original Makita battery cores.
- Available in 10-Hole & 15-Hole Configurations: Choose the layout that matches your battery cell arrangement.
- Color: Black | Material: Plastic
Important Assembly Notes
This product is a component kit only — it does not include battery cells. It is intended for individuals who are experienced with battery assembly and familiar with lithium-ion cell handling.
- New Assembly: Use 18650 power lithium battery cells only. A group of six cells must be balanced with matched resistance and capacitance so all cells share the same voltage before welding.
- Battery Repair: Test the voltage at both ends of each existing cell. If voltages differ, charge each cell individually to an equal voltage level before proceeding.
- Critical: Always confirm that every cell is at the same voltage level before soldering the PCB. Unbalanced cells can damage the circuit and compromise safety.
Specifications
- Compatibility: 18V Li-Ion battery packs (Lomvum, Zhipu, Hongsong, Jingmi)
- Configurations: 10-Hole / 15-Hole
- Material: Plastic (Black)
- Includes: 1 x Battery Case Set (PCB circuit board included; battery cells NOT included)
- Customized: No
- Origin: Mainland China
Package Contents
- 1 x Battery Case with PCB Circuit Board
Note: Due to different production batches, some accessories may vary slightly in color or appearance, but all maintain the same function. Minor color differences may appear due to lighting and display settings. Measurement tolerance: ±1–3 cm. PCB design is subject to change based on supply chain and manufacturing updates.
For general guidance on safe handling of lithium-ion batteries, visit the U.S. Consumer Product Safety Commission – Lithium-Ion Battery Safety.
Frequently Asked Questions
Q: Is this battery case compatible with genuine Makita battery cells?
A: No. This battery case and PCB circuit board is designed for use with Lomvum, Zhipu, Hongsong, and Jingmi 18V lithium battery packs. It is not compatible with original or genuine Makita battery cores.
Q: Do battery cells come included with this kit?
A: No, battery cells are not included. This product is a battery case and PCB circuit board assembly kit only. You will need to supply compatible 18650 lithium-ion power cells separately. It is recommended for individuals experienced with battery assembly.
Q: What type of protection does the PCB circuit board provide?
A: The built-in PCB provides overheat protection, overvoltage protection, undervoltage protection, overcurrent protection, and overcharge protection, helping to keep your battery cells and connected tools operating safely.
Q: What is the difference between the 10-hole and 15-hole configurations?
A: The 10-hole and 15-hole options refer to the cell slot layout within the battery case. Choose the configuration that matches the number of 18650 battery cells you plan to assemble — typically 5 cells in series for a 10-hole design, or an expanded layout for a 15-hole design. Check your original battery pack layout before ordering.