All about home EV chargers

So you’re looking at getting an EV or have decided to get one. Here’s what you need to know about installing an EV charger at home.

We install wall charging units, RCD protection, the isolator switch and the cabling needed for your home EV charger. 

Types of EV chargers

Level 1 charger

This uses a standard 230-volt household outlet which, is often included with your EV. While they’re the slowest option, they are useful for overnight charging or topping up during the day.

Level 2 charger

The recommended and most efficient choice for home installations, Level 2 chargers operate at either 230 or 400 volts and provide faster charging. Depending on the charger’s power output and your EV’s battery size, this charger can fully charge an EV in a few hours. 

DC fast chargers

Provide the quickest charging speeds but due to their high-power requirements are usually used at public charging stations, where you can charge your battery or top up in under an hour. 

Installation need to know

  • For the recommended Level 2 charger you need an electrician to check if your home electricals can handle the increased load. An electrician can upgrade your switchboard to increase capacity for this.
  • Choose a site that is easily accessible, close to where you park your EV vehicle, sheltered if possible and clear of potential obstructions.
  • Your charger needs to be compatible with your EV’s charging port. Most EV manufacturers provide a list of recommended chargers.
  • Installation cost, which is in addition to the cost of the charger, will vary depending on the type of charger you choose and how close you can site it to your power source.

Our top EV charger tips

Efficient charging

The most cost-effective time to charge your EV is between 11pm and 6am in the morning when power costs are lower. Avoid charging your car when you get home from work at peak time. Set a timer to charge in the small hours. 

To lengthen the life of your battery the recommendation is to keep it in the charge range between 30% and 80%, rather than fully charged. Try to avoid running your battery down completely. 

Interest free loans for EV chargers 

Check with your bank if it offers interest free or low interest loans for EV chargers. Recently some banks have offered these loans to help their homeowner customers move toward sustainability. See details at Westpac and ANZ

Selling your home one day?

Real estate agents recommend installing cabling for an EV charger in your garage or carport if you’re planning to sell your home in future because it is an appealing chattel for the property. 

For more about EVs and chargers see our Q&A new link and for the latest news on EVs in Aotearoa check out EVs & Beyond  

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