Interested in reviews of AlzaPower Onyx Gen2 20000mAh Power Delivery (22.5W) black? It got 4.7 out of 5 stars from our customers. Find specific customer reviews of AlzaPower Onyx Gen2 20000mAh Power Delivery (22.5W) black below. We will appreciate if you also share your experiences with AlzaPower Onyx Gen2 20000mAh Power Delivery (22.5W) black after purchasing.
AlzaPower Onyx Gen2 20000mAh Power Delivery (22.5W) black
Rated 20/06/2026, variant AlzaPower Onyx Gen2 20000mAh Power Delivery (22.5W) black
Verified purchase
I bought this to use with the Meta Quest 3, where the battery life had rapidly deteriorated after two years, even in the strap I’d bought separately for it. So the solution is to buy a new strap for around 3,000 CZK or a battery for around 700 CZK, but according to the instructions, you have to take the Quest apart completely, which isn’t a good idea. The problem was solved by this power bank, which extended my usage time by about 4 hours. I’ve only had it for a short while, so I’ll have to put it through its paces. The PB not only manages to hold its charge whilst gaming, but also recharges it – and has been doing so very well so far.
capacity
weight
charging via usb-c
It charges more slowly
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Anonymous customer
Rated 18/06/2026, variant AlzaPower Onyx Gen2 20000mAh Power Delivery (22.5W) black
Verified purchase
small, compact
large capacity
I’m deducting two stars for the instructions. Caption:
1 LED indicator light
2 USB-C1 inputs/outputs
3 USB-A ports
4 USB-C2 inputs/outputs
5 Control button
and then it says: "Charging the power bank – Plug one end of the charging cable into the power bank’s USB-A port and the other end into the USB
the port on your laptop or network adapter. "
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Andrea, Praha 9
Rated 16/06/2026, variant AlzaPower Onyx Gen2 20000mAh Power Delivery (22.5W) black
Verified purchase
see the pros and cons
compact size
fulfils its purpose
It would be nice to have at least a fabric case
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Customer, Bežovce
Rated 30/05/2026, variant AlzaPower Onyx Gen2 20000mAh Power Delivery (22.5W) black
Verified purchase - review from a price comparison website
great endurance
sometimes a little hum (sound like graining)
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Jaroslav, Červený Kostelec
Rated 07/05/2026, variant AlzaPower Onyx Gen2 20000mAh Power Delivery (22.5W) black
Verified purchase - review from a price comparison website
Capacity sufficient, fast charging of the phone.
I recommend it.
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Šárka, Karlovy Vary
Rated 07/05/2026, variant AlzaPower Onyx Gen2 20000mAh Power Delivery (22.5W) black
Verified purchase - review from a price comparison website
Not tested yet.
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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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Robert, 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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Petr, Březová
Rated 31/01/2026, variant AlzaPower Onyx Gen2 20000mAh Power Delivery (22.5W) black
Verified purchase - review from a price comparison website
Excellent, it works.
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František, Praha 8
Rated 29/01/2026, variant AlzaPower Onyx Gen2 20000mAh Power Delivery (22.5W) black
Verified purchase - review from a price comparison website
Performance price ratio very favorable ,
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