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Swissten Voltbox 35W 20000 mAh with integrated USB-C and Lightning cables black - Power Bank

Reviews Swissten Voltbox 35W 20000 mAh with integrated USB-C and Lightning cables black

Interested in reviews of Swissten Voltbox 35W 20000 mAh with integrated USB-C and Lightning cables black? It got 4.8 out of 5 stars from our customers. Find specific customer reviews of Swissten Voltbox 35W 20000 mAh with integrated USB-C and Lightning cables black below. We will appreciate if you also share your experiences with Swissten Voltbox 35W 20000 mAh with integrated USB-C and Lightning cables black after purchasing.
46.90 €
In stock 3 pcs
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User Reviews

Anonymous customerflag
Rated 15/08/2025, variant Swissten Voltbox 35W 20000 mAh with integrated USB-C and Lightning cables black
Verified purchase
Significantly lighter than e.g. the competing "AlzaPower Style 65W 20.000mAh", 70g lighter (when we add a short usb-c cable to the Alza), and when discharging it came out 64Wh (at 5V 3A output, strange) - measured with FNB58. The aforementioned AlzaPower output of the also stated nominal 74Wh managed "only" 60Wh (12v 1.5a output). Too bad the lightning cable isn't a second usb-c. For the money, it seems to be a good combination of weight and capacity, just fast charging with a lot of devices will probably not get (when they do not support PD3.0 but other protocols).
64Wh output capacity
only 309g incl. integrated cables
integrated cables
only supports PD3.0 up to 35w, not other protocols
who wants lightning today
it refused to charge from the xiaomi adapter to the socket, it just won't communicate with anything
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Anonymous customerflag
Rated 09/05/2025, variant Swissten Voltbox 35W 20000 mAh with integrated USB-C and Lightning cables black
Verified purchase
I was pleasantly surprised by the Swissten Voltbox 35W power bank - finally a device that really charges fast and also charges others fast. Thanks to the integrated cables, I don't have to pull any extra cables, everything is at my fingertips. The 20,000 mAh capacity is enough for several days of use and charging multiple devices at once. The Lightning connector is ideal for the iPhone, while I use USB-C for my laptop and headphones. Surprisingly compact dimensions and quality design make it a partner for travel and work. No lengthy charging or searching for a cable - just a reliable and thoughtful powerbank.
Fast 35W charging
Integrated cables
Large capacity
Compact size
Quality workmanship
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Petr, Jablonec nad Nisou 1flag
Rated 11/04/2025, variant Swissten Voltbox 35W 20000 mAh with integrated USB-C and Lightning cables black
Verified purchase - review from a price comparison website
I didn't even expect it to have 20,000 mAh at that weight. Ignoring that, it's small, light, and thanks to the built-in cables (USB-C, Apple), practical. It outputs 4.75V, like most power banks.
weight only 304 grams
the 33W Xiaomi charger charges 22W, so pretty fast
phone charges at 25 W
can charge the appliance even when it is charging itself (Pass Through Charging)
the display shows the percentage of charge
It's not 20,000 mAh! On USB, it delivers only 10.4 Ah / 49.6 Wh (at 6% balance); so the battery capacity will be something like 14 Ah.
With the 67W Xiaomi charger, it won't agree and won't start charging at all.
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