The features that genuinely matter on a home EV charger are the ones that match your electricity supply, your car and your solar system: the right power level, a solar charging mode that works with your setup, load management if your supply is tight, and a build that suits where it will be mounted. Touchscreens, card readers and headline charging speeds your car cannot use matter far less. This guide walks through each feature so you can compare chargers on what they will actually do for you.

Start with your driving, not the spec sheet

Most households need far less charging each day than they expect. An electric car typically uses around 15-20 kWh per 100 km, so a 40 km daily round trip needs roughly 6-8 kWh. Almost any dedicated charger replaces that overnight. The table below shows typical charging rates as a rule of thumb; your car's efficiency and onboard charger will change the real numbers.

If your car sits in the garage for ten hours most nights, even a 7 kW charger has plenty of headroom. The bigger question is usually how much of that charging you can shift into solar hours or cheaper tariff windows.

Tethered or socketed?

A tethered charger has its cable permanently attached; a socketed (untethered) unit has an outlet and you plug in your own cable. Neither is better in every situation.

• Tethered suits a household car parked in the same spot each night. It is quicker to use every day and there is no cable to forget, but check the cable reaches your charge port however you park.
• Socketed looks tidier on a front wall, suits households with more than one car or that expect to change vehicles, and lets you replace a damaged cable without replacing the whole unit.

Current electric cars in Australia commonly use a Type 2 connector for AC charging, so either style will generally work. Confirm the cable rating matches the charger's power.

Solar charging mode: the feature worth scrutinising

If you have rooftop solar, the solar mode can matter more than any other feature, because charging from your own surplus instead of exporting it for a few cents per kWh is where the savings come from. Solar-matching chargers use a current transformer (CT) clamp or a meter at your main switchboard to see how much power you are exporting, then adjust the charge rate to follow it. Questions to ask:

• Does it offer both surplus-only and boost modes? Surplus-only charges purely from excess solar; a boost or hybrid mode tops up from the grid when you need a set amount of charge by a set time.
• What is the minimum charge rate? EV charging standards set a minimum current of about 6 A. On single phase that is roughly 1.4 kW of surplus, but on three phase it is roughly 4.1 kW, so a three-phase charger can sit idle on cloudy days unless it can switch to single-phase charging automatically.
• Does it talk to your inverter? Inverter makers such as Sigenergy, GoodWe, Fox ESS and Sungrow offer chargers designed to work with their own inverters, batteries and apps, which can simplify set-up. A standalone charger with its own CT works too.
• Will it drain your home battery? If you have a battery, the charger and battery need clear rules about which one gets surplus solar first.

App, scheduling and offline behaviour

A good app lets you set charging schedules around time-of-use windows, cap the charge, see the energy delivered in each session and receive firmware updates. Check what happens when your home internet drops out: the charger should keep working on its last schedule or a sensible default, rather than refusing to charge. If your car costs are reimbursed by an employer, a clear session log in kWh is useful; ask your employer or accountant what records they need.

Load management and three-phase supply

Load management, sometimes called dynamic load balancing, measures your whole-house demand and turns the charger down when the oven, air-conditioning and hot water are all running. It matters most in older homes with a modest supply, or homes adding an EV to an already electrified household. Load management can sometimes avoid a costly supply upgrade, although a licensed electrician still needs to assess your switchboard and mains capacity.

Three-phase chargers only make sense if your home already has three-phase power and your car accepts faster AC charging. Many cars accept up to 11 kW AC, some are limited to around 7 kW, and relatively few accept 22 kW. A 22 kW charger connected to a car limited to 7 kW simply charges at 7 kW.

Weatherproofing and safety features

Where the charger will live decides how rugged it needs to be. Compare these specifications:

• IP rating for dust and water resistance. A garage wall needs little protection, while an exposed driveway wall is better served by IP65 or similar.
• IK rating for impact resistance, useful where cars, bins or bikes may bump the unit.
• Operating temperature range, especially on west-facing walls that bake in summer afternoons, where some chargers reduce output to protect themselves.
• DC fault protection, either built into the charger or provided by a suitable RCD in the switchboard. Your electrician will confirm what the installation requires.

Installation must be carried out by a licensed electrician. Never wire a charger yourself or charge a car through an extension lead.

Features you can usually skip

• More power than your car or supply can use. Paying extra for 22 kW rarely changes anything at home.
• Card readers and access control on a private garage. They are useful on a shared driveway or at a business, not in most homes.
• Built-in touchscreens. The app does the same job, and a screen is one more thing exposed to weather.
• Vague "vehicle-to-home ready" claims. Bidirectional charging needs a compatible car, compatible charging equipment and network approval, so do not pay a premium for it on an ordinary AC charger.

If an EV will lift your household consumption noticeably, it is worth checking whether your solar system is sized for it; our solar system sizing guide explains how to account for extra load, and the hybrid vs string inverter comparison covers how inverter choice affects battery and EV integration.

Next steps

Write down your daily kilometres, your supply type (single or three phase), where the charger will be mounted and whether you have solar or a battery, then compare chargers against that list rather than against headline specifications. If you would like a professional recommendation and installation, request a free assessment from Blue Energy Solar. The 7 kW Home EV Charger (from $1,690) and Solar-Powered EV Charging with a solar-matching charger (from $1,990) are listed in the energy market; these prices are indicative and confirmed after a site assessment.

Frequently asked questions

Do I need a smart charger to charge on off-peak rates?

Not always. Many electric cars can schedule charging from their own app or dashboard, which works with a basic charger or even a portable cable. A smart charger adds value when you want solar surplus charging, load management, session records or coordination with a home battery. If you only ever charge overnight in a cheap tariff window, the car's own scheduler may be enough.

Does an EV charger need to be the same brand as my inverter?

No. A compliant charger can be installed alongside any inverter. Matching brands can make solar charging simpler because the charger, inverter and battery share one app and one set of measurements, so you may not need a separate CT clamp. A standalone charger with its own clamp is a sound choice when your inverter maker has no suitable charger or you plan to replace the inverter later.

Will my charger still suit a different car in future?

Generally yes. Electric cars sold in Australia commonly use the Type 2 connector for AC charging, so a Type 2 charger will suit most replacement vehicles. The main difference between cars is the maximum AC rate their onboard charger accepts, which only affects charging speed. A socketed charger adds flexibility because you can change the cable if a future vehicle needs something different.