Oaqmvgin battery Pack Case 4x18650 waterproof USB housing bike Lamp Compact with output, fits lamps and headlights, delivering 8.4V power.

Compatible with 4x 18650 Batteries:Specially designed to hold four 18650 rechargeable batteries (batteries not included), this pack provides a reliable power solution for high-output bicycle lamps, LED headlights, and other outdoor lighting equipment, extending your riding and working time. Ideal for Bicycle Bike Lamps:Engineered for bicycle lighting systems, the battery case is suitable for most bike lamps and headlamps using an external 18650 battery pack. It delivers consistent power for road cycling, mountain biking, and night commuting, ensuring better visibility and safety. Shockproof and Dustproof Housing:The robust casing offers shock resistance to protect batteries from bumps and vibrations while riding on uneven terrain. Its dustproof structure helps prevent dirt and debris from entering the case, improving overall reliability and battery lifespan. Secure Cable and Port Layout:Designed with a practical cable outlet and secure sealing points, the battery pack case makes wiring more convenient while keeping the connection tight and protected. This helps maintain stable current output for your bike lamp or other compatible devices. Waterproof Design:This 4x 18650 battery pack case features a waterproof housing that effectively protects your batteries from rain, splashes, and moisture during night riding and outdoor activities. The secure cover helps keep your power source safe and stable in various weather conditions.