JOYROOM mini dual-cable power bank
Full laptop battery — pocket-sized. 20,000mAh with a smart digital display.
The JOYROOM JR-PBF29 is a black 22.5W mini dual-cable power bank with a 20,000mAh battery and a smart digital display showing real-time charge levels.
What is the JOYROOM JR-PBF29?
A direct product summary for faster buying decisions.
Quick answer
The JOYROOM JR-PBF29 is a black 22.5W mini dual-cable power bank with a 20,000mAh battery and a smart digital display showing real-time charge levels.
- Brand
- JOYROOM
- Model
- JR-PBF29
- Type
- Dual-Cable Mini Power Bank
- Capacity
- 20,000mAh / 77Wh
- Weight
- ~380 g
- Colour
- Black
Why it may suit you
Practical benefits based on documented specifications.
Smart digital display
Real-time battery percentage so you always know remaining power.
20,000mAh in a mini form factor
Massive capacity packed into a compact body — ideal for extended trips and daily commute.
Dual-cable convenience
Built-in cables mean you always have a charging cable on hand — no extra packing needed.
Check compatibility before checkout.
For the fastest supported charging, your device and cable must support the relevant USB Power Delivery or charging standard. Output is shared when several USB devices are connected.
Samsung AFC
Huawei SCP/FCP
QC3.0 fast charging
Technical specifications
Normalized product facts for easy comparison.
| Product type | Mini dual-cable power bank |
|---|---|
| Model | JR-PBF29 |
| Output power | Up to 22.5W max |
| Battery capacity | 20,000mAh / 3.85V (77Wh) |
| Rated capacity | 12,000mAh @ 5V=2.4A |
| Battery type | Polymer Lithium |
| Display | Smart digital display |
| Input/Output | Type-C two-way fast charge |
| Weight | ~380 g |
| Colour | Black |
What is in the box
- JOYROOM JR-PBF29 power bank
- Built-in dual cables
- Retail packaging
How to use it
- Confirm your device supports PD or QC fast charging for maximum speed.
- Monitor remaining charge via the smart digital display.
Common buying questions
Clear answers to important compatibility questions.
Is 20,000mAh safe to fly with?
Yes — 77Wh is within the standard airline carry-on limit of 100Wh.
Can it charge a laptop?
Up to 22.5W — suitable for light laptop charging; check your device’s minimum PD requirements.
Reviews
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