Over the past couple years, I’ve tested around 60 different power banks for Engadget. In that time, battery manufacturers have given their products features with varying degrees of usefulness, ranging from smart (straps and built-in cables) to handy (displays and wireless charging pads) to really not necessary (Bluetooth connectivity, specialized recharging bases).
Anker’s Laptop Power Bank (25K, 165W) manages to combine all the cleverest new features into one sleek-looking charging brick — and it costs less than some other banks in its class. There’s a built-in display that not only lets you know how much charge the bank has left, it also tells you how many watts are flowing through each port to your devices. Pressing the button on the side cycles through the battery’s current temperature and the overall health of the bank, including how many charge cycles it’s gone through. All of those bits of info should help prolong and gauge the bank’s longevity.
Big capacity in a tidy package
The 25,000 mAh capacity puts it well within the TSA’s 100Wh capacity limit and I have taken this battery on two flights in my carry-on with no issue. The capacity is enough to fill my tester smartphones (an iPhone 15 and a Galaxy S23 Ultra) around four times each. Separately, it pushed my aging 16-inch MacBook Pro from 10 percent to 78 percent. That translates to around nine additional hours of use for my typical workload (Wi-Fi, VPN, too many Chrome tabs and other basic productivity apps).
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My only gripe with the design is that the very shiny screen has become slightly dull with use. It doesn’t look bad, just not as mint-fresh as when it was unboxed. That’s to be expected, and I’ll take the luxe finish over some ruggedized enclosure any day.
Two built-in cables and a big capacity let you charge two devices at once. (Amy Skorheim for Engadget)
Sure, forget your cables at home
Possibly the power bank’s most useful features are the two built-in USB-C cables, and one even loops around to create a handy carry strap. It feels robust and well-anchored enough that I don’t fear lugging it around like that. The other cable retracts into the unit and extends up to two feet when needed. The end stays neatly tucked into a well in the body and stays magnetically in place. The cords not only look tidy, their inclusion means you’ll never find yourself in the ironic position of having a dead device and a full battery pack, but no way to connect the two.
Both cables serve in-out functions so you can easily plug them into any USB-C power adapter for a refill. There are also two additional USB (one Type-A and one Type-C) ports, so if you’ve got a specialized cable, such as Lightning, smartwatch or microUSB connector, you’ll be able to charge those devices too.
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