Build Your Own Portable Power Pack  DIY 3x 18650 Power Bank Case Shell Kit

Customise your portable charging kit with our DIY 3x 18650 Power Bank Enclosure Case! Designed for easy tool-free assembly, this DIY shell kit allows you to insert 3x standard flat-head 18650 lithium-ion rechargeable batteries to build a high-capacity portable charger for smartphones, tablets, and portable USB devices.

As shown in image_231ea0.png, this all-in-one enclosure kit features an integrated multi-cable output harness (USB-A, Type-C, Micro-USB, and Lightning connectors), eliminating the need to carry loose charging cords. The sleek front mirror casing includes a digital LED power status indicator (25%, 50%, 75%, 100%) so you always know your remaining battery capacity at a glance. Equipped with a built-in LED flashlight and lanyard strap, it is ideal for outdoor camping, emergency kits, travel, and daily back-up power.

Note: This product is an empty DIY power bank case kit (circuit board + plastic enclosure + built-in cables). Batteries are NOT included. Requires 3x flat-top 18650 rechargeable batteries.

Key Performance Features:

• Tool-Free 3x 18650 DIY Assembly: Easily pop in 3x flat-head 18650 Li-ion batteries to create a custom power bank.

• Integrated Multi-Cable Design: Includes 4 built-in charging cables (Type-C, Micro-USB, Lightning, USB-A) stored neatly on the casing (shown in image_231ea0.png).

• Digital LED Battery Power Display: Clear LED percentage panel shows 25%, 50%, 75%, and 100% real-time capacity levels.

• Built-in Emergency LED Flashlight: Integrated torch light for camping trips, night illumination, and emergency power outages.

• Compact & Travel-Friendly: Lightweight plastic casing with handy carrying strap for easy pocket or backpack transport.

 Complete eBay Item Specifics Table

eBay Item Specific	Field Value
Type	Power Bank DIY Case / Battery Charger Shell Enclosure Kit
Compatible Battery Type	3x 18650 Flat-Top Rechargeable Li-ion Batteries
Connectivity	USB-C, Micro-USB, Lightning, USB-A
Number of Ports	4 Built-In Cables + USB / Type-C Input Ports
Colour	Black (As displayed in image_231ea0.png)
Material	ABS Hard Plastic / PC Shell
Features	Built-in Cables, LED Power Display, LED Flashlight, Lanyard Strap
Input Interface	5V / 2A (Type-C / Micro-USB)
Output Interface	5V / 2.1A Max
Batteries Included	No (DIY Case Only)
Department	Electronics Accessories / Cell Phone Power Banks
Manufacturer Warranty	1 month
Items Included	1x DIY Power Bank Enclosure Shell, Circuit Board, 4-in-1 Cable Assembly, Lanyard Strap
Country/Region of Manufacture	China