Reviews AlzaPower Garnet 20000mAh Power Delivery (22,5W) white
Interested in reviews of AlzaPower Garnet 20000mAh Power Delivery (22,5W) white? It got 4.7 out of 5 stars from our customers. Find specific customer reviews of AlzaPower Garnet 20000mAh Power Delivery (22,5W) white below. We will appreciate if you also share your experiences with AlzaPower Garnet 20000mAh Power Delivery (22,5W) white after purchasing.
User Reviews
Roman, Přelouč
Rated 13/05/2024, variant AlzaPower Garnet 20000mAh Power Delivery (22,5W) white
Verified purchase
Fully sufficient capacity
Nothing yet.
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Martina, Olomouc
Rated 04/11/2026, variant AlzaPower Garnet 10000mAh Power Delivery (22,5W) white
Verified purchase
top-notch during the warranty period
Just after the warranty claim period and after the warranty expired, it stopped working again.
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Petr, Kadaň
Rated 02/10/2026, variant AlzaPower Garnet 10000mAh Power Delivery (22,5W) black
Verified purchase
Ideal for travel
Fast charging
Charge indicator in %
Total lightweight
It isn't quite the thinnest on the market
Plastic body (but the surface is grooved, so scratches shouldn't be visible)
It doesn't have a low-power mode for charging small electronics.
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Jan, Jamné nad Orlicí
Rated 01/10/2026, variant AlzaPower Garnet 20000mAh Power Delivery (22,5W) black
Verified purchase
broken
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Lukáš, Klínec
Rated 29/09/2026, variant AlzaPower Garnet 20000mAh Power Delivery (22,5W) black
Verified purchase - review from a price comparison website
Large capacity
Easy to operate (when connecting the device, when switching it on)
Multiple outputs (two devices)
Quality workmanship
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Martin, Praha 4 - Kamýk
Rated 12/09/2026, variant AlzaPower Garnet 20000mAh Power Delivery (22,5W) black
Verified purchase
I returned it. When connecting a bike light (I admit, the China solarstorm x2 with USB-A is a bit problematic…), it goes out after 2s even on the lowest intensity. A different model can handle it.
Display with %
Can't handle a higher power draw.
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Vojtěch, Nové Strašecí
Rated 08/09/2026, variant AlzaPower Garnet 10000mAh Power Delivery (22,5W) black
Verified purchase
Price
Efficiency
The percentage indicator is more of a rough guide.
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Anonymous customer
Rated 06/09/2026, variant AlzaPower Garnet 10000mAh Power Delivery (22,5W) black
Verified purchase
After roughly 8 months and a few charges (about 5x), the battery in the power bank swelled up and I had to claim a warranty replacement.
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Anonymous customer
Rated 28/08/2026, variant AlzaPower Garnet 10000mAh Power Delivery (22,5W) black
Verified purchase
Charges
Dimensions and weight
After a year and a half, the charge indicator is completely useless. I charge it from zero and the percentage jumps up, then suddenly stops at 80 and nothing happens. After a while, it jumps to 100%. The same thing happens in reverse. I'll charge my phone once and the power bank shows it has 60% left, I connect my phone a second time and it charges for 5 minutes and then it's suddenly dead. It's completely unusable.
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Jan, Velemín
Rated 26/08/2026, variant AlzaPower Garnet 20000mAh Power Delivery (22,5W) black
Verified purchase
It's heavy, big and doesn't do much. It's usable, but you can't rely on it.
Combination of 2 USB-C and USB-A
the charge level indicator is deceptive
From 30% display indication, you're counting down the seconds until it switches off and shows 00%.
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