Reviews AlzaPower Onyx Gen2 10000mAh Power Delivery (22.5W) black
Interested in reviews of AlzaPower Onyx Gen2 10000mAh Power Delivery (22.5W) black? It got 4.7 out of 5 stars from our customers. Find specific customer reviews of AlzaPower Onyx Gen2 10000mAh Power Delivery (22.5W) black below. We will appreciate if you also share your experiences with AlzaPower Onyx Gen2 10000mAh Power Delivery (22.5W) black after purchasing.
User Reviews
Zdeněk, Ostrava - Poruba
Rated 18/12/2025, variant AlzaPower Onyx Gen2 10000mAh Power Delivery (22.5W) black
Verified purchase
quality product at a great price
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Roman, Nové Strašecí
Rated 14/11/2025, variant AlzaPower Onyx Gen2 10000mAh Power Delivery (22.5W) black
Verified purchase
I bought it for my son to keep his phone from going dead outside. I got the same one, but 20,000. I'm satisfied.
fast charging
price
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Marek, Chotěšov
Rated 28/09/2025, variant AlzaPower Onyx Gen2 10000mAh Power Delivery (22.5W) black
Verified purchase
light
stamina just right
small
fast charging
sometimes she's hot
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Ondřej, Valašské Meziříčí
Rated 10/09/2025, variant AlzaPower Onyx Gen2 10000mAh Power Delivery (22.5W) black
Verified purchase
small
USB A and C ports
Recharges really well with 22.5W
cheap
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Patrik, Praha 13 - Stodůlky
Rated 11/10/2026, variant AlzaPower Onyx Gen2 20000mAh Power Delivery (22.5W) black
Verified purchase - review from a price comparison website
A standard power bank with QC3.0 and a 22.5W charging output.
Capacity 20Ah at 3.7V
Lightweight power bank
USB C and USB A
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Václav, Prostějovičky
Rated 07/10/2026, variant AlzaPower Onyx Gen2 20000mAh Power Delivery (22.5W) black
Verified purchase - review from a price comparison website
I am very satisfied with the power bank as it serves its purpose. I can highly recommend it.
Reasonable price, charges the phone battery quite quickly. So far I've charged 4 Samsung Galaxy phones, S26 ultra, S8, S22 ultra and an S4, and it's still at 50% battery, so I'm happy. It's obvious that the power bank's capacity will decrease over time with use.
Nothing
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Alexandr, Náchod 1
Rated 01/10/2026, variant AlzaPower Onyx Gen2 20000mAh Power Delivery (22.5W) white
Verified purchase - review from a price comparison website
It can charge my phone 4 times.
It supports fast charging.
I can only recommend it.
Fast Charging
Large capacity
Compact
More ports
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Jan, Praha 7
Rated 30/09/2026, variant AlzaPower Onyx Gen2 20000mAh Power Delivery (22.5W) white
Verified purchase - review from a price comparison website
Fast charging (phone)
Fast power bank charging (under 3 hours)
Small capacity
It charged a battery with a capacity of 4500mAh three times, so instead of the declared 20000 capacity, it's more like 14000.
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Aki Wendel, praha
Rated 27/09/2026, variant AlzaPower Onyx Gen2 20000mAh Power Delivery (22.5W) black
Verified purchase
Super. Isn't overpriced.
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Vladimír, Tišice
Rated 20/09/2026, variant AlzaPower Onyx Gen2 20000mAh Power Delivery (22.5W) black
Verified purchase
Does what it's supposed to, with the capacity it states.
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