Frequently asked EV questions
Things you never knew you wanted or needed to know, about EVs.
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General
You can charge your vehicle at home (while you sleep) or at a public charging station (while you shop, get fit, get your hair done, at work,…).
They require much less maintenance than a conventional ICE vehicle, as an electric motor has far fewer moving parts and don’t need engine oil or transmission fluid changes. You less often need to replace break pads, as the electric motor is used to slow down the vehicle instead of the breaks. Because there’s no engine noise and vibrations and no fumes, because the battery is mounted underfloor with a low centre of gravity, and because electric motors offer instant torque, the driving experience is far superior, even for the cheapest EV models.
However, most people’s daily commute would be far below the range of any electric vehicle on sale today.
And as more public fast charging stations are being rolled out, it will soon become easier to charge to 80% percent in 25-45 minutes, the time it takes to do your weekly shopping. So in fact you are no longer loosing any time in a petrol station.
It’s also true, that electric cars are still more expensive upfront, but expected to reach parity with ICE vehicles by 2025. But over time, the savings in maintenance costs and no trips to the gas station (with fluctuating petrol prices) can offset that difference.
Charging
This can be done either at a public charging station or at home using a home charger or by using a standard 3-pin 10A plug charger.
For a 22kW public charger it takes approximately 2.5 hours.
For a 7kW AC installed home charger it takes 7 to 8 hours.
For 10A home charger with domestic plug supplied it takes up to 30 hours.
But is that even the right question? Most people charge their EV at home overnight, or they charge a % while having lunch or do the weekly shopping.
To improve home charging speed, you could invest in a 7.2kW AC single phase home charger/wall box and reduce charging times to just under 8 hours (or overnight).
There are some public charging stations owned by specific car manufacturers; these can only be used by vehicles from that manufacturer (for example the Tesla charging network).
If you charge from home, for example, the cost to fully recharge an EV is on average, less than half of what it would cost to fill up a similarly-sized ICE car.
Retail cost of power varies not only from state to state but even hour to hour.
To work out the exact cost, take the cost of a kWh of electricity and multiply it by the capacity of your EV’s battery:
$0.27c x 40kWh (capacity of the EV battery) = $10.80 for 270km of range for a Nissan Leaf, or $4/100km
Prices also vary if you recharge from, for example, a ChargeFox ultra-fast charger, which provides more convenience with shorter charge times at an additional cost.
Some public chargers even charge you when you reach full charge and you don’t move your vehicle within minutes.
On the other hand, some public charging at councils is free! Or if you’re a NRMA member, they offer their chargers for free too (for now).
For example at home, after a certain time at night when it is cheaper to charge.
A car charger (or EVSE, Electric Vehicle Supply Equipment) should be installed by a licensed installer, who complies with AS/NZ3000 wiring regulations.
Here are a few national companies that work with local installation partners, in no particular order:
- EVSE
- JetCharge
- Evolution
- Platinum Electricians
- or your local licensed electrician.
Expect to pay about $700-$1200 for the charger (tethered/untethered, 7kW-11kW-22kW), and $700-$1500 for the installation depending on the complexity.
For example: EO Mini Charger and installation by EVSE.
The EV’s battery management system (BMS) then slows the rate of the last 20% charge to fully charge the battery. This is a standard feature in all electric vehicles. You’d charge to 100% at a fast charging station when planning to do a long trip.
LFP lithium iron phosphate batteries on the other hand (like MIC Tesla M3’s battery) can and should be charged to 100% at least once a week.
Make sure you allow system updates which could include updates to charging locations.
Both Google Mpas and Apple Maps also show EV charging locations (although seems limited to bigger names only, like NRMA and ChargeFox). Alternatively, there are a number of third-party smartphone applications such as the Plugshare app, which show charging station type and location, and user reviews and photos. Apple Maps uses this Plugshare data to show information on its Maps app.
Another great planning app is A Better Route Planner. Then there are also applications from the charging companies themselves such as ChargeFox, Jolt, Everty, and others, which can also provide live status information about charging stations such as Status, Online/Offline, In use etc.
When you do need towing, your vehicle may need to be placed on skates as you may not be able to moves its wheels. Check your manual.
Other EVs can actually charge while being towed (for example Rivian), which in itself is also pretty neat. In addition to your main battery, EVs also have a 12V battery, which manages the critical vehicle systems.
One end of the charging cable is the standard three-prong household connector, on the other end your EV’s connector plug.
Level 2 is still AC, but at higher power. This is your home charger equipment level of charging at 7, 11 or 22kW.
Level 3 is DC fast charging at public charging stations, and uses a CHAdeMO, Type 2, or CCS type of connector plug (or Tesla equivalent).
Technical
But in addition to the size of the battery, it also depends on how slippery the car is (a low drag coefficient), the size and weight of the vehicle, and how you drive the vehicle, not unlike an ICE vehicle.
Regenerative breaking, a heat pump and preconditioning the battery before driving off can all improve the range.
For longer journeys, your EV’s Satellite Navigation system can prevent range anxiety by helping you plan the usage of rapid charge stations for top ups on the way and increase the total journey’s distance.
Driving at higher speeds will reduce range (as air resistance increases exponentially with speed), while driving at city speeds is better for maximising range. Additionally, using vehicle systems such as the climate control or heating will draw energy from the battery as well and will therefore reduce range. Cold exterior temperatures can also reduce range when the battery isn’t preconditioned before driving away.
This partially recharges the battery to maximize the EV’s range. Most EVs have different levels of regeneration, so that drivers can choose the battery recharging they would like, or prefer a style of driving more akin to ICE vehicles (without the recharge).
The centre of gravity is lower in EVs improving handling in corners. Some EVs are even dual motor (or more) providing all wheel drive, further improving the handling.
Some EVs provide heated seats which takes less power to keep yourself and passengers warm.
Through an app you can tell your car the warm up or cool, before driving away.
During charging, the battery will be warmed up to a certain temperature, so that even on cold days the battery performance will be optimised.
But during operation and on warm days, an EV battery warms up, and the liquid cooling system will cool the battery to optimise performance.
Other more powerful EVs can tow, but often with lesser capacity than their ICE counterparts, and often range is halved when doing so (obviously).
On the other hand, the Rivian R1T has a towing capacity of 5.5T and a Tesla Model X 2.25T.
A traditional combustion engine has hundreds of moving parts (rubbing against each other) and with increased complexity comes increased costs.
An EV saves you money short term on fuel, as well as over the long term on maintenance. Maintenance is often limited to air filters (for the cabin air), windscreen wipers and fluids, and over longer term tires, break pads, break fluid and 12V battery. No engine oil or transmission fluid changes, no spark plugs, no transmission belt,…
Safety
with the addition of extra regulations for high voltage system components.
EVs often include a range of state-of-the-art advanced and autonomous vehicle management features to assist the driver and keep all occupants safer whilst on the road.
EVs also get specific license plates, or at least an identifier, to identify them as Electric Vehicle in case there’s a fire and emergency services need to take additional or different precautions.
Just remember that in an ICE vehicle, there are constantly tiny explosions happening, and you drive around with a tank filled with combustable fuel.
Don’t believe us? Check out EV FireSafe.
Vehicles are approved to a high Ingress Protection rating for water and dust and can handle anything a regular car can.
Unlike a regular car, EVs don’t need air to function. The only air intakes present are for cooling and air conditioning the cabin.
(not recommended, but you can find videos of Teslas ploughing through stationary flood water)
Anything else
Or install solar panels and a home battery to charge daily for free.
The history of BEVs is as old (if not older) than ICE vehicles. When we mention EV on this page, we refer to this BEV, not any of the following xyEVs.
They can be charged with electricity using a plug but also contain an internal combustion engine that uses liquid fuel. The battery-only range is often very limited (30-60km). The vehicle switches between either engine automatically.
For example, at a traffic light the vehicle takes off using the electric motor, and when a certain speed is reached, the internal combustion engine takes over. Many car manufacturers now offer PHEV models.
Typically these types of vehicles are fuelled by hydrogen fuel and usually provide greater range than BEVs.
Hydrogen fuel can be generated using green energy, or fossil fuels (‘blue’ hydrogen). (for example Toyota Mirai)
This can be a small engine that only generates electricity and doesn’t provide motion to the vehicle (like some BMW i3 models).
Or it’s the main engine that both provides motion and electricity to the vehicle (like Toyota Prius).
Additionally, the vehicle’s braking system is also used to recharge the battery (’re-gen’).
which enhances the safety of pedestrians in the vicinity of the EV.
At low speeds EVs are very quiet, and the noise generator is used to warn pedestrians and cyclists. Premium brands engage audio designers, or even Oscar-award-winning composers, to create a distinctive sound for their EVs. At higher speeds, wind and tire noise and electric motor whine would be audible.
Some vehicles even come with optional interior sounds, generating an artificial rumble when accelerating.
Your car would have a regular home plug, and you could power your microwave while camping in a forest ding.
One EV could even trickle charge another EV, discharging power at a rate of up to 3.6kW, or about 20km per hour (or enough to get you to a faster charger).
Ideally, the EV’s system would prevent you from fully discharging your battery, probably leaving you with 30% or so to make it back home.
Again great for disaster relief, you could keep the lights on at home when the powergrid goes down. Newer EVs like the Ioniq 5, Rivian and Ford F-150 Lightning all come with V2L capabilities. Since you’re not connecting anything to the grid, there is less oversight