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
Martin, Hlučín
Rated 24/06/2022, variant AlzaPower Onyx 20000mAh Fast Charge + PD3.0 white
Verified purchase
powerbank what to deliver, treads as it should
0 ×Report
Automatic translation
Tomáš, Praha
Rated 09/06/2022, variant AlzaPower Onyx 20000mAh Fast Charge + PD3.0 white
Verified purchase
I measured the delivered capacity (when fast charging from USB C) slightly over 14000 mAh (charging the battery with the same voltage as the power bank).
Good price / capacity and capacity / weight ratio
USB or micro USB
Fast charging can only be done on USB C (description declares that 18w output is on all ports)
He can' t charge himself and other devices at the same time
0 ×Report
Automatic translation
Pavel, Ústí nad Labem
Rated 19/01/2022, variant AlzaPower Onyx 20000mAh Fast Charge + PD3.0 white
Verified purchase
favourable price
relatively small dimensions
Unnecessarily 2× USB-A, still can't charge 2 phones fast at once, but that's not a big deal.
0 ×Report
Automatic translation
David, Jihlava
Rated 15/07/2021, variant AlzaPower Onyx 20000mAh Fast Charge + PD3.0 white
Verified purchase
Capacity
Vice of the show
0 ×Report
Automatic translation
Vít, Český Brod
Rated 04/07/2021, variant AlzaPower Onyx 20000mAh Fast Charge + PD3.0 white
Verified purchase
Amazing capacity.
none
0 ×Report
Automatic translation
Michal, Dlhé Pole
Rated 05/02/2021, variant AlzaPower Onyx 20000mAh Fast Charge + PD3.0 white
Verified purchase
Capacity cool
As soon as I unpacked it one port didn't work
0 ×Report
Automatic translation
Tomáš, LUKOVEČEK
Rated 29/09/2026, variant AlzaPower Onyx 20000mAh Fast Charge + PD3.0 black
Verified purchase
So far, it's working as expected. Great for hikes and trips. We'll see how long it lasts.
Nothing yet.
0 ×Report
Automatic translation
Daniel, Litoměřice
Rated 12/09/2026, variant AlzaPower Onyx 20000mAh Fast Charge + PD3.0 black
Verified purchase
good endurance
the battery bloated after 2.5 years
0 ×Report
Automatic translation
Petra, Říčany
Rated 07/09/2026, variant AlzaPower Onyx 20000mAh Fast Charge + PD3.0 black
Verified purchase
Excellent, I've had it for years.
0 ×Report
Automatic translation
Ivo, Vonoklasy
Rated 04/04/2026, variant AlzaPower Onyx 20000mAh Fast Charge + PD3.0 black
Verified purchase
The battery in the powerbank has ballooned after a few years of moderate use. It's probably fine if a cheap battery loses capacity after a while, but a blowout indicates poor quality control and a manufacturing defect that can cause a dangerous fire.
After a couple of years, it ballooned
0 ×Report
Automatic translation
