Reviews AlzaPower Onyx Gen2 20000mAh Power Delivery (22.5W) white
Interested in reviews of AlzaPower Onyx Gen2 20000mAh Power Delivery (22.5W) white? It got 4.7 out of 5 stars from our customers. Find specific customer reviews of AlzaPower Onyx Gen2 20000mAh Power Delivery (22.5W) white below. We will appreciate if you also share your experiences with AlzaPower Onyx Gen2 20000mAh Power Delivery (22.5W) white after purchasing.
AlzaPower Onyx Gen2 20000mAh Power Delivery (22.5W) white
In stock > 10 pcs
24.99 €
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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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Sofie, Chýně
Rated 10/08/2026, variant AlzaPower Onyx Gen2 20000mAh Power Delivery (22.5W) white
Verified purchase
Quite compact in size for its capacity, but otherwise it wasn't a good buy. It takes an eternity to charge my phone, didn't even register my tablet, and takes even longer to charge itself.
Charges poorly
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Natálie, Rokycany 1
Rated 16/07/2026, variant AlzaPower Onyx Gen2 20000mAh Power Delivery (22.5W) white
Verified purchase - review from a price comparison website
Great for travelling
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Žaneta, Hostim
Rated 18/06/2026, variant AlzaPower Onyx Gen2 20000mAh Power Delivery (22.5W) white
Verified purchase - review from a price comparison website
Super quality for the price
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Customer, Mělník 1
Rated 07/06/2026, variant AlzaPower Onyx Gen2 20000mAh Power Delivery (22.5W) white
Verified purchase
Endurance, capacity
Design
Fast Charging
Price
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Anonymous customer
Rated 16/05/2026, variant AlzaPower Onyx Gen2 20000mAh Power Delivery (22.5W) white
Verified purchase
It takes more than 7h to charge to full 100% when all LEDs are lit. Bought for 349Kč. (449Kč -100Kč coupon. )
cheap
takes a long time to charge
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Roman, Modřice
Rated 21/04/2026, variant AlzaPower Onyx Gen2 20000mAh Power Delivery (22.5W) white
Verified purchase
I haven't come across any Alzapower stuff that's wrong
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Company
Rated 13/12/2025, variant AlzaPower Onyx Gen2 20000mAh Power Delivery (22.5W) white
Verified purchase
Purchased for Meta Quest VRK. As long as it is charging, the Meta Quest does not discharge (or drop in charge level) while in use. After 4-5 hours in the meta quest, the power bank is half-discharged and takes quite a long time to charge itself (which is understandable with a 20K mAh capacity).
Capacity
Charges fast, so that VRko doesn't have time to discharge
Price
Long charging
Weight
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Richard, Pardubice
Rated 28/11/2025, variant AlzaPower Onyx Gen2 20000mAh Power Delivery (22.5W) white
Verified purchase - review from a price comparison website
Satisfied, I recommend
A great travel companion
long life
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