Reviews AlzaPower Urban 20000mAh Power Delivery (35W) grey
Interested in reviews of AlzaPower Urban 20000mAh Power Delivery (35W) grey? It got 4.5 out of 5 stars from our customers. Find specific customer reviews of AlzaPower Urban 20000mAh Power Delivery (35W) grey below. We will appreciate if you also share your experiences with AlzaPower Urban 20000mAh Power Delivery (35W) grey after purchasing.
AlzaPower Urban 20000mAh Power Delivery (35W) grey
In stock > 5 pcs
29.99 €
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Anonymous customer
Rated 13/09/2026, variant AlzaPower Urban 20000mAh Power Delivery (35W) grey
Verified purchase
I bought the power bank mainly for my job as a courier, where it's important for me to keep my phone constantly charged. I was most surprised by the combination of 20,000 mAh, 35W power, and a weight of around 295g. For such a capacity, it's really small and light. The integrated USB-C cable is a big plus. I don't have to look for a cable in my backpack every time, and after use, I just put it back in its holder. It can also be used as a small loop for carrying the power bank. The display with the battery percentage is, in my opinion, one of its best features. I can see exactly how much power is left, instead of guessing from a few LEDs. In the future, however, I would appreciate it if the display also showed other data. I verified the 35W output using a smart cable, and the power bank was indeed able to deliver approximately the declared 35W. I also appreciate the ability to charge the power bank itself with up to 35W. Overall, I am very satisfied with the power bank. For a price of around 580 Kč, I think it offers a very good balance of capacity, power, size, weight, and features. I see the biggest room for improvement in the length and choice of the integrated cable and in the display's capabilities.
35W power – according to a smart cable measurement, it really can deliver up to 35W.
20,000mAh / 77Wh – a large capacity in a surprisingly small body.
Low weight – my scales showed approximately 295g, the manufacturer states 297g.
Compact size – for a 20,000mAh power bank, it's really small.
Integrated USB-C cable – means I don't have to carry another cable with me.
• 🧼 The integrated cable also serves as a loop – thanks to the attachment in the small eyelet, the power bank is easy to carry.
35W power bank charging – a faster energy top-up.
The display with the exact battery percentage is significantly more practical than the classic LEDs.
Low-energy mode – suitable for low-consumption devices.
More eco-friendly packaging.
Good price – for approximately 580 Kč, it's very good value for the features.
Nice design – the grey, square finish looks modern and high-quality.
You can't choose the type of integrated cable – I would have welcomed the option to select, for example, USB-C → USB-C or USB-C → Lightning.
The display could show more information – for example, the current power in W, voltage, current or the remaining time.
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Anonymous customer
Rated 04/09/2026, variant AlzaPower Urban 20000mAh Power Delivery (35W) grey
Verified purchase
size (very compact), capacity and charging speed for the price
built-in USB-C cable
An extra USB-C cable (shorter) in the package
The cables are a bit short (makes it harder to use, for example, your phone while it's charging)
Doesn't show the current percentage completely accurately (it can show the same value for several minutes and then quickly drop by a few or even tens of percent (depending on the type of device being charged)
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Tomáš, Kladno
Rated 15/08/2026, variant AlzaPower Urban 20000mAh Power Delivery (35W) grey
Verified purchase
super
light
Sometimes it's a pain to charge, but it does charge.
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Jan, Praha 4 - Háje
Rated 15/08/2026, variant AlzaPower Urban 20000mAh Power Delivery (35W) grey
Verified purchase - review from a price comparison website
They'll last a long time.
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Milada, Holýšov
Rated 06/07/2026, variant AlzaPower Urban 20000mAh Power Delivery (35W) grey
Verified purchase - review from a price comparison website
Satisfaction: )
Tiny, powerful, shows what percentage of battery life is left – I’m delighted: )
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David, Praha
Rated 15/05/2026, variant AlzaPower Urban 20000mAh Power Delivery (35W) grey
Verified purchase - review from a price comparison website
A great lightweight powerbank with enough capacity for a weekend in the countryside or in the city. Super fast charging and small compact appearance and size.
It is incredibly light for its 20,000 mah capacity.
Fast charging + super fast charging for Samsung
Integrated cable
One USB + USBC
NOTHING
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Tomáš, Ostrava
Rated 13/05/2026, variant AlzaPower Urban 20000mAh Power Delivery (35W) grey
Verified purchase
Transducer efficiency is 84%
Really small against the competition
One of the lightest 20.000mAh powerbanks - 295g
Display (even though the last % goes down by leaps and bounds)
Price
Integrated cable may bother some people, looks awkward
Realistically, it delivered 12,470mAh at 5V (remember that 20,000mAh is at 3.7V)
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Miroslava, Luštěnice
Rated 12/05/2026, variant AlzaPower Urban 20000mAh Power Delivery (35W) grey
Verified purchase - review from a price comparison website
Small and compact for trekking
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Petr, Praha 2 - Nusle
Rated 10/05/2026, variant AlzaPower Urban 20000mAh Power Delivery (35W) grey
Verified purchase
small
light
large capacity
usb-c connector absolutely does not stick
it's practically useless to me
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Jan, Věstoňovice
Rated 10/05/2026, variant AlzaPower Urban 20000mAh Power Delivery (35W) grey
Verified purchase
the lightest 20 Ah budget powerbank
35 watt is awesome and it actually gives those 35 as stated (measured with a smart cable)
only 295g (not 297 as stated)
theoretically the lightest 20Ah you can get (even the carbon nitecore weighs 293 g (but it doesn't have an integrated cable, so it would be heavier with it)
really small
35w also charges
display with percentages
low energy mode
eco packaging
product description
construction and design integrated cable can also be charged
price (580 CZK)
charged to about 70% I don't know exactly
the cable could be at least 5 cm longer, right
the display could show more information
the supplied cable should be C to C in 2026 and not A to C as they give
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