Features: Replacement BL1850B/BL1840B battery protections board.
Suitable for BL18V tool lithium battery housing DIY.
Craft from quality materials, reliable and easy installation.
Accurate design, perfectly fit.
Only the protective board and do not include batteries or casing materials.

Specifications: Material: Printed Circuit Board
Applicable Model: for 18V Tool BL1850B/BL1840B Lithium Battery DIY

Package Includes: 1x Protective Board

note: Please allow 1-2cm errors due to manual measurement.
Please allow for slight color differences due to different display resolution.