Feature: 1. Application: This dual battery discharge converter is applicable for 20V‑72V batteries and controllers, input voltage DC 20‑72V. 2. 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. 3. 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. 4. 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. 5. Aluminum Alloy: The dual battery adapter is made of premium aluminum alloy material, which is durable, lightweight and has a long service life. Specification: Item Type: Electric Bike Double Battery Discharge Converter Material: Aluminum Alloy Gross Weight: 105g / 3.7oz Input: DC 20-72V Output Voltage: 20V-72V Connector Interface Specification: XT60. Package List: 1 x Dual Battery Parallel Adapter Note: 1. If you need to use different voltage battery packs, first confirm whether the controller supports2. The differential pressure range of the two batteries cannot be too different, if the controller does not support wide range voltage, it is easy to damage the equipment, and the battery capacity can be different