Li-Ion Lithium Battery Pack Protection Circuit Board BMS Module For Power Tools 5S 18V 21V 20A Battery Charging Protection Board
SPECIFICATIONS
Brand Name: SHIDWJ
Choice: yes
High-concerned chemical: None
Origin: Mainland China
semi_Choice: yes
Description
The protective plate is used for Series 5 lithium-ion batteries, mainly for power tools.
It uses an IC dedicated to the 5S lithium battery as a processor to detect the real-time voltage, charge and discharge current and ambient temperature of each battery.
Stable various charge and discharge protection functions, such as overcharge protection, overdischarge protection and short circuit protection.
Low power consumption, operating current of about 25uA, static current of about 6uA. Choosing the right protection board and using it properly is essential to extend battery life.
Specifications
Operating voltage: 18V
Charging current: 1~3A
Discharge current: 10A (adjustable)
Overdischarge protection current: 35±10A
Protection size: 46*40*3.6 (length width)
Materials: Other
Packaging: 1PC
Charging voltage: 21~24V
Applicable battery: lithium iron phosphate, lithium manganese, lithium cobalt, ternary, etc
Application: 5 series 21V power tools screw knife charging hand drill lithium battery special protection plate
Note:
Due to manual measurement, please allow an error of 1-3mm. Please ensure that you do not mind before bidding.
Due to the differences between different monitors, the images may not reflect the actual color of the item. Please refer to the actual image received. Thank you very much.
The power module is a kind of electronic components, please do not have electronic professional knowledge, otherwise it will be easily damaged!










- Standard Shipping: 7-15 business days worldwide
- Express Shipping: 3-7 business days (UPS / FedEx)
- Free Shipping: Orders over $199 qualify automatically
- Tracking: Full tracking number provided for all orders
- Returns: 30-day hassle-free return window
- Condition: Items must be unused and in original packaging
- Refund: Full refund processed within 3-5 business days
- Factory Direct: ISO/TS 16949 certified manufacturer
- Quality: 100% electrical continuity tested before shipment
- Experience: 15+ years in automotive connector industry
- Support: Professional technical support available
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