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AlzaPower WorkMate 20000mAh Power Delivery (100W) black-grey - Power Bank

Reviews AlzaPower WorkMate 20000mAh Power Delivery (100W) black-grey

Interested in reviews of AlzaPower WorkMate 20000mAh Power Delivery (100W) black-grey? It got 4.7 out of 5 stars from our customers. Find specific customer reviews of AlzaPower WorkMate 20000mAh Power Delivery (100W) black-grey below. We will appreciate if you also share your experiences with AlzaPower WorkMate 20000mAh Power Delivery (100W) black-grey after purchasing.
54.90 €
In stock > 5 pcs
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User Reviews

Vladimír, Olomoucflag
Rated 27/02/2026, variant AlzaPower WorkMate 25000mAh Power Delivery (140W) black-grey
Verified purchase
Nice power bank for more energy-intensive laptops. I would certainly be happy with just 65W of output and would appreciate more efficiency or capacity. Overall, I am satisfied with it mainly for the price and I give 4 stars because of overheating and low efficiency.
The design looks fine
Capable of delivering up to 140W
Very tempting price under a thousand on sale
The display shows the delivered power
Multiple outputs, pulls everything and laptops
Low power mod charges even watches
It gets quite hot even when running at lower power (around 20W) - as someone wrote here, it will have low efficiency (I will test)
Feels heavy even at the claimed 25000mAh
The body of the power bank is plastic and easily scratched
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Anonymous customerflag
Rated 12/01/2026, variant AlzaPower WorkMate 25000mAh Power Delivery (140W) black-grey
Verified purchase
Nice processing
Does not meet the intended specification
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Tomáš, Mohelniceflag
Rated 01/01/2026, variant AlzaPower WorkMate 25000mAh Power Delivery (140W) black-grey
Verified purchase - review from a price comparison website
Nice powerbank
I guess it works.
My son took it from me, so I don't know if it works
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Anonymous customerflag
Rated 24/12/2025, variant AlzaPower WorkMate 25000mAh Power Delivery (140W) black-grey
Verified purchase
Tested - very low efficiency 77%. The resulting capacity is only 70Wh. What to expect during the test: Top quality (85% efficiency): approx. 76.5 Wh Good quality (80% efficiency): approx. 72 Wh (common standard of better brands) Average quality (70% efficiency): approx. 63 Wh Minimum: If you measure less than 60 Wh (about 65%), the power bank is either of poor quality or the cells are defective.
Tested - Except for capacity, all parameters are met
Looks nice.
It's working properly
Low efficiency only 77%
Capacity only 70Wh (90Wh in parameters)
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Radim, Hlučínflag
Rated 11/12/2025, variant AlzaPower WorkMate 25000mAh Power Delivery (140W) black-grey
Verified purchase - review from a price comparison website
Works as described
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Jakub, Zubříflag
Rated 26/11/2025, variant AlzaPower WorkMate 25000mAh Power Delivery (140W) black-grey
Verified purchase
Powerbank offers exactly what alza declares. It is capable of delivering power and maintaining a reasonable temperature, even when charging. The included cable has an E-marker chip that allows 50V/5V charging, so you can charge virtually any device with it. The capacity is very nice, it can charge three phones at once with a power of about 20w each and still have some capacity left. Too bad it resets charging while a new device is connected. The display is beautifully readable with a refresh time of about 0.5s, when you connect a second or third device, it shows the measurement for each port depending on whether C1, C2 or A1 is on and it changes about every 7s. The power bank is also suitable for air travel and thanks to its small size, it can be carried in a backpack and does not interfere in any way.
Capacity
Weight
Included cable
Power
Absence QC 5.0
The display gets scratched quickly
Power distribution
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