The ultimate solution for your portable power needs, the Xuanxi Waterproof Aluminum Alloy Storage For Case Holder is a must-have accessory for any electric bike enthusiast. This rugged storage box is designed to keep your 4X AA battery pack safe and secure while you're on the go.

Made from high-quality aluminum alloy, this case holder boasts excellent durability and weather resistance, making it perfect for use in wet or snowy conditions. The waterproof coating ensures that your belongings are protected from moisture and damage.

The storage box has a convenient USB charging port at one end, allowing you to charge your device on the go. Additionally, it features multiple shelves and compartments to keep your belongings organized and easily accessible. The sturdy design makes it easy to attach to your bike or use as a freestanding stand.

Whether you're commuting, touring, or just storing your gear in between rides, this case holder is an essential item for any electric bike enthusiast. Its compact size and versatility make it the perfect accessory for anyone looking to upgrade their bike storage setup.