Best EV Home Charger NZ: Which One to Buy
Every EV comes with a basic Level 1 charging cable, but most owners end up wanting something faster. Here's what Level 2 home charging actually costs to install in NZ, and which smart features are worth it.
Level 1 vs Level 2: the speed difference is bigger than people expect
The cable that comes with most EVs plugs into a standard household socket and delivers around 2.4kW, adding roughly 10-15km of range per hour of charging. That's fine if you're doing short daily commutes and can charge overnight, but it's genuinely slow for topping up a mostly-empty battery. A dedicated Level 2 home charger, wired into a proper circuit, typically delivers 7-22kW depending on your home's wiring and the charger itself, cutting a full charge down from potentially days to a few hours.
If your daily driving is under 50km and you charge every night, you may not need Level 2 charging at all — the standard cable might genuinely be enough. It's worth tracking your actual usage for a couple of weeks before spending on a dedicated charger.
Installation costs are the part people underestimate
The charger unit itself is usually the smaller part of the bill. A registered electrician needs to run a new circuit from your switchboard, which can be straightforward or expensive depending on your switchboard's capacity, the distance to your garage or car park, and whether your board needs upgrading to handle the extra load. Get a quote from an electrician before you buy the charger — the installation cost varies a lot more between houses than the charger cost varies between brands.
Smart charger features that genuinely save money
Look for chargers with app-based scheduling that lets you charge only during off-peak hours on plans like those offering cheaper overnight rates — this is where the real savings are, not from the charger being "smart" in a general sense. Some chargers also support solar-matching, only drawing power when your panels are producing a surplus, which is useful if you already have solar installed. Basic non-smart chargers are cheaper up front but leave that scheduling to a wall timer or your own habits.
What to check before buying
- Cable length — measure the distance from where the charger will be mounted to where your car parks; tethered cables that are too short are a common regret.
- Amperage and your switchboard capacity — an electrician can confirm what your home can support without an upgrade.
- Outdoor rating — if it's not going in a garage, make sure the unit is rated for outdoor installation.
- App reliability — scheduling features are only useful if the app consistently connects; check recent reviews rather than the app store rating alone.
- Warranty and local support — NZ-specific warranty and service backing matters more than it does for smaller gadgets, given the installation cost involved.