Mini DIY Power Bank Kit – Stainless Steel 1× 18650 Battery Holder, Detachable Case & USB Charger

Specification:

1. Battery Support: 1 × 18650 3.7V lithium-ion cell (not included)
2. Charging Input: Micro USB 5V
3. Output Port: 1 × USB-A 5V
4. Output Current: Up to 1A
5. Case Material: Stainless Steel (SS) – durable & wear-resistant
6. Design: Detachable case, easy battery installation (no soldering required)
7. PCB Features: Charging & discharging control, overcharge & short-circuit protection
8. Cable: Not included (use your own USB charging cable)
9. Dimensions: Approx. 95 × 25 × 22 mm
10. Weight: Approx. 45g (without battery)
11. Color: Silver stainless steel finish

Description:

This Mini DIY Power Bank Kit features a premium stainless steel case for strength, durability, and a stylish finish. Designed for 1× 18650 lithium-ion battery (not included), it allows quick installation without soldering. The built-in PCB ensures safe charging and discharging, with overcharge, over-discharge, and short-circuit protection. Compact and portable, it’s perfect for making your own budget-friendly backup charger—just add your battery and use your own USB cable.

Application:

1. DIY portable power banks
2. Emergency phone charging
3. USB-powered gadgets
4. Electronics learning projects
5. Backup power for travel