Features: Professional PCB board for 40V GMAX 29472 29462 lithium batteries ensures safe charging/discharging cycles and cell voltages balance, featuring robust construction with 10cell configuration for battery assembly experts. This 18650 compatible battery case integrates a customizable protections circuit board with flexible design iterations, crafted from durability PCB materials to withstand high current applications while maintaining functional consistency across versions. Ideal for electronics technicians and advanced enthusiasts who possess spots welding equipment, multimeters, and expertise in lithium batteries pack rebuilding/repair projects requiring for 40V compatibility. Perfect for restoring or upgrading for 29472/29462 battery housings in workshop environment. Critical assembly note Requires identical voltages 18650 power cells (discharge rate >10C) and professional tools for safe installation and protections board only (not included batteries ), strictly for technical users familiar with lithium batteries management systems. Specifications: Component: PCB Size:Approx.90x65mm/3.54x2.56inch Features: 18650 power lithium batteries needs to be used, the discharge rate is >10C to ensures that the voltages of each battery cell is consistent Use scenario: Suitable for users who need to assemble or repair for 40V GMAX 29472 29462 battery Package Includes: 1pc Battery Protections Board(without battery) note: Please allow 1-3cm errors due to manual measurement. Due to the differences between different monitors, the picture may not reflect the actual item color.