There is no single size, because “EV charger” covers four different kinds of equipment. A portable charger is a small carry-along unit on a long cable. A home wallbox is a compact box fixed flat to a wall. Public AC stations stand at about parking-meter height, and DC fast chargers are cabinet-sized installations. For home buyers, the dimension that matters most is rarely the box — it is the cable length and the space around where the car parks.
Key Takeaways
- Charger size runs from a hand-carried portable unit to a cabinet-sized DC fast charger.
- For home charging, cable length (typically 25 ft) and parking space matter more than the box.
- Plan wall space for the unit, coil space for the cable, and standing room to plug in.
- “Size” also means electrical load — check your panel capacity as a separate question.
The Four Classes, Side by Side
| Class | Physical form | Where it lives | The size that matters |
|---|---|---|---|
| Portable charger | A small control unit on a cable; carried in one hand and stored in the boot | Any suitable outlet, at home or away | Cable length — 25 ft on the EV-AC04001U, 25 or 28 ft on the EV-ACS4005T |
| Home wallbox | A compact box mounted flat on a wall or post | Garage wall or driveway post | Wall space for the unit plus room to coil and hang its cable |
| Public AC station | A pedestal or wall unit serving one or two cars | Car parks, workplaces, hotels | One parking bay per connector, plus access space in front |
| DC fast charger | A floor-standing cabinet, often with separate power equipment | Highway and retail charging sites | A marked bay and a equipment footprint planned by the site designer |
Size grows loosely with power class. The U.S. DOT puts Level 1 at about 1 kW, Level 2 at 7–19 kW and DC fast charging at 50–350 kW. The home classes stay small because AC charging electronics live in the car; a DC fast charger carries its conversion hardware on site, which is why it needs a cabinet.
The Space Checks That Actually Decide Fit
- Cable reach. Measure from the mounting point to the car’s charge port in its parked position, allowing slack. A 25 ft cable covers most garages and driveways; a longer run is a mounting-position problem before it is a product problem.
- Wall and swing space. The unit itself is compact, but you also need room to stand, plug in, and open the car door beside it.
- Cable storage. A coiled cable and connector need a hook or holster space at a comfortable height — not floor space in a walkway, where the cable becomes a trip hazard and gets driven over.
- Clearance that stays clear. Keep the area in front of the unit free of bins and storage, so the cable is never stretched tight across a gap.
The Other Meaning of “Size”
Many “how big” questions are really about electrical size: how many amps your panel can spare. That is a different measurement entirely, covered in what size EV charger you can have at home and in our guide to what size breaker an EV charger needs. A physically small charger can still be a large electrical load, so check both meanings before you buy.
Chargers Mentioned
The EVDANCE EV-ACS4005T 40A NACS portable charger is the carry-along class, with a 25 or 28 ft cable and IP66 sealing. The EVDANCE EV-ACT5006T 48A Level 2 wall charger is the fixed wallbox class, hard-wired or on a NEMA 14-50 plug, with a 25 ft cable. The EVDANCE EV-RHDC30K-L is the compact end of the DC cabinet class, at 22 kW.
Frequently Asked Questions
Will a home wallbox take much garage wall space?
No. Wallboxes are compact units designed to mount flat, and the cable hangs beside them. The real space claim is the parking position in front of the unit, not the wall.
Is a bigger charger always more powerful?
Not in the home classes. Portable and wallbox units are similar in capability; the visible size jump comes with DC fast charging, where the conversion hardware moves off the car and into a cabinet.
What cable length should I plan for?
Measure your parked car first. Most home products sit around 25 ft, which suits a charger mounted near the car’s parking spot. If the port lands far from any wall, reposition the mount rather than stretching a shorter cable.
Related Reading
- What Size EV Charger Can I Have at Home? Panel Capacity Explained
- What Size Breaker Do I Need for an EV Charger?
- What Size Wire Do You Need for an EV Charger?
- How Long Do Home EV Chargers Last?
