The well-equipped Anker power bank is now extremely good value! We can recommend it ourselves

We thoroughly tested the Anker Laptop Power Bank (25K, 165W, Built-In and Retractable Cables) in our editorial office, and it proved to be a very good choice for anyone who travels with a laptop. Alza is now selling it for 1 490 Kč instead of the usual 2 190 Kč as part of Black Friday, which is 262 Kč less than during the last promotion. It boasts two built-in USB-C cables, super performance, and a color display.

Quick summary:
✅ Makes sense if you carry a laptop with you and don’t want to worry about cables.
⚠️ Consider if you mind the weight of 595 g; it’s unnecessarily heavy for just a phone.
💡 At 1 490 Kč, this is the lowest price on Alza in the last year; the previous minimum according to HlídačShopů was 1 752 Kč.

In the test, it charged a laptop with enough left for a phone

In our review, the model received a rating of 87.5%, and at the then promotional price, which was incidentally higher than the current offer, we even gave it 90%. From a single USB-C, it delivers up to 100 W, which is enough for a typical ultrabook. The declared 165 W applies to two USB-C devices (100 + 65 W); when connecting three or four devices, the total ceiling drops to 130 W. Even then, 100 W remains for a laptop and 30 W for a phone, watch, or headphones. This was confirmed in practice: it charged a completely drained Huawei MateBook X Pro with a 60Wh battery to a full 100%, and 27% of the power bank’s capacity still remained. From that remainder, we further charged a Galaxy Z Flip8 from 10% to 93%.

The manufacturer states the 25,000 mAh capacity at cell voltage, which corresponds to approximately 90 Wh. Due to voltage conversion and heat loss, the full 25,000 mAh never reaches the phone; this applies to every power bank. The advantage is that with 90 Wh, you stay below the common airline limit of 100 Wh.

Two built-in cables and a display that tells more than just percentages

The main draw is the two built-in USB-C cables. One is retractable, measures 69 cm, and slides back into the body; the other is braided and extends from the side, also serving as a loop. Both also serve to charge the power bank itself (each USB-C accepts up to 100 W), so you don’t need any cable with you, just a wall adapter. In the test, it reached 30% in 20 minutes, and a full charge took 2 hours and 10 minutes. In addition to these, it offers one more USB-C and one USB-A port, so it doesn’t forget older “A-type” cables.

The color display shows the charge status with two decimal places of accuracy, power output on individual ports, remaining time, battery temperature, and the number of charging cycles. Pass-through charging is also a welcome feature, where the power bank, while plugged into an outlet, simultaneously powers other electronics. For this, the manufacturer recommends an adapter with at least 20 W of power, which must supply more than the connected devices draw.

Customers rate it 4.8 out of 5 and praise the cables in particular

On Alza, the power bank has an average of 4.8 out of 5 from 33 ratings, and 91% of customers recommend it. Over 2,000 units have been sold, with a complaint rate of 0.52%. Buyers most often praise the built-in cables, clear display, and high performance. One customer complains that the power bank occasionally stops charging for a few minutes due to temperature during its own charging, while another criticizes that the display cannot be turned off while charging. We also encountered temperature issues in our test, though differently: after 18 minutes, it switched from 94 W to a slower 52W mode due to a heated cell.

Without a laptop, it will be more of a burden

At a weight of 595 g, it’s not a device for a short walk around town, and the plastic body doesn’t feel as durable as some competitors. Anyone who only charges a phone from a power bank would prefer a lighter and cheaper model with the same capacity and lower power output. Samsung owners with 45W charging should know that the power bank does not support 45W PPS, so the phone will charge slower than its maximum capability.

For whom it is now a clear purchase

Students who carry a laptop to school, people commuting by train with a laptop on their lap, or anyone who regularly leaves their charging cable at home. It is precisely for them that we unhesitatingly recommended the power bank in our review, and we believe the purchase would make sense even at its regular price (at which we gave it 85%), although at that price, it’s worth comparing it with UGREEN or Vention models. At 1 490 Kč, it’s an even easier decision; it couldn’t be bought cheaper on Alza in the last year.

Do you carry a power bank that can handle a laptop when you travel?