At Junda Battery, we engineer high-capacity lithium battery packs specifically for electric hydrofoil (eFoil) systems. Designed to withstand the demands of water-based environments, our eFoil batteries feature advanced thermal protection, waterproof casing, and intelligent BMS integration, ensuring consistent performance, safety, and long service life on the water.
Whether you’re building a high-speed eFoil board or a long-range surf model, Junda delivers battery solutions tailored to your power, weight, and runtime goals. We support both off-the-shelf and fully custom-built eFoil battery packs, all rigorously tested for marine conditions including salt spray, vibration, and high current loads.
With years of experience in marine-grade lithium battery engineering, our team collaborates with OEMs and custom board makers to deliver scalable, efficient power solutions for all types of eFoil setups. At Junda, we don’t just supply batteries—we help you build a better ride.
Junda offers a range of reliable, waterproof, and high-discharge battery packs built with premium 21700 cells. Designed to meet the unique demands of efoils and USVs, our off-the-shelf solutions combine robust energy output with marine-grade durability.
We typically provide custom eFoil battery packs in 48V, 52V, or 60V configurations, with capacities ranging from 20Ah to 60Ah or more. Each pack is tailored based on your runtime expectations, motor specifications, and waterproofing needs.
Yes. At Junda Battery, we design marine-grade enclosures with IP67 or IP68 protection levels. These casings prevent water ingress during eFoil operation and are pressure-tested for saltwater environments.
We use premium-grade cylindrical cells (typically 18650 or 21700) from brands like Samsung, LG, or Molicel. These are selected based on energy density, discharge rate, and thermal stability.
All eFoil batteries are equipped with a smart BMS that controls cell balancing, over-current/over-voltage protection, and temperature monitoring. Additional thermal shielding and waterproof venting are added based on the use case.
Yes. Our BMS supports communication protocols such as CAN Bus or RS485. These allow real-time battery diagnostics and integration with eFoil control systems or external displays.
Absolutely. We specialize in custom-shaped lithium battery packs. You can share your 3D design or space constraints, and our team will engineer a battery pack that matches your enclosure while maximizing capacity and thermal performance.
Need a custom lithium battery pack? Just send us your specs—we’ll help you choose the right voltage, case, and configuration for your application.
At JUNDA, we make customization easy. Follow these 3 simple steps to start today:
Send your battery requirements — voltage, capacity, casing type, or upload drawings/photos.
We’ll evaluate your specs and recommend the best configuration. A detailed quote will be sent within 24 hours.
After approval and deposit, we start production. Shipping and tracking will be arranged for fast, secure delivery.
