Smart #3 Wallbox: Überblick nach Ausführung
The Smart #3 charges at home through a Type 2 port, but the maximum power differs per version. The standard version takes 7.4 kW alternating current on a single phase. The versions with the 62 kWh battery take up to 22 kW on a three-phase connection. That difference decides which charger suits you. Wallbox Discounter has a separate page per version, and the overview of Smart EV chargers lists every Smart model we cover.
For the standard Smart #3 we recommend a charger from our 7.4 kW EV chargers. Driving a version with the 62 kWh battery? Then a charger from our 22 kW EV chargers uses the car's full power. An 11 kW EV charger works too, but caps that car at 11 kW.
Versions of the Smart #3
The Smart #3 comes as a standard version and as the sporty Brabus. For your charger choice the charging power is what counts. The standard version charges at 7.4 kW on one phase. The versions with the 62 kWh battery, Pro+, Premium and Brabus, charge at 22 kW on three phases. Check the specific advice per version.
| Version | Battery (usable) | Max. AC charging power | Charging information |
|---|---|---|---|
| Smart #3 (standard) | 47 kWh | 7.4 kW (single-phase) | This page |
| Smart #3 Brabus | 62 kWh | 22 kW (three-phase) | Smart #3 Brabus |
Which EV charger suits the Smart #3?
The standard version has a single-phase on-board charger of 7.4 kW, and that is the ceiling. A single-phase charger of 7.4 kW therefore gives you the full speed. Watch out with a three-phase 11 kW charger. It delivers 3 x 16 A, and a single-phase car only takes one of those phases. The standard Smart #3 then charges at 3.7 kW, so roughly twice as slowly. A heavier charger is not neutral here. It costs you speed.
A three-phase 22 kW charger is the exception. That one delivers 3 x 32 A, so the standard Smart #3 still gets its full 7.4 kW. Driving a version with the 62 kWh battery? Then that same charger uses all 22 kW the car can take.
Do you have a tight fuse box with a heat pump or an induction hob? Then pick a charger with load balancing. Load balancing means the charger keeps measuring how much current is free in your fuse box. It then adjusts the power itself, so your main fuse never trips. In our range that feature sits with the EV chargers with dynamic load balancing, on the three-phase models.
One honest note about the meter. A built-in MID meter is a calibrated kWh meter. It records exactly what you charge at home, separately from your household use. Our 7.4 kW models do not carry one, because in our range the calibrated meter starts at 11 kW. For the standard Smart #3 a three-phase 22 kW model is therefore the best of both. It keeps the full 7.4 kW and does carry the meter, as you can see under EV chargers with a MID meter.
How long does the Smart #3 take to charge?
The standard version has a usable battery of 47 kWh. On a 7.4 kW charger it goes from empty to full in around 7.5 hours, including charging losses. Plug in during the evening and it is ready in the morning. On a three-phase 11 kW charger the same car drops to 3.7 kW. It then needs roughly fifteen hours, which no longer fits one night. The 62 kWh versions have a bigger battery but charge faster on three phases, in around 3.5 hours at 22 kW, also including losses.
A mobile charger on a wall socket delivers 2.3 to 3.7 kW and is mainly a backup. For daily use at home a fixed charger is the better answer. The Smart #3 has a Type 2 port, the standard on modern chargers, so at home you charge through the charger's fixed cable. To charge elsewhere you need a separate Type 2 charging cable.
Recommended chargers for the Smart #3
Start from your version. The standard Smart #3 is well served by a single-phase 7.4 kW model, which uses everything the car can take. A three-phase 22 kW model does the same and adds the calibrated meter. The 62 kWh versions get the most out of that 22 kW model, where load balancing is available as well.
We always advise having the connection done by a qualified electrician, which is safer and matters for your insurance. Wallbox Discounter arranges installation in the Netherlands, Flemish Belgium and Germany. In the Netherlands and Flemish Belgium you order it together with the charger. In Germany it runs through a free quote. We ship worldwide, but outside those three countries the installation is yours to arrange locally.
Frequently asked questions about the Smart #3
Why does a MID meter matter for the Smart #3?
A MID meter is a calibrated kWh meter that records your home charging precisely. You then know what charging costs you, separately from the rest of your electricity. Our 7.4 kW models do not have one. A three-phase 22 kW charger with a calibrated meter keeps your full 7.4 kW, an 11 kW charger does not.
Does the Smart #3 need a three-phase connection?
That depends on your version. The standard version charges at 7.4 kW on a single phase and gains nothing from three phases. On a three-phase 11 kW charger it even falls back to 3.7 kW. The 62 kWh versions do charge up to 22 kW and need three phases to reach that. Running a lot of appliances at home? Then keep an eye on your spare capacity. On the three-phase models you can also pick a charger with load balancing.