Portable power banks for travel in 2026 — real-world test, not spec sheets
The portable power bank market is full of misleading specs and questionable brands. After bringing six different models on long international flights and weekend road trips, I've sorted them into three buckets: keepers, decent backups, and avoid-at-all-costs.
What TSA actually allows
Anything under 100Wh fits in carry-on. That's about 27,000 mAh at 3.7V — most consumer power banks. Anything over 100Wh and under 160Wh requires airline approval. Over 160Wh is straight banned. Practical takeaway: stick to 26,800 mAh or below for stress-free travel.
The keeper: Anker 737 PowerCore 24K
The Anker 737 is the best 25,000 mAh power bank in 2026. Genuine 25,000 mAh capacity, 140W USB-C output (charges a MacBook Pro), built-in display showing exact watts in and out. Around $120-150. Heavy at 1.4 lbs but you're getting laptop-class power.
The lighter pick: Anker Prime 27,650
The Anker Prime 27,650 is similar capacity but 250W output, slightly lighter. $180-ish. Worth it if you're charging multiple devices simultaneously — a phone, a laptop, and a tablet on a long flight.
The budget pick: Baseus 65W 30,000 mAh
The Baseus 30,000 at $65 is the budget hero. Capacity is honest, 65W is plenty for a laptop in a pinch, charges fast. Build quality is fine, not great. Two-year purchase rather than five-year. Worth it if this is your first power bank and you don't know yet what features you'll actually use.
What to skip
Anything from a brand you don't recognise at $25 for 30,000 mAh. The capacity is fake. I tested two and they delivered 60% of claimed capacity. Same for the Wirecutter bottom-tier picks — fine for $10 saved but you'll re-buy in 18 months.
The cable problem
You also need quality cables rated for 100W+. The cheap cables that came with old phones max out at 60W and bottleneck your charging. Get two Anker USB-C 100W cables at $15 each. The whole power bank's spec is meaningless if the cable can't carry the watts.
The airport scam
The power banks at airport newsstands are universally overpriced and underperforming. €70 for a no-name 10,000 mAh is standard. Buy before you fly. If you forget, an Anker 10,000 on eBay shipped next-day to your destination hotel beats anything at gate D27.
Honest pick
For one trip: Baseus 30,000 mAh ($65). For multi-trip use: Anker 737 ($130). Don't go above 27,000 mAh unless you specifically need it — you'll fight every airline check-in counter for the rest of your travel life.
