22.5W Fast Charging Power Bank Case DIY Kit with Display

Experience 22.5W super fast charging with this DIY power bank kit. It supports bidirectional Type-C fast charging compatible with various devices, delivering quick and efficient power on the go.

The kit includes a smart fast charging chip compatible with most public fast charging protocols, ensuring compatibility across many smartphone brands.

No welding needed—install two 21700 rechargeable batteries in parallel easily, with clear positive and negative markings for safe assembly.

A matching sponge adhesive helps secure batteries of varying sizes, preventing poor contacts and power interruptions.

• Compatible with 2 x 21700 batteries (not included)
• Anti-reverse protection safeguards the motherboard from damage
• Digital display shows real-time battery level after activation

The mainboard offers multiple protections including overcharge, overdischarge, overvoltage, overheating, and short circuit prevention, ensuring device and user safety.

Built-in high conversion rate circuitry delivers stable current and voltage for reliable performance.

• Overcharge and discharge protection
• Overvoltage and overheating safeguards
• Stable current and voltage output

Motherboard size is approximately 16 x 21 x 17mm, making it lightweight and portable for easy carry.

Comes with clear assembly instructions and includes essential accessories for quick setup.

• Includes USB-C to USB-C and USB-A to USB-C cables
• Hanging rope storage buckle for convenience
• Sponge glue for battery stabilization

• Input: 5V 2A/3A, 9V 2.2A, 12V 1.6A
• Output: 5V 2A/3A, 9V 2.2A, 12V 1.6A, 10V 2.25A
• Fast charging chip: Zhirong S620
• Motherboard dimensions: 16x21x17mm

• Quick charging welding-free battery box x1
• Hanging rope storage buckle x1
• Type-C to Type-C charging cable x1
• USB-A to Type-C charging cable x1
• Sponge glue x1