DIY 20000mAh Power Bank Case for 8×18650 Batteries

This portable power bank case accommodates eight 18650 batteries offering a total capacity of 20,000mAh. Designed as a DIY kit, it requires users to install their own batteries with correct polarity to ensure safe operation.

Its lightweight build (108g) and compact dimensions (162mm × 81mm × 22mm) make it ideal for custom portable charging solutions.

Equipped with both Type-C and Micro USB input ports, this case allows flexible and convenient charging options depending on your available cables and devices.

• Type-C input for modern compatibility
• Micro USB input for universal use

An integrated digital tube display provides accurate real-time battery status so you always know your power level.

Two LED lights indicate charging and power status, with a double-press button to toggle illumination for convenience in low light.

• Digital display accurately shows remaining charge
• Dual LED indicators for charging and power status
• Button-controlled LED on/off functionality

Ensure that all 18650 batteries are installed with correct polarity to avoid damage.

The device is professionally tested; however, incorrect installation may cause burning or failure, which is not covered by returns.

• Capacity: 20,000mAh
• Battery Type: 8 × 18650 (not included)
• Dimensions: 162mm × 81mm × 22mm
• Weight: 108 grams
• Output: 5V/2A max
• Inputs: Type-C and Micro USB ports
• Color options: White and Black

• DIY Power Bank Case Box