Alza discounted a great 25,000mAh power bank to under 1,200 CZK. It has excellent ratings and can even charge your laptop

Looking for a power bank with solid capacity and enough power to charge a laptop, without breaking the bank? You can currently get the AlzaPower WorkMate 25000mAh for 1,189 CZK with the discount code ALZADNY30, which is 30% less than its usual price. The model has been on sale since last autumn and has gained a solid reputation among users during that time.

Quick Summary:
✅ Makes sense if you need to charge a laptop on the go or want a power bank you can take on a plane.
⚠️ Consider if you have a Samsung with 45W charging – the power bank will deliver a maximum of 27 W due to a missing voltage profile.
💡 For 1,189 CZK you get 140W output, 25,000 mAh capacity, an LCD display, and Low Power Mode for watches – this is a hard-to-beat offer in this price category.

Why this power bank is interesting

This power bank from AlzaPower targets those who need to charge a laptop without access to a power outlet. With a power output of up to 140 W on the USB-C2 port (Power Delivery 3.1), it can power even powerful laptops with USB-C charging. The capacity of 25,000 mAh (90 Wh) is just below the 100 Wh limit allowed by airlines for carry-on luggage.

Charging: three ports and intelligent power distribution

The power bank features two USB-C ports and one USB-A. USB-C2 can output up to 140 W (28 V / 5 A), USB-C1 then 65 W, and USB-A 22.5 W. When charging all three devices simultaneously, the power is distributed as 100 W (USB-C2) + 20 W (USB-C1 + USB-A).

Smart IC technology automatically recognizes connected devices and adapts the optimal power output to them. Supported standards include Power Delivery 3.1, Quick Charge 3.0, Samsung AFC, Huawei FCP, PPS, and Apple 2.4A. The power bank itself charges in approximately 2–3 hours (when using a 100W charger).

Practical aspects: display, Low Power Mode, included in package

The LCD display on the front shows the current battery status, active USB ports, and also voltage (V) and power (W) – alternating for each port separately with an update approximately every 7 seconds. The dimensions of 160 × 82 × 28 mm correspond to the capacity, and the body is made of flame-retardant material according to UL94 standard.

A practical feature is the Low Power Mode for charging watches and headphones – activated by holding the button for 5 seconds (indicated by a rotating animation in the last digit). Safety is ensured by 6-fold protection against overvoltage, overload, short circuit, overheating, overcharging, and undervoltage. The package includes a USB-C cable with an E-marker chip supporting 50V/5A.

What users say

On Alza, the power bank has a rating of 4.6 out of 5 (40 reviews) and 88% of customers recommend it. Over 1,000 units have been sold with a low return rate of 0.49%. Users most often praise the capacity, high charging power, and quality included cable. One reviewer writes: “The power bank delivers exactly what Alza declares. It is capable of providing power and maintaining a reasonable temperature.”

Critical voices appear regarding a few details. One user measured a real efficiency of 77% instead of the expected 80–85%, which means a usable capacity of around 70 Wh instead of the declared 90 Wh. Important note for Samsung owners: phones with 45W charging will only charge at 27 W because the power bank does not have the 11V/4.05A voltage profile that Samsung requires. The display also scratches easily, and the battery status in percentages is, according to some reviews, only approximate.

If you don’t need such high power, there is also a 20,000 mAh variant with 100 W for 909 CZK. Other discounted power banks can be found in the current Alza Days.

Verdict: who it’s worth it for

If you need to charge a laptop on the go or are looking for a high-power power bank that you can take on a plane, this discount is definitely interesting. For 1,189 CZK, you get 140W output, 25,000 mAh capacity, an LCD display, Low Power Mode, and a quality cable included. On the other hand, if you have a Samsung with 45W charging or care about maximum efficiency, it’s worth considering alternatives – although at this price, competition is limited.

Looking for another power bank or accessories? We recently wrote about these deals 👇

• Alza’s new power bank has already been discounted. It has a color display, 10,000 mAh, and an attractive design
• A popular 30,000 mAh power bank discounted to under 700 CZK. It can charge a phone multiple times and has a display
• Alza discounted its MagSafe power bank. It’s thin and has solid ratings
• 100 W power bank for 909 CZK. Alza discounted its 20,000 mAh model to a minimum

Do you charge your laptop from a power bank, or is phone charging sufficient for you? What is more important for you when choosing?