Anker PowerCore 10000
- 10,000 mAh capacity
- Input: 5V/2A; Output: 5V/2.4A
Pros: Ultra-compact, MultiProtect safety
Cons: Single USB port
Buy on AmazonBest Portable Power Banks Under $30 for 2025
Never run out of juice—our picks deliver reliable, high-capacity backup power for under $30.
Kesguar 20 000 mAh Portable Charger
- 20 000 mAh capacity
- 22.5 W Power Delivery & QC4.0 fast charging
- USB-C & USB-A simultaneous output
Pros: Rapid 22.5 W charging, built-in detachable USB-C cable
Cons: Heavier than 10 000 mAh banks
Buy on AmazonVRURC 2-Pack 10000 mAh Portable Charger
- 2× 10 000 mAh power banks with LED battery indicator
- 18 W USB-C Power Delivery & QC 3.0 outputs
- Compact, airline-approved Li-polymer design
Pros: LED display for precise level checking, dual simultaneous outputs
Cons: Bulkier as a 2-pack compared to single units
Buy on AmazonXiaomi Mi Power Bank 3 Ultra Compact, 10000 mAh
- 10 000 mAh high-density Li-Po cell
- Two-way USB-C PD 22.5 W & USB-A QC 3.0 output (18 W)
- Ultra-compact, airline-approved design
Pros: Slim metal shell, simultaneous PD+QC fast charging
Cons: No built-in cable or digital battery indicator
Buy on AmazonBuyers’ Guide: What to Look For
- Capacity (mAh): More mAh = more charges, but larger size.
- Output type & wattage: USB-C PD vs. USB-A Quick Charge.
- Recharge speed: How fast the bank itself refills.
- Portability: Weight, dimensions, and build quality.
FAQ
How many mAh do I need?
For most phones, 10,000 mAh gives ~2 full charges; laptops need ≥20,000 mAh.
Can I charge and use at the same time?
Only banks with passthrough charging support simultaneous in/out charging.
Is USB-C PD worth it?
Yes—PD lets you charge compatible devices much faster than standard USB-A.