T21 Battery Storage Box 21*18650 with Flashlight Power Bank Case Battery Holder Box Dual USB 18650 Battery DIY Shell Storage

• 21PCS 18650 Battery Storage Solution This T21 Battery Storage Box holds up to 21 x 18650 batteries, offering a compact and organized way to store and transport your power cells safely and efficiently.

Integrated Flashlight & Power Bank Function Equipped with a built-in flashlight and Dual USB output, this case doubles as a portable power bank, making it ideal for emergency charging and outdoor use.

DIY Mobile Power Case for Custom Builds Designed as a DIY Mobile Power Case, this box allows users to assemble their own custom power bank using 18650 batteries, offering flexibility and personalization.

Fast Charging & High Efficiency With fast charge capability, this power bank case supports rapid charging for compatible devices, ensuring quick power delivery when you need it most.

Compact & Lightweight Design Measuring 21 x 17 x 8 cm and weighing only 0.270 kg, this storage box is easy to carry and fits neatly in bags or drawers for on-the-go use.