Application: This dual battery discharge converter is applicable for 20V72V batteries and controllers, input voltage DC 2072V. Current Increase: The dual battery parallel module of electric bike can increase the current, battery capacity, and discharge at the same time, providing lasting power for your electric bike. Support 2 Battery Packs: The dual battery parallel module can manage 2 battery packs on your bike, support 2 battery packs for power supply at the same time, or a single battery for power supply. XT60H Interface: With XT60H port, the male is the input end connected with 2 batteries, and the female is the output end connected with the controller. Aluminum Alloy: The dual battery adapter is made of premium aluminum alloy material, which is , and has a long service life. Type:40A Colour:Black Material:aluminum Package Contents: 1 * Battery management module Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.