The Anker 737 is a higher-capacity power bank aimed at people who need a real day’s worth of backup charge, not just a top-up. Tested through daily use including extended time in a car glovebox — a genuine stress test for battery electronics in Kuwait’s summer heat.
Build and Portability
The case is solid without feeling overbuilt — a small digital display shows exact remaining charge percentage and wattage output, which is more useful day to day than the usual four-LED-light guess. It’s noticeably bulkier and heavier than slimline power banks in the same price range, a direct trade-off for the higher capacity.
Charging Speed
Fast-charges phones and laptops via USB-C at a genuinely useful speed, and can charge two devices simultaneously without a dramatic drop in either speed. Recharging the power bank itself from empty is faster than most competitors in this capacity class.
Capacity in Real Use
Comfortably covers a full day of heavy phone use with charge to spare, or a couple of full phone charges plus a laptop top-up. Real-world capacity tracks closely with the rated figure rather than falling short, which isn’t always the case with power banks at this price point.
Durability in Kuwait Heat
Left in a car glovebox through repeated hot afternoons over several months, battery health showed less degradation than typical power banks tested the same way — a meaningful difference given how common glovebox storage is here.