A dedicated home charger is faster, safer and more convenient than charging from a standard socket. Before buying one, though, it is worth understanding what your electrical system can support, because a typical wallbox draws a large continuous load for hours at a time.
What to check first
- Supply and panel capacity – a load calculation shows whether your service and panel can take the charger alongside AC, cooking and water heating, or whether a panel upgrade or load-management device is needed.
- Charger rating – match the charger to your vehicle's onboard charger and daily mileage; a bigger unit than the car can accept adds cost without faster charging.
- Cable route and location – keep the cable run short and protected, and mount the unit where the lead reaches the charging port without trailing.
- Protection – the circuit needs correctly sized cable, a dedicated breaker and suitable earth-fault protection as required by your local wiring rules.
Smart chargers can schedule charging for off-peak tariffs or use surplus solar generation, which can noticeably lower running costs. Always have the installation carried out and certified by a licensed electrician so it is safe, compliant and covered by the charger's warranty.
