The answer — one pick, priced
Get the
Anker Prime 26K 300W
$70 under your budget
300W across three ports and 99.75Wh — the most energy four people can legally carry onto a plane, now $50 cheaper than in June. 15 sources.
Fit ledger — need → measured evidence
■ The catch — co-equal billing, always
You pay $100 more than our main pick for 13Wh. The Anker 737 is $80 and holds 86.4Wh; the Prime is $180 and holds 99.75Wh. The extra money buys 300W that no single device can draw, an app, and 22 oz of pack — and the desktop charging base is a separate purchase, not in the box.
Dealbreaker? The Anker 737 at $80 unless three people charge at once ↓
■ Every product has a catch. Verdicts that hide it are how bad buys happen.
Don't buy this if…
- you need a stationary backup power source for home/outdoor use (1000Wh+)solar generators dossier →
- you need a wireless charging pad or stand for desk use, not a portable batterywireless chargers qi2 dossier →
- you need a 3-in-1 desktop charging dock rather than a travel batterycharging stations 3 in 1 dossier →
Wrong product for you is still a bad buy. These are the cases where we'd send you somewhere else.
Runners-up — if your needs differ
Adjacent verdicts — other needs, same method
Different budget, different household, different job — each of these is already researched, priced and verified. Take the one that matches your need.
Traps — this verdict avoids
Why the Anker Prime 26K 300W is right for you
It avoids every trap below — and for family of 4, under $250, it is the pick because it delivers:
The 100Wh wall
Airlines regulate watt-hours, not mAh. 100Wh (~27,000mAh) is the carry-on ceiling, 101-160Wh needs explicit airline approval and is usually refused, and power banks are carry-on only, never checked. IATA's 31 March 2026 operator guidance also tells airlines to stop in-flight use, and US carriers now cap spare batteries — American at 4, Delta at 20.
mAh is not what you get
A cell is rated at 3.7V nominal; your phone charges at 5V. Expect 60-75% real-world efficiency after conversion losses — a 10,000mAh bank realistically delivers 6,000-7,500mAh to a phone, not 10,000.
Check the A-number
The CPSC recalled about 481,000 Anker power banks (A1647, A1652, A1257, A1681, A1689) on 18 September 2025 after 33 fire and explosion reports. None of the models on this page are on that list — but the model number is printed on the unit itself, and the old bank in your drawer might be.
Provenance — 15 sources, dated
Winners are picked from the full research dossier at knowledgelib.io. Prices, stock and listings are re-verified monthly.