How much does a portable EV charger cost in Australia?

As of mid-2026, basic 10-amp units start around $300 to $600, 15-amp versions run roughly $400 to $800, and adjustable units with swappable plug tails for 10A, 15A and 32A outlets cost about $500 to $1,200. Many EVs include a basic unit free with the car.

Can a portable charger fully charge an EV overnight?

Not from empty. At 2.3kW, a 60kWh battery takes more than 24 hours to charge fully. But overnight (say 10 hours) a 10-amp portable charger adds roughly 100 to 150km of range, which comfortably covers average daily driving of around 35km.

Will a portable charger help if I run out of charge on the road?

Only if you can park near a powerpoint for several hours, so as a roadside fix it's close to useless. If you're flat on the roadside you need a tow to a charger or a mobile charging service. A portable charger is prevention and flexibility, not rescue.

Portable EV Chargers: What They Are and When They're Worth It

Q: What is a portable EV charger?

A portable EV charger, or portable EVSE, is a cable with a control box that lets your EV charge from an ordinary powerpoint instead of a dedicated wallbox. A standard 10-amp unit delivers about 2.3kW, adding 10 to 15km of range per hour. Most new EVs in Australia come with one.

A portable EV charger (also called a portable EVSE or “granny charger”) is a cable with a built-in control box that lets your EV charge from an ordinary powerpoint. A standard 10-amp unit delivers about 2.3kW, adding 10 to 15 kilometres of range per hour: slow, but enough to replace an average day’s driving overnight. Most new EVs sold in Australia include one, and aftermarket units cost roughly $300 to $1,200 as of mid-2026 depending on amperage and features.

What is a portable EV charger, exactly?

The box in the middle of the cable is the actual “charger brains”: it talks to the car, sets the safe current limit and cuts power if anything is wrong. One end plugs into a wall socket, the other into your car’s Type 2 port (Type 1 on some older models).

The “granny charger” nickname comes from the UK, the idea being it’s what you use at granny’s house where there’s no proper charger, and it captures the role well: it’s the universal fallback that makes every powerpoint in the country a potential charging point.

Don’t confuse portable EVSEs with the DC “power bank” units used by some roadside operators; those are commercial gear. A portable EVSE is consumer kit that depends entirely on finding a socket. For what roadside services actually carry, see our guide to mobile EV charging.

What types can you buy?

Type	Power	Range per hour	Typical price (mid-2026)
10A (standard powerpoint)	2.3kW	10 to 15km	$300 to $600, often included with the car
15A (needs 15A socket)	3.3 to 3.6kW	~20km	$400 to $800
Adjustable multi-tail (10A/15A/32A)	Up to 7.4kW	Up to ~40km	$500 to $1,200

Things worth knowing before you buy:

A 15A plug has a wider earth pin and will not fit a standard 10A socket. You need a 15A outlet installed (a caravan-style socket), which an electrician can add for a few hundred dollars.
Adjustable units let you dial current down for dodgy circuits and up where the outlet supports it. The 32A tails use the same outlets found at caravan parks, which makes these popular with road-trippers.
Buy certified gear. The EVSE box is safety equipment. Stick to units with Australian certification (RCM mark) from established suppliers, not the cheapest import you can find.

How long does a portable charger take?

Worked example with a 60kWh battery: at 2.3kW, a full charge from empty takes about 26 hours. That sounds disqualifying until you reframe it: overnight, say 10pm to 8am, a 10A unit adds roughly 23kWh, which is 100 to 150km of range depending on your car. The average Australian car covers about 35km a day.

So for typical commuting, a powerpoint genuinely is enough, and plenty of owners run for months on the included cable before deciding whether to install a wallbox. Our home charging guide walks through that decision.

When is a portable charger worth it?

You rent, or you’re not ready to commit to a wallbox. No installation, and it moves house with you.
Road trips through regional Australia. Caravan parks with 15A and 32A outlets become overnight charging stops. An adjustable unit with multiple tails is the road-tripper’s Swiss Army knife.
Holiday houses, family visits, Airbnbs. Anywhere with a powerpoint becomes a destination charger.
As a backup. If your wallbox fails, or you’re caught short somewhere unexpected, the cable in the boot is cheap insurance.
Second car / low-kilometre drivers. If the car does 20km a day, a wallbox is overkill.

When is it not worth it? If your car came with one (many do) and you never leave the city, the included unit plus a wallbox covers everything; a second premium portable adds little.

What are the limitations and safety rules?

It’s slow. Plan around overnight stays, not quick stops.
The socket is the weak link. Charging pulls maximum current for hours. Use healthy, properly wired outlets; if a socket or plug gets hot to the touch, stop and get it checked.
Avoid domestic extension leads. If unavoidable, use a heavy-duty 15A-rated lead, fully unrolled, as a one-off rather than a routine.
Outdoors, keep the control box and connections dry and off the ground. Quality units are weather-rated, but puddles and powerpoints still don’t mix.
Don’t expect it to save you on the roadside. A portable charger needs hours and a socket. If you’re flat on the highway shoulder, you need recovery, not a granny cable: see what happens if your EV runs out of charge.

The honest summary: a portable EV charger is the least glamorous and most useful accessory in EV ownership. It won’t impress anyone, but it turns the entire Australian power grid into your backup charging network.