Charger guide · AC
7kW Home EV Charger Guide
A 7 kW wallbox is a common choice for home charging. It suits overnight top-ups and can replenish many electric cars while they are parked at home.
How a 7 kW home charger works
A home wallbox supplies alternating current (AC), which the vehicle converts to battery energy using its onboard charger. The actual power is the lower of the wallbox output and the car's onboard AC limit. A 7 kW unit typically uses a Type 2 connection in the UK.
Benefits of home charging
- Convenient charging while the vehicle is parked overnight.
- Can reduce reliance on public rapid charging for routine journeys.
- Some tariffs offer lower electricity prices at selected off-peak times.
- Simple AC charging can be a practical fit for everyday driving.
Example charging times
Illustration for a 60 kWh usable battery, charging from 10% to 80% (42 kWh added). Actual cars have different battery sizes and onboard limits.
| Battery added | Ideal time at 7 kW | Approximate miles at 4 mi/kWh |
|---|---|---|
| 10% to 80% · 42 kWh | 6 hours | 168 miles |
| 20% to 80% · 36 kWh | 5.1 hours | 144 miles |
7kW home charger FAQs
It can supply up to 7 kW AC, or roughly 7 kWh per hour before losses, when the car can accept that power.
On a 60 kWh usable battery, 10–80% adds 42 kWh, or around six hours at a steady 7 kW before losses.
Type 2 is common for UK home AC charging. Check the connector and charging capability of your exact vehicle.
More charging guides
Compare a 22 kW AC charger, learn about 50 kW rapid charging, or open the charging cost calculator.