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Portable Mini DIY Power Bank Case for 18650/21700/21650 Battery
Price range: $3.76 through $4.01
Compact DIY power bank case supports 18650/21700/21650 rechargeable batteries (not included). Features Type-C output, plug and play, universal charging.
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Estimated Delivery Time3–7 business days
Compact power on the go
This mini DIY power bank case is about the size of a lipstick, making it easy to carry anywhere. Its compact form fits comfortably in your pocket or bag for quick access to emergency power.
Designed for convenience, it includes a strap and charging cable so you can plug in and charge with minimal hassle.
Broad battery compatibility
The case supports three popular rechargeable battery sizes: 18650, 21700, and 21650. You simply install one battery directly into the slot—no welding needed.
Note that batteries are not included, so you supply your own to power the case. Make sure to insert the battery with correct polarity to avoid damage.
Universal device charging
Equipped with a USB Type-C output, this power bank case can charge multiple brands of mobile phones and other USB devices.
Charging and playing or using your device simultaneously is supported, ideal for active lifestyle use cases like travel, school, or outdoor activities.
Durable, lightweight build
Constructed from ABS plastic, the shell is sturdy yet lightweight, suitable for daily carry and use without adding bulk.
Available in several colors including white, pink, green, and black to fit your personal style.
Key specifications
- Battery support: 18650, 21700, 21650 (not included)
- Material: ABS plastic
- Colors: White, Pink, Green, Black
- Size: approx. 77 x 36 x 26 mm (3.03 x 1.41 x 1.02 inches)
Package contents
Includes one DIY power bank case shell with charging cable and strap.
Discussion
2.5
Based on 2 reviews
I thought this was a rechargeable battery power bank but it didn't come with the battery but other then that it was good
