Features: The Double Battery Parallel Module 20V 72V allows simultaneous discharge and increased current capacity, ensuring balanced power for your electric bike with its intelligent double battery switching feature. From durability aluminum, this module allows seamlessly switching and parallel connection of Double batteries, ensuring balanced power distribution across 20V-72V systems at up to 20A. For electric vehicle enthusiasts, DIY electronics developers, and users to boost battery service this module offers a practical solution for managing multiple battery packs. Perfectly suited for highly demand applications such as power tool, electric bikes, and solar energy storage systems, where need efficient power supply. With its intelligent designing, this Double battery connector ensures optimaled energy management, making it essential accessory in the realm of battery accessories and charging. Specifications: Item: Double Battery Parallel Module Power Distribution across 20V-72V 20V-72V 20A Component： Aluminum Size: about 50x45x18mm/1.97x1.77x0.71in Package Includes: 1PC Double Battery Parallel Module note: 1cm=10mm=0.39inch Due to problem of lighting effect, there nmightbe certain tolerances in product, please understand. Please allow 0-1cm error due to manual measurement.