Anker Laptop Power Bank 25K Review
I bought this in July 2025 and it has been in my bag almost every day since. I work out of coffee shops a lot and tend to get stuck in one for hours, so a dead MacBook is a real problem, not a hypothetical one. This is also the first power bank I have ever owned. I am not a big phone user, and until this one there was nothing I wanted to carry that could properly charge a MacBook Pro. There were 25,000 mAh banks before, but not in a form factor like this.
Usability & Features
The two built-in USB-C cables are the feature that sold me and the feature that kept me. One doubles as the carry strap, the other retracts and extends so you can charge a device sitting further away from the bank. Between them I carry zero loose cables and can still charge the laptop and phone at the same time.
The output is the other half of the story. With 165W total and up to 100W per port, it does not just slow the MacBook's drain, it pushes the charge up to full while I keep working. It gets quite warm doing that, but it does it. A full bank gives roughly one full MacBook Pro charge, depending on how old your battery is and how heavy the work, and a phone charges many times over. In practice that means a full day of work without thinking about battery at all.
Recharging the bank itself has never been a bottleneck. Anker rates the input at up to 100W, reaching 30% in about 20 minutes, and I have simply never had trouble topping it up between uses. The live display shows battery level and throughput. It is useful, though honestly I could live without it.
The 25,000 mAh capacity sits just under the 100Wh airline carry-on limit, and this is where it has genuinely saved a day: get seated on a budget airline with no sockets and this thing lets you work through the whole flight. Airport security has pulled it out for a closer look a couple of times, but it has never been an issue. It has the same "lives in the travel bag" role for me as the Nitecore EDC37, gear you stop thinking about until it saves you.
Aesthetic & Design
There is no way around it: 595 g is heavy and the size is closer to a thick sandwich than a deck of cards. If you pack ultralight, this is a real cost. My take after a year is that the power backs it up, and I have not yet spotted anything lighter or smaller with the same punch. The day something matches this output at half the weight, I will reconsider. Until then the cable-as-carry-strap detail does a lot of work, making it easy to grab off a table and pleasant enough to have sitting next to the laptop all day.
Durability & Care
A year of near-daily carry and nothing has broken, worn, or degraded that I can tell. The retractable cable still retracts, the strap cable shows no fraying, and capacity has not noticeably dropped. The one quirk worth knowing: when it runs hot during heavy laptop charging, it ramps the output down to manage the temperature. It is noticeable but has never been a serious issue, the MacBook still ends up charged. No maintenance beyond charging it.
Final Thoughts
Would I buy it again at the full 119.99 USD? Yes, and that is the whole review in one line. It solved a problem nothing else in this form factor solved: working a full day from cafes, or through a socketless flight, without battery anxiety.
Who should skip it: if you only need phone top-ups, this is pointless, get something small and pocketable instead. And if you count grams in your pack, 595 g of insurance is a lot, though good luck finding anything lighter that can actually make a dent in a MacBook Pro battery.
