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. XT60 Interface: With XT60 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 , lightweight and has a long service life. 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. Application: This dual battery discharge converter is applicable for 20V72V batteries and controllers, input voltage DC 2072V.