Portable power banks have become indispensable travel companions. But in 2025, with fast charging standards everywhere, picking the wrong one means slow top-ups when you need speed most. Here's everything you need to know.
Capacity: How Much Do You Actually Need?
- 5,000–7,000mAh: One full phone charge. Ultra-compact, fits any pocket
- 10,000mAh: The sweet spot — two to three charges, still pocketable
- 20,000mAh+: For tablets, laptops, or multi-day trips. Heavier but powerful
Fast Charging Standards to Look For
Not all power banks charge at the same speed. Look for these standards:
- USB Power Delivery (PD): The universal standard. 20W+ charges most phones quickly
- 45W–65W PD: Fast enough to charge many laptops
- Proprietary fast charge: Very fast — only works with compatible devices
Best Power Banks of 2025
Anker Prime 20,000mAh
200W output, charges laptops and phones simultaneously, digital display showing exact battery percentage. The premium choice.
Baseus Blade 100W
Ultra-slim laptop charger in a power bank form factor. Brilliant for MacBook and iPad users.
Anker 522 (10,000mAh)
The best budget option — compact, reliable, 22.5W output. Recommended for everyday carry.
What to Avoid
Avoid unbranded power banks with inflated capacity claims. A "30,000mAh" bank selling for £10 will perform closer to 10,000mAh in real use. Stick to Anker, Baseus, Belkin, or UGREEN for reliability.
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