Power Bank Case Battery Box Mobile Phone Charger DIY Shell Case Charging Storage Case

This DIY Power Bank Battery Holder Case is designed for 3×18650 flat-head lithium batteries (not included). With dual USB output and Micro + Type-C input, it allows you to charge multiple devices at once. The transparent design makes it compact, stylish, and convenient for everyday use or outdoor activities. No soldering required—just insert the batteries and start charging.

Important Notice:

• This is a DIY set (case + circuit board), not a finished power bank.

• Batteries are not included (requires 3×18650 flat-head batteries).

• All batteries must have the same capacity for proper function.

• Insert correctly: shrapnel = positive, spring = negative.

• Once assembled and closed, the case cannot be reopened.

Specifications:

• Battery Capacity: Holds 3×18650 flat-head batteries (not included)

• USB Output: DC 5V/2A

• Micro Input: DC 5V/2A

• Type-C Input: DC 5V/2A

• Size: 8.75 × 7.6 × 2.4 cm

• Material: Durable ABS Plastic

Package Includes:

• 1 × 3×18650 Power Bank Battery Case (without battery)