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AlzaPower Onyx 20000mAh Fast Charge + PD3.0 white - Power Bank

Reviews AlzaPower Onyx 20000mAh Fast Charge + PD3.0 white

Interested in reviews of AlzaPower Onyx 20000mAh Fast Charge + PD3.0 white? It got 4.8 out of 5 stars from our customers. Find specific customer reviews of AlzaPower Onyx 20000mAh Fast Charge + PD3.0 white below. We will appreciate if you also share your experiences with AlzaPower Onyx 20000mAh Fast Charge + PD3.0 white after purchasing.

User Reviews

Petr, Zlín 1flag
Rated 16/11/2025, variant AlzaPower Onyx 20000mAh Fast Charge + PD3.0 black
Verified purchase
cheap
I complained after 3.5 months, it stopped charging. Settled within 30min by refund, so probably a system problem somewhere
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Anonymous customerflag
Rated 05/11/2025, variant AlzaPower Onyx 20000mAh Fast Charge + PD3.0 black
Verified purchase
Satisfaction
battery capacity
heavier weight
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Milan, Olomoucflag
Rated 02/11/2025, variant AlzaPower Onyx 20000mAh Fast Charge + PD3.0 black
Verified purchase
everything ok
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Jan, mníšek pod brdyflag
Rated 16/10/2025, variant AlzaPower Onyx 20000mAh Fast Charge + PD3.0 black
Verified purchase
light
durable
lovely design
fast charging
fits exactly in your pocket
Nothing
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Jan, Věstoňoviceflag
Rated 06/10/2025, variant AlzaPower Onyx 20000mAh Fast Charge + PD3.0 black
Verified purchase
cheapest 20 ah
almost the lightest 20 ah
really tiny
only 315 g (not 325 as they say, 10 g has cable. )
nice workmanship
at least the 18 watts
eco packaging
quality product description
efficiency rather only 80-85%
only 18w
few charging protocols
Lipo
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Jakub, Praha 6flag
Rated 03/10/2025, variant AlzaPower Onyx 20000mAh Fast Charge + PD3.0 black
Verified purchase
battery life
charging speed
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Markéta, Prahaflag
Rated 05/09/2025, variant AlzaPower Onyx 20000mAh Fast Charge + PD3.0 black
Verified purchase - review from a price comparison website
A little heavier, but fully meets the purpose, recharges without problems, lasts a long time - probably depends on the device being recharged.
lasts a long time
recharges well
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Customer, Říčany u Prahyflag
Rated 29/08/2025, variant AlzaPower Onyx 20000mAh Fast Charge + PD3.0 black
Verified purchase - review from a price comparison website
1111
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Lukáš, Brnoflag
Rated 26/08/2025, variant AlzaPower Onyx 20000mAh Fast Charge + PD3.0 black
Verified purchase
first experience blooming
the connecting cord cannot be hidden anywhere
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Anežka, Praha 9flag
Rated 25/08/2025, variant AlzaPower Onyx 20000mAh Fast Charge + PD3.0 black
Verified purchase
charging indicator
colour
it is fit for purpose
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