It's a sinking feeling when your phone or laptop dies at a critical moment. A portable power bank is your lifeline, offering on-the-go charging for smartphones, earbuds, and even laptops. We tested 17 models to find the best for every need—from budget-friendly options to high-capacity chargers for multiple devices.
At a Glance
- Best Overall: Belkin BoostCharge Pro 3-port 20K — £79.99 at Argos
- Best Budget: Belkin BoostCharge 10K with integrated cable — £14.99 at Amazon
- Most Portable: Anker Nano — £19.99 at Anker
- Best for Smartphones: Anker Nano A1638 — £35.99 at Argos
- Best for Speed & Power: Cuktech 15 Ultra — £59.99 at Amazon
- Highest Storage: Ugreen Nexode 25000mAh 200W — £52.99 at Argos
- Best for Multiple Users: Belkin UltraCharge Pro 27K — £149.99 at Belkin
Why Trust Our Tests
We've been reviewing tech for years, relying on battery-powered devices daily. We timed how fast each power bank charged phones and laptops by 30%, using devices like Honor Magic7 Pro, Samsung Galaxy S25, and Acer Aspire Vero 16. Portability, build quality, and extra features like digital displays were also assessed.
Top Picks
Belkin BoostCharge Pro 20K delivers a great balance of fast charging, compact size, and three ports. The Anker Nano is tiny but powerful enough for phones, while the Cuktech 15 Ultra offers blazing speeds for multiple devices. For heavy users, the Ugreen Nexode 25000mAh provides ample capacity and high wattage.
Note: Always check your device's compatibility—output and connector type matter.