Features: Enhances your electric bikes power management with our Double Battery Parallel Module, to support simultaneous discharge from two battery packs, increasing current capacity efficiently. 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 40A. 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 40A Component： Aluminum Size: about 70x45x18mm/2.75x1.77x0.71in Package Includes: 1PC Double Battery Parallel Module note: 1cm=10mm=0.39inch Due to problem of lighting effect, there mightbe certain tolerances in product, please understand. Please allow 0-1cm error due to manual measurement.