Excellent power bank on sale: Pay only 779 CZK for 100W power and a display

For four hundred crowns, you usually get a power bank that charges a phone, relatively slowly at that, and its capabilities end there. But for an extra charge, you can have a really solid model that can do much more. This power bank can even power a laptop, and it will show you on the display how many watts are currently flowing into each port. AlzaPower Vision with 10,000 mAh and 100W power now costs 779 CZK instead of 1,299 CZK with code ALZADNY40. This is its best offer to date.

Quick summary:
✅ Makes sense if you want a smaller power bank that can also charge a USB-C laptop, and you enjoy having an overview of charging on the display.
⚠️ Consider that at 340g, it’s heavier for its capacity, and according to some owners, it stops powering via USB-C once connected to a charger.
💡 For 779 CZK, you get 100W power for only 180 CZK more than the 30W version of the same power bank.

The hundred-watt version now costs only 180 CZK more than the thirty-watt version

Alza sells the ten-thousand mAh AlzaPower Vision in two versions that are indistinguishable at first glance. They differ in power. The weaker 30W version now starts from 599 CZK with the code, while the 100W version is 779 CZK. For a difference of 180 CZK, you get more than triple the power and with it the assurance that you can power a laptop. I wouldn’t hesitate long about which one to choose.

The power bank came to market last December, and in February, we wrote about its discount to 974 CZK. At that time, it was a very decent offer; today, the price is another 195 CZK lower. Compared to the usual 1,299 CZK, you save 520 CZK, or 40%, and it hasn’t been possible to buy it cheaper on Alza yet.

The display shows the power of each port and the battery cycle count

There are two USB-C ports with Power Delivery 3.0 up to 100 W and one USB-A with 30 W. In total, the power bank is rated by the manufacturer to handle 130 W and charge three devices simultaneously. In addition to Power Delivery, it also supports Quick Charge 3.0, Samsung Adaptive Fast Charge, Huawei FCP, and Apple charging at 2.4 A standard.

However, the main attraction is the color TFT display. In addition to percentages, it shows the current power on each output and input and an estimate of how much time remains until fully charged or discharged. It also hides data not commonly seen on power banks: number of charging cycles, maximum battery capacity, temperature, or total operating time. The display can stay on permanently or turn off after 30 seconds. Holding the button for about five seconds activates a mode for watches and headphones that require a low charging current.

The power bank itself charges via USB-C at up to 90 W. The manufacturer states that it goes from zero to one hundred percent in approximately one hour, but only with a 100W charger, which is not included in the package. It includes a 30cm double-sided USB-C cable and a fabric pouch. The body is aluminum, measures 141 × 45 × 35 mm, and the battery has 36 Wh.

For laptops, more like a handy last resort

To be frank: 10,000 mAh is more of an emergency brake for a laptop than a full-fledged second battery. For most machines, it will get you out of the red, but don’t expect a full charge. For a phone, tablet, or headphones, the capacity is fine. Aluminum and powerful electronics come at a cost; the power bank weighs 340g, more than most modern phones, and owners repeatedly describe it as heavier for its capacity.

It’s also good to consider how the power bank behaves during simultaneous charging. One owner of the 100W version describes that after connecting to a charger, it stops powering devices via USB-C, while USB-A continues to work. An owner of the larger 20000mAh version reports that when both USB-C ports are connected simultaneously, the power drops to 15 W. So, expect full power primarily for one device on USB-C.

Almost everyone praises the display, opinions differ on fast charging

On Alza, the power bank has a rating of 4.5 out of 5 from 111 reviews, 87% of customers recommend it, and over 1,000 units have been sold. The complaint rate of 1.7% is low. People most often praise the display, which one owner calls the best they’ve seen on a power bank, and the metal craftsmanship. Another verified that the parameters match: the power bank charged at 90 W and delivered up to 100 W.

Criticisms mainly revolve around weight and fast charging for Xiaomi. Owners of various Vision series variants write that it does not support proprietary Xiaomi fast charging, so the phone draws around 20 W; one customer also misses full speed for the Samsung Galaxy S26 Ultra. Another complains that the power bank cannot be turned off. For travelers, one review is important: the power bank does not have Chinese CCC certification, and it was confiscated from an owner at an airport in China because of this. According to another customer, a less legible label could also cause problems during regular airport security checks.

When to opt for a different power bank?

If you only charge your phone and don’t carry a laptop, you won’t utilize the 100W power and will unnecessarily carry 340g in your backpack. Conversely, those who need to properly charge a laptop will appreciate more capacity and should look for the 20000mAh version with the same 100W power, but that costs 1,799 CZK. Owners of Xiaomi phones with fast charging and those who frequently fly to China should consider the caveats from the previous section.

For those who carry a USB-C laptop, it’s sorted for 779 CZK

The AlzaPower Vision is not the lightest power bank and doesn’t excel in capacity, but for 779 CZK with code ALZADNY40, it offers laptop power and a display that turns it into a small measuring station. I would recommend it to anyone who carries a USB-C laptop or tablet and wants to be sure they can charge it in their backpack. Those who only deal with phones and care about every gram will find lighter solutions. For 779 CZK, I would go straight for the hundred-watt version; the extra 180 CZK compared to the 30W model is worth it.

Do you also charge a laptop from a power bank, or is it enough for you if it charges your phone?