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
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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Customer
Rated 27/11/2025, variant AlzaPower Onyx Gen2 20000mAh Power Delivery (22.5W) white
Verified purchase - review from a price comparison website
Speed
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Miroslav, Třebíč 1
Rated 15/10/2025, variant AlzaPower Onyx Gen2 20000mAh Power Delivery (22.5W) white
Verified purchase
Out of the box, the powerbank looked good, but stopped responding completely on the first charge.
Fortunately, the Alza branch immediately replaced it with another model without any problems and it works perfectly. I appreciate the approach of the dealer who resolved the situation quickly and helpfully. I am writing this review mainly as a warning to others - it seems that there is the occasional defective piece in this series, but if it works, it meets the parameters.
Elegant design, compact dimensions
Good parameters (capacity 20 000 mAh, PD 22.5 W)
When charging for the first time it stopped responding (no LED, did not charge)
Apparently weaker quality control for this series
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Customer, Mělník
Rated 25/09/2025, variant AlzaPower Onyx Gen2 20000mAh Power Delivery (22.5W) white
Verified purchase
Battery life
Design
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Dominik, Brno
Rated 12/09/2025, variant AlzaPower Onyx Gen2 20000mAh Power Delivery (22.5W) white
Verified purchase
It's not that heavy
Nice in appearance
Nothing yet, I just unpacked it (I'll upgrade)
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Matěj, Plzeň
Rated 14/04/2026, variant AlzaPower Onyx Gen2 10000mAh Power Delivery (22.5W) black
Verified purchase - review from a price comparison website
Charges both the loops and the phone, no problems so far.
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Jan, Pelhřimov
Rated 07/04/2026, variant AlzaPower Onyx Gen2 20000mAh Power Delivery (22.5W) black
Verified purchase - review from a price comparison website
Second bad experience with AlzaPower products.
The goods came in an unpacked box. The power bank was not in its protective packaging and the perimeter foil showed signs of tampering.
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Petr, Praha 4 - Hodkovičky
Rated 05/04/2026, variant AlzaPower Onyx Gen2 10000mAh Power Delivery (22.5W) white
Verified purchase
samotná piwerbanka váží jen 186g
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Customer, Příbram
Rated 29/03/2026, variant AlzaPower Onyx Gen2 20000mAh Power Delivery (22.5W) black
Verified purchase
I have several of them and for the price, good
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