The car, the cable and the supply each cap the charge speed · review

VoltBox Mobile 11 kW, 6–16 A in five steps, 7 m cable, IP65 review

A portable 11 kW charger with current selectable at 6, 8, 10, 13 or 16 A, a delayed charging function, a 7 metre TPU cable and an IP65 rating.

By Jean-Benoit Buisson

The bottom line A portable charger with proper discrete current settings and a published cable temperature range, capable of shifting a charge into the night. Its headline saving is a percentage with no tariff behind it, and it says nothing about protection.

A portable 11 kW charger with a timer and five current steps.

The steps

6, 8, 10, 13 and 16 A. Discrete values that line up with common fuse ratings, which makes matching the charger to a socket a choice rather than a guess. The next charger on this shelf offers four steps; two others offer none.

The timer

Delayed charging, so the car fills during a cheaper tariff period. That is the genuine saving mechanism, and it works whether or not the quoted percentage does.

The cable

7 metres of TPU, IP65, specified from −30 °C to 50 °C. Publishing both ends of the range on a cable that lives on a driveway through a winter is worth more than it sounds.

The percentage to set aside

50 % of electricity costs. No tariff, no consumption, no baseline. It is a projection and it is not in the lines above.

And the silence, again

Nothing about residual current protection or what the socket must satisfy.

Availability

German, French, Italian and Spanish Amazon stores quoted 153 € to 237 € when this page was compiled.

British Amazon catalogue carries an entry for it, with nobody selling.

American Amazon store returned nothing at all, so the buy button there runs a search instead of landing on an empty page.

These figures are what Keepa reported on the day this page was last updated. Availability and pricing move without notice.

Prices quoted in this text were read on 16 September 2026. The live price is at the top of the page.

What it gets right, and what it leaves out

Strengths

Five discrete current settings rather than a vague adjustment
An operating temperature range for the cable is published at both ends
A delayed charging function for shifting to a cheaper tariff period

Compromises

The second bullet claims a 50 % saving on electricity costs with no tariff behind it
No protection requirement stated
No metering, so the tariff saving cannot be verified by the device

Specifications

Charging power	Up to 11 kW, stated as 400 V × 16 A, first bullet
Phases	Three-phase through a CEE 16 A plug, first bullet
Cable or socket	7 m Type 2 cable with a CEE adapter supplied — portable rather than fixed
Load management	Current selectable at 6, 8, 10, 13 or 16 A, first bullet; a delayed charging function is described in the second
Solar surplus charging	None
Metering	Nowhere in the listing
Stated protection requirements	Absent as a requirement; the cable is IP65 rated and specified from −30 °C to 50 °C, fourth bullet
Amazon reference	B0FP5J9YZZ (same reference on 5 Amazon marketplaces)
EAN	6979047250102

Questions owners ask about this one

Why five current steps rather than a dial?

Because the setting has to match the socket and the circuit behind it. Discrete steps — 6, 8, 10, 13, 16 A — line up with common fuse ratings, which makes choosing correctly easier than a continuous adjustment would.

Can it really save 50 %?

That depends entirely on a tariff the listing does not name. Delayed charging shifts consumption to a cheaper period where one exists; the percentage is a projection and this page does not carry it into the specification lines.