Work out how much charging you need each day
Most days, you only need to replace the energy used since the last charge. Start with how far you drove and how long the car will be parked.
A normal 40 km day
Result: about four hours. A ten-hour parking window leaves plenty of spare time in this example.
What would that charge cost? Multiply the 7.2 kWh by your electricity usage rate. It costs about $2.16 at 30 cents per kWh, or $1.08 at 15 cents per kWh. The Mode 2 cable and wallbox cost broadly the same to supply that energy when used on the same tariff; the wallbox mainly changes how quickly and conveniently it is delivered.
Three home charging options compared
What each option costs upfront
These are mid-July 2026 retail examples and basic-installation budgets, not a quote for a particular property.
| Option | Equipment cost | Electrical work and likely total |
|---|---|---|
| Mode 2 cable + 10 amp power point | $0 if the car includes one. Replacement 10 amp Mode 2 cables cost about $250–$550. | The cable needs no installation. If the existing power point and circuit are suitable, the cable total is $0–$550. Any assessment, new socket or circuit work costs extra. |
| Mode 2 cable + 15 amp power point | Some manufacturer-specified Mode 2 systems accept an interchangeable 15 amp supply lead; dedicated 15 amp cables cost about $250–$600. | A 15 amp socket has a wider earth pin and requires a licensed electrician to install it on a suitably rated circuit. A straightforward installation — existing switchboard, short cable run — typically costs about $200–$500. A new circuit, RCBO protection or a longer cable run adds to that. All-up estimate: $450–$1,100. |
| 7 kW Mode 3 wallbox | Current hardware examples run from about $800 for a straightforward smart wallbox to about $1,545 for a solar-aware unit. | A licensed electrician must install a dedicated circuit. Allow about $2,000–$2,500 all up for the unit and a basic installation. A long cable run, switchboard upgrade, trenching, load management or three-phase work can push the total higher. |
The electricity cost is the same at the same tariff regardless of which option you use. Faster charging (15 amp or wallbox) uses the same energy as a 10 amp socket for the same kilometres driven. A wallbox can lower the bill only when its extra speed or smart controls let you shift charging into a cheaper off-peak window or use surplus solar.
Get an itemised quote showing the wallbox price, installation, cable-run allowance, switchboard work and any load-management or three-phase costs. That makes it possible to compare quotes with each other and with the real $0–$550 starting point of a Mode 2 cable.
Some state and territory programmes may support eligible charging work. Check the Australian Government’s current houses and strata guidance before including an incentive in your budget.
How to choose the equipment
Confirm the exact car, property and proposed setup with the supplier and a licensed electrician before buying. Start with the outlet or installed circuit you can use, then compare features. A longer feature list does not make equipment safer or more compatible.
Portable Mode 2 cable
- Choose the outlet first: a 10 amp plug needs a suitable standard outlet; a 15 amp plug needs a matching 15 amp outlet on a suitably rated circuit. A 15 amp cable cannot turn a 10 amp outlet into a 15 amp supply.
- Match the car: confirm the vehicle connector, supported single-phase rate and exact compatibility. Extra advertised current cannot make the outlet or car accept more.
- Reach directly: choose enough length to connect without an extension lead, adaptor, tightly coiled excess, trip hazard or strain. Consider its stored size and weight if it will live in the boot.
- Check its operating conditions: follow the manufacturer's instructions for weather, temperature, plug position and supporting the control box.
- Check compliance and support: look for equipment lawfully supplied for Australia, the required compliance marking and documents, clear instructions, an identifiable model and local warranty support.
Adjustable current, a display, energy log or app may be useful, but they are conveniences—not proof that a socket or circuit is suitable. Check whether the car already provides scheduling and charge limits before paying for those features twice.
Fixed wallbox
- Choose a suitable power rating: compare the car's maximum AC input, the home's available supply and the hours it normally parks. A 22 kW-capable box cannot deliver 22 kW if the car, supply or installation has a lower limit.
- Choose tethered or socketed: a tethered unit keeps its cable attached; a socketed unit uses a separate compatible cable. Check reach, parking orientation and safe cable storage.
- Choose the smart features you need: tariff scheduling, solar-surplus charging, dynamic load management, access control, energy reporting and sharing between EVs solve different problems. Wi-Fi alone does not make a charger solar-aware.
- Plan for outages and ownership changes: ask whether basic charging works without internet or a subscription, how updates arrive, whether data can be exported and how access transfers if the charger or property changes hands.
- Price the installation: compare itemised quotes for the cable run, switchboard and protection work, load management, trenching, commissioning, warranty responsibility and ongoing fees—not only the box.
First list what the car already does: scheduled charging, a charge limit, app status and cabin pre-conditioning. A wallbox version of the same feature may still help with multiple cars, solar or a limited vehicle scheduler, but it should solve a defined need.
Check your weekly driving and your car's charging limit
- Your weekly pattern matters more than the total: 50 km every day is easier for a slow charger than one 250 km day followed by short days. Size your home setup for your typical week — public chargers cover the occasional heavy one.
- The car can limit charging speed: some EVs accept less than 7 kW at home even with a 7 kW wallbox fitted. Check your model's AC charging rate before buying hardware.
Safe home EV charging
Have a licensed electrician assess whether the power point, circuit, switchboard and charging location suit regular EV charging. Plug a portable cable directly into the approved power point—do not use an extension lead, adaptor or power board. A thicker lead, adaptor or lower current setting does not override the vehicle or cable manufacturer’s instructions and does not validate an unknown socket or circuit. If equipment is damaged, unusually hot or repeatedly trips electrical protection, stop charging and do not keep resetting it; follow the manufacturer’s instructions and have the setup checked.
Common home-charging questions
What is a 15 amp power point and is it worth installing for EV charging?
A 15 amp power point looks like a standard Australian socket but has a wider earth pin and is wired on a higher-rated circuit. With a compatible Mode 2 cable it delivers about 3.3 kW — roughly 18 km of range per hour — compared with about 10 km per hour from a 10 amp socket. That is nearly double the overnight charging speed for a fraction of the cost of a wallbox.
Installation typically costs $200–$500 for a straightforward job (existing switchboard capacity, short cable run). Add a Mode 2 cable with a 15 amp plug ($250–$600) and the all-up cost is roughly $450–$1,100 — substantially less than the $2,000–$2,500 budget for a wallbox. A licensed electrician must do the work; they will assess whether the circuit, switchboard and location are suitable. The 15 amp option can suit many routines when a 10 amp socket is too slow and the overnight window still replaces the kilometres driven.
Will slow charging from a power point damage the battery?
Normal AC charging is a supported charging method when the equipment and electrical setup are suitable. Battery guidance varies by vehicle, so follow the exact car’s charge-limit and temperature instructions rather than treating one charging habit as universal.
Are a Mode 2 cable, granny cable and portable charger the same thing?
Usually, yes. All commonly describe the portable lead with a control box that connects an EV to a power point. “Mode 2” is the technical connection method; “granny cable”, “granny lead”, “mobile connector”, “portable charger” and “trickle charger” are common informal names. Check the plug, current rating and vehicle connector rather than relying on the nickname.
Will a 7 kW home charger always charge at 7 kW?
Not always. The wallbox, the car and the home's electrical supply can all limit the actual speed. Some cars accept less than 7 kW at home, and some homes may not support the full rate without electrical upgrades.
Do renters or apartment residents need a wallbox?
Not necessarily, but the path is more involved than for a freestanding home. Key things to work through:
- Permission: A wallbox on common property or a shared car park requires body corporate or owners corporation approval. Request this in writing before purchasing hardware.
- Metering: Shared electrical circuits make it harder to bill charging back to your unit. Some buildings use sub-metering or a separate dedicated circuit; your body corporate secretary or strata manager can advise.
- Renters: Your landlord's permission is required for any fixed installation. Some states include EV charger access in renter rights discussions — check your state's tenancy authority for current rules.
- Portable charging: If a dedicated circuit is not possible, a portable Mode 2 cable from a suitable power point in the car park — with the landlord or body corporate's consent — is a common interim solution.
Assumptions and sources
- Australian Government: Definitions for electric vehicles — common names including granny charger, trickle charger, Level 1 and Level 2.
- ARENA: V2X.au summary report — IEC Mode 2 and Mode 3 definitions.
- Australian Government: How to charge your electric vehicle — home options, charging power and safe cable guidance.
- RACV: Installing an electric car home charger — $2,000–$2,500 budget for a wallbox and basic installation, plus installation variables.
- Supercheap Auto: EV charging range and Tesla Australia: Mobile Connector — current 10 amp Mode 2 cable examples.
- EVSE Australia: 15 amp Type 2 portable EV charger and MotiveX: Smart Type 2 adjustable 15A charger — current 15 amp Mode 2 cable examples.
- One Point Electrical: 15 amp powerpoint installation guide and Advoltage Electrical: 15 amp power point installation Brisbane — 15 amp installation cost context.
- Tesla Australia: Gen 3 Wall Connector and myenergi Australia: zappi — current wallbox hardware examples.
- Energy Safe Victoria: online marketplace buyer's guide — Regulatory Compliance Mark and Australian supplier guidance for electrical equipment.
ChooseEV assumes 18 kWh/100 km including charging losses, a 1.8 kW 10 amp power-point rate, a 3.3 kW 15 amp power-point rate and a 7 kW wallbox. These are editorial assumptions, not a result for a particular car or property. Retail prices can change and installation requires a property-specific quote. Cost guidance and sources were checked 15 July 2026.