Updated August 2026 · 8-minute read · by the Gearyx team
Every new EV owner discovers the same thing in week one: the charging cable in the trunk — the "granny charger" — is an emergency device, not a charging solution. At roughly 2.3kW it needs 30+ hours for a full charge on a typical 60–77kWh battery. So the industry reflex is "get a wallbox installed": €800–2,000 including the electrician, bolted to a wall you might not own.
This guide covers the option the wallbox industry doesn't advertise: portable Level 2 charging — the same speed, a fraction of the price, and it moves with you.
The charging math, honestly
| Method | Power | ~Range added per hour | Empty→full (75kWh) | Typical cost |
|---|---|---|---|---|
| Granny cable (household socket) | 2.3kW | ~12 km/h | 30+ hrs | included with car |
| Portable Level 2, 16A | 3.7–11kW | ~20–60 km/h | 7–20 hrs | €129.99 |
| Portable Level 2, 40A | up to 9.6kW | ~50–55 km/h | ~8 hrs | €219.99 |
| Installed wallbox | 7.4–11kW | ~40–60 km/h | 7–10 hrs | €800–2,000 installed |
Read that table twice: a 40A portable unit delivers wallbox speed. The difference is a plug instead of screws.
What you need at home
A suitable outlet. In Europe that's a red CEE 3-phase socket (common in garages, or €150–300 for an electrician to add — far less than a wallbox install) or, for the 16A unit, even a regular reinforced socket. In North America it's the NEMA 14-50 "dryer outlet". If the outlet exists, your installation cost is zero.
The full-speed option: 40A portable
The Gearyx Charge 40A is the wallbox-replacement: up to 9.6kW, adjustable amperage (10–40A, so it adapts to any circuit), app scheduling for cheap night tariffs, and an IP66 weather-sealed housing we've tested in real rain. In our own overnight test it took an ID.4 from 18% to 80% — exactly what a fixed wallbox does.
Specs: 40A / 9.6kW max · adjustable current · Type 2 (EU) or J1772 (US) · app with scheduling + kWh tracking · IP66 · -30°C to +50°C · 7.5m cable · full protection suite (over-current, over-heat, ground fault).
The always-in-the-frunk option: 16A travel unit
The Charge Lite 16A is the insurance policy: it turns any household socket in Europe into a charging point. Holiday rental with no charger? Family visit in a village? This is how EV road trips stop being anxiety exercises. Dual-voltage detection, adjustable current for old wiring, and it packs into its case smaller than a shoebox.
Gearyx Charge Lite 16A — €129.99 →
Complete the setup (the €30 part everyone skips)
Charging cables are heavy, filthy and €200+ to replace. The wall organizer + connector holster keeps the cable coiled and the pins protected; the trunk organizer contains the travel kit; the port kit protects your charge port from weather and adapter theft at public chargers — a real and rising problem.
FAQ
Is portable charging safe overnight? Yes, on a properly rated circuit — the unit's protection suite (thermal, current, ground-fault) is the same technology a wallbox uses. Never use a household extension cord.
Does it work with my EV? Type 2 covers every European EV; Tesla included. US variant uses J1772 with Tesla adapter support.
Will it lower my charging cost? The app's scheduling does: set it to charge only during your night tariff window and it manages itself.
Renter-friendly? That's the whole point — nothing is installed. Moving house means unplugging.
The verdict
If you have (or can add) the right outlet, a 40A portable gives you wallbox life without the wallbox invoice. Add the 16A travel unit to the frunk when road trips are part of your life. Free shipping over €79, 30-day returns, 12-month warranty.