I really did NOT like this Power Bank Case! It does NOT charge my devices. NOT. It does charge batteries. We tried different cables, we tried different batteries. It does NOT work. I do not recommend buying it.
Sale
21700 Power Bank Case with PD 20W Fast Charging & Detachable Cable
Price range: $7.96 through $8.03
DIY-friendly 21700 power bank case featuring solder-free assembly, 20W PD output, built-in detachable Type-C cable, and multiple safety protections.
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Estimated Delivery Time3–7 business days
Compact DIY Power Bank Case
Designed specifically for single flat-top 21700 batteries, this lightweight case provides a safe and easy way to build your own power bank. The eco-friendly plastic housing is available in black or gray, blending durability with style for daily use.
Its compact size makes it perfect for outdoor activities, commuting, or on-the-go charging needs. The removable casing simplifies battery replacement and circuit board maintenance, extending the product's service life.
Fast Charging Technology
Equipped with USB fast-charging and Type-C bidirectional ports, the case supports up to 20W Power Delivery output. This ensures efficient charging compatibility with most mainstream Type-C devices and enhances your device's battery recharge speed.
- 5V/2A, 5V/3A, 9V/2.2A, 12V/1.67A charging parameters
- 10V/2.25A output for optimized performance
- Green indicator light to show fast charging in progress
Innovative Detachable Cable
The built-in Type-C cable features a detachable dual-wire design, allowing convenient storage and helping prevent cable loss during travel or daily use. Both ends of the cable utilize Type-C connectors for seamless connection.
This cable solution elevates portability and convenience, ensuring you always have your charging cable at hand.
Safe and Reliable Protection
Multiple built-in safety features protect against overcharge, over-discharge, overvoltage, and overcurrent risks. This reliable protection ensures user safety and battery longevity while powering your devices.
Key Specifications
- Housing Material: Eco-friendly plastic
- Housing Color: Black or Gray
- Recommended Battery: 1 flat-top 21700 battery
- Charging Ports: USB fast-charging and Type-C bidirectional
- Built-in Cable Interface: Dual Type-C connectors
- Charging Parameters: 5V2A/5V3A/9V2.2A/12V1.67A
- Output Parameters: 5V2A/5V3A/9V2.2A/12V1.67A/10V2.25A
- Battery Level Indicator: 4 LED lights showing charge status
What's in the box
- Power Bank Housing Case (without battery)
Discussion
4.0
Based on 4 reviews
Nicely made, good and useful gadget. I recommend it. Bought before they introduced the €3 customs duty, do something about it because it will ruin all trade.
Ok
Power Bank Case for 21700 batteries. Fast charging 22.5 W works without problems. Green LED during fast charging. Easily replaceable 21700 batteries. Sturdy casing, twistable, very good quality. All this in a minimalist size. Great item. Fast delivery to the parcel locker arrived in a week. I recommend.
