Interested in reviews of AlzaPower Onyx 5000mAh White? It got 4.6 out of 5 stars from our customers. Find specific customer reviews of AlzaPower Onyx 5000mAh White below. We will appreciate if you also share your experiences with AlzaPower Onyx 5000mAh White after purchasing.
Rated 25/02/2026, variant AlzaPower Onyx 5000mAh White
Verified purchase
weight
size
when something takes too little electricity, it shuts down and stops giving completely
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Miroslav, Lovosice
Rated 22/01/2026, variant AlzaPower Onyx 5000mAh White
Verified purchase
Small foldable PB
Low weight
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Pavla, Orlová 4
Rated 27/12/2025, variant AlzaPower Onyx 5000mAh White
Verified purchase - review from a price comparison website
It runs great it's small and nice
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Anonymous customer
Rated 05/12/2025, variant AlzaPower Onyx 5000mAh White
Verified purchase
large capacity
price
Package
charging the power bank
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Marek, Most
Rated 17/11/2025, variant AlzaPower Onyx 5000mAh White
Verified purchase
Fast charging
It's lightweight
Durable, I've dropped it a few times, been in damp environments, etc. and it works like new
Recharges relatively quickly
Maybe just the capacity, but I was buying it as a backup powerbank for my pocket
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Blahoslav, Smiřice
Rated 12/11/2025, variant AlzaPower Onyx 5000mAh White
Verified purchase - review from a price comparison website
Small
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Stanislav, Plzen
Rated 25/10/2025, variant AlzaPower Onyx 5000mAh White
Verified purchase
It saves you from having a phone with only 2% battery, but even the iPhone 13, which doesn't have a big battery, won't charge all the way up. The power bank gets quite hot when in use, but it is really compact, so for the price I bought it for in Alza, there is no point in complaining. A great helper when you need to quickly save your phone or IQOS from running out of power - it doesn't charge to 100%, but it got the iPhone 13 up to about 60%.
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Martin, Ostrava - Heřmanice
Rated 23/10/2025, variant AlzaPower Onyx 5000mAh White
Verified purchase
For that price (within Alza days for 138 CZK) you cannot expect anything better. I needed a small powerbank to power the LED strip and it accomplished what I wanted. Perhaps the charging could be a little faster.
Compact size
Slower charging
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Anonymous customer
Rated 20/10/2025, variant AlzaPower Onyx 5000mAh White
Verified purchase
Small, for your purse.
Charges approx. 1 - 2 depending on the level of discharge of the mobile phone
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Jiří, Svitavy
Rated 22/09/2025, variant AlzaPower Onyx 5000mAh White
Verified purchase
Price - I bought it on sale for 142 CZK
Ideal as an emergency power bank for your backpack
Size
Nowadays of course Micro-USB is not optimal, but for the price ok
It's stupid to buy it for more than 200-250 CZK
Only 10 W of power
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