Short answer: For most Sydney homes, a single-phase wall charger of about 7 kW is the sweet spot. It can add a full day’s driving overnight for most people. Before you buy, check: what your car can accept, whether you have single or three-phase power, smart and solar-charging features, load management, cable length and type (tethered or socket), weather rating, and warranty. Then get an electrician to check your switchboard and the cable route before you order.
Choosing a home EV charger is easier than it looks once you know which features actually matter. This guide walks through the decisions in the order you should make them, so you don’t pay for features you can’t use, or buy a charger your home can’t support.
Step 1: Know your three charging options
| Option | Typical power | What it means in practice |
|---|---|---|
| Portable charger in a standard power point | About 2.3 kW (10 A) | Slow. Fine for short daily trips. Have the circuit checked if you use it daily. |
| Single-phase wall charger | Up to about 7 kW (32 A) | The most common home setup. Suits most daily driving. |
| Three-phase wall charger | Up to about 11 kW or 22 kW | Faster, but needs three-phase power, and your car must support it. |
Speeds are approximate. Real charging speed depends on your car, your supply and the charger settings.
Step 2: Check what your car can accept
Your car has an onboard charger that limits how fast it can take AC power from a wall charger. If your car accepts 7.4 kW, a 22 kW charger won’t charge it any faster. Check the car’s specifications or ask your dealer. Most EVs sold in Australia use a Type 2 connector for AC charging.
Step 3: Single-phase or three-phase?
Look at your switchboard and meter, or ask your electrician. Most Inner West houses are single-phase, and a single-phase 7 kW charger suits most people.
If you’re thinking of upgrading to three-phase just for faster charging, think carefully. Changing your supply is work on the network connection, done in NSW by an Accredited Service Provider (ASP) Level 2, with Ausgrid involved. It adds real cost. Blue Link isn’t Level 2 accredited, so we’ll tell you if your plans need it.
Step 4: Features worth paying for
Smart scheduling
Lets you charge during cheaper off-peak periods, if your electricity plan has them. Most smart chargers do this through an app.
Solar charging
If you have solar, or plan to, a charger that can charge from excess solar can make a big difference to running costs. It usually needs an energy meter or CT clamp, and sometimes a compatible inverter.
Load management
This is the most underrated feature. A load-managed charger watches your home’s total use and slows charging when the oven, air conditioner and hot water are all running. It can avoid tripping your main switch, and sometimes avoids the need for a supply upgrade.
Built-in DC fault protection
EV charging circuits need the right type of residual current protection. Some chargers have built-in DC leakage detection, which can make the switchboard side simpler. Your electrician will follow the charger maker’s installation instructions and the Wiring Rules.
Step 5: Practical details
- Tethered or socket? A tethered charger has the cable attached, which is convenient. A socket (untethered) charger looks neater and lets you use your own cable.
- Cable length: measure from the planned charger spot to your car’s charge port, allowing for how you park. 5 metres is a common tethered length, but check.
- Weather rating: outdoor chargers need a suitable IP rating. Carports and open driveways get rain and sun.
- Mounting spot: close to the switchboard is cheaper to install. Out of the way of car doors and foot traffic is safer.
- Wi-Fi or mobile signal: smart features need a connection at the charger location.
- Warranty and support: check the warranty length and whether there’s local support.
- Security: a lockable or PIN-protected charger is worth considering if it’s accessible from the street, which is common with rear-lane parking.
Step 6: Apartments and strata
If you live in an apartment, talk to your strata manager first. The charger may need to connect to your own unit’s supply, a common-property circuit or a shared building system, and you’ll usually need owners corporation approval. The building’s electrical capacity matters too.
Step 7: Get the install checked before you buy
Send your electrician a photo of your switchboard (cover open), where you park, and the charger you’re considering. They can tell you whether your board has space, whether it needs an upgrade, and roughly how long the cable run is. See our EV charger installation cost guide for what affects the price, and our switchboard signs guide if your board is old.
The NSW Government’s Home Energy Saver loans offer eligible households zero-interest loans of up to $15,000 for upgrades including EV chargers. Check eligibility on the official page.
Choosing a charger? We’ll check your board and recommend a charger that suits your car and your home. We install across the Inner West, including Marrickville, Petersham, Croydon Park and Ashfield. See our EV charger installation page, or call 0421 772 661.
Frequently asked questions
What size EV charger do I need at home?
For most people, a single-phase charger of about 7 kW is plenty. It can typically recharge a day’s driving overnight. Check your car’s maximum AC charging rate before buying anything bigger.
Is a smart EV charger worth it?
If you have solar or a time-of-use electricity plan, usually yes. Smart scheduling and solar charging can noticeably reduce running costs, and load management can prevent tripping.
Can I install an EV charger myself?
No. A wall charger needs a dedicated circuit and must be installed by a licensed electrician, who tests it and lodges a Certificate of Compliance for Electrical Work.
Will any charger work with my car?
Most EVs in Australia use a Type 2 connector for AC charging, so most wall chargers are compatible. Check your car’s specifications to be sure.