Portable 22.5W Fast Charging Power Bank DIY Kit 21700

4.0 · 4 reviews
Price range: $8.17 through $8.20
Pay now, in 4 interest-free payments of $2.04, or over 3–6 months
4 interest-free payments of $2.04

DIY power bank kit with no soldering required, supporting 22.5W fast charging and 21700 lithium batteries. Includes eco-friendly casing and charging lanyard.

↗
Estimated Delivery Time3–7 business days

Compact DIY Power Bank Kit

Easily create your own portable power bank without soldering. Designed for hobbyists and beginners, this kit supports straightforward installation using a 21700 lithium battery.

The eco-friendly plastic casing is available in eye-catching grey with orange or red accents, making your power bank stylish and durable.

High-Performance Battery Compatibility

Supports flat-top 21700 lithium batteries providing extended runtime for high-power devices.

Ensure correct battery polarity during installation; the spring terminal acts as the negative connection.

Fast and Convenient Charging

Up to 22.5W bidirectional fast charging reduces wait time for top-ups.

Equipped with dual Type-C connectors for 20W input and 22.5W output charging capacity.

Portable and User-Friendly Design

Includes a handy charging cable lanyard for convenient carrying and easy travel.

Casing is easily disassembled allowing quick battery replacement or circuit maintenance to extend product life.

Key specifications

  • Casing Material: Eco-friendly plastic housing
  • Color Options: Grey with Orange or Grey with Red accents
  • Battery Compatibility: 1 flat-top 21700 lithium battery
  • Charging Interface: Dual Type-C connectors
  • Input Power: 20W Type-C
  • Output Power: 22.5W Type-C

What's in the box

  • Power bank casing ×1
Categories
Tags, , , , ,
Weight—
AvailabilityIn stock
SKUGA_103251

Discussion

4.0
Based on 4 reviews
Rating
Mysterious Shopper July 16, 2026 ★ ★ ★ ★ ★

Regular materials, nothing special for the price, looks fragile but does the job.

Mysterious Shopper May 21, 2026 ★ ★ ★ ★ ★

It seems like someone returned the item I was using and sent it back to me after blocking it.

Mysterious Shopper May 20, 2026 ★ ★ ★ ★ ★

It looks a bit weak, but it charges quickly and efficiently.
I need to use it a bit more, but I'm satisfied for now.
However, there are some parts that seem like they might break if dropped.
I bought this product because I dropped another product and broke the battery cover.
I guess I should use it carefully so it doesn't fall.
Other than that, it charges well and is small and very nice.
I need to buy more 21700 batteries.
I bought two just in case.

F***I May 12, 2026 ★ ★ ★ ★ ★

It's cheap and good.