Features: 21V Repair Replacement: This battery circuit board assembly replaces the board component in a 21V battery pack repair project.
Defined Board Construction: The PCB combines electronic components and metal parts in a populated main-board assembly for a clearly identified replacement component.
Button And Power Display: The integrated push button works with the connected LED display to let you view the battery's remaining power.
Layout Matching Before Installation: Compare the 21V board, red and black connections, separate display board, and USB-A and Type-C port layout with the repair project.
Package Contents: Includes 1 circuit board assembly for a 21V battery pack repair project.

Specifications: Component: PCB circuit board, electronic components, and metal parts
Battery: 21V battery management circuit board with computer management, push-button control, and power display
Applications: battery pack repair | Power tool battery modification
Module size approx. 4x4.5cm/1.57x1.77in

Package Includes: 1 piece Battery Circuit Board

note: 1.Please allow 1-2cm errors due to manual measurement, make sure that you donot mind before you order.
2.Due to the differences between different monitors, the picture may not reflect the actual color of the item.