Anker ·26,250 mAh
A 26,250 mAh power bank rated at 99.75Wh, just under the common 100Wh cabin limit, with 300W total output and 140W from one USB-C port.
Research-based assessmentOfficial specifications and documented evidence. Not hands-on tested. Research score only. Not a Travistello Pick.
The short answer
The most capable battery in this shortlist on paper, and the one that carries the most rated energy while still being described as flight-approved. It asks for the highest price and the most packed weight in return, and its 99.75Wh rating leaves almost no margin against the common 100Wh limit.
Travistello research score
Research-based, using Travel Power Bank Research Model v1.0. No physical test is implied.
The documented 300W total output, 140W single USB-C output, and 250W two-port input are the strongest figures in this shortlist. A single port accepts 140W, or 150W using Anker's own protocol. Sustained delivery and recharge time are not independently measured.
30% of overall scoreAnker publishes the rated energy as 99.75Wh and describes the product as flight-approved, which is stronger evidence than a capacity figure alone. That rating sits 0.25Wh below the 100Wh threshold most carriers apply, so the margin is very small. Travistello has not verified acceptance for any specific airline, airport, or route.
25% of overall score99.75Wh at 600 g is roughly 166Wh per kilogram, below the UGREEN at about 175. It carries the most energy of any option here, but it is also the heaviest.
20% of overall scoreTwo USB-C ports, one USB-A port, a status display, and Bluetooth app control match the strongest documented interface in this set.
15% of overall scoreThe observed $229.99 official price is the highest here by a wide margin. A documented 24-month warranty and the app controls are part of what that buys, and the pack carries the most rated energy in the set. Without hands-on proof of sustained performance, value remains the lowest-scoring dimension on this card.
10% of overall scoreNormalized specifications
Variant: 26K, 300W · SKU A110A
Evidence & methodology
A 0 to 10 research model for travel power banks. Flight readiness (25%), charging performance (30%), capacity to packed weight (20%), ports and usability (15%), and value and ownership (10%) are scored from time-stamped official specifications. Scores do not claim independent charging efficiency, sustained-output, thermal, or cycle-life testing.
