You’ve just picked up your new electric vehicle. The dealer hands you a cable with a plug and says, “This is your charger.” But then someone tells you that’s not good enough.
The portable charger that comes with your car does work. For some people, it’s all they ever need. For others, it’s only a short-term fix that can soon become frustrating.
It really depends on your lifestyle, your home, and how you use your car.
At PSC Energy, we install EV chargers across Sydney and regional NSW every day, so we’ve seen both sides of this debate. This guide will give you all the facts you need to decide what’s right for you. There’s no sales pitch here.
In this article, you’ll learn about the following:
- What Is a Portable EV Charger?
- What Is a Fixed EV Charger?
- Portable vs. Fixed EV Charger: Charging Speed Compared
- Is It Safe to Use a Portable EV Charger Every Night?
- Who Is a Portable EV Charger Right For?
- Who Should Get a Fixed Home EV Charger Installed?
- What Does EV Charger Installation Involve?
- The Solar Angle: Why a Fixed Charger Unlocks More Value
- FAQ: Portable vs. Fixed EV Chargers in Australia
By the end, you’ll understand how each charger works, the real differences in speed, when a portable charger is enough, and when a fixed wall charger makes sense.
What Is a Portable EV Charger?
A portable EV charger is the cable your car manufacturer includes when you take delivery of a new electric vehicle. In Australia, people commonly call it a granny charger or a trickle charger. The technical name is a Mode 2 EVSE, which stands for Electric Vehicle Supply Equipment.
It has a standard plug on one end and a car connector on the other. You plug it into a regular 10A household power point, the same type you use for a lamp or a phone charger, and your car charges.
Key things to know about portable EV chargers:
- They require no installation. You plug in and charge.
- They work with any standard Australian power point.
- You can take them anywhere: a holiday house, a friend’s place, a caravan park.
- Most deliver 2.2-2.4 kW of power on a standard 10A outlet.
- Some models support a 15A outlet and deliver around 3.3 kW.
What Is a Fixed EV Charger?
A fixed EV charger, also called a wall charger or home EV charging station, is a dedicated unit hardwired into your home’s electrical system by a licensed electrician. In Australia, these are typically Level 2 chargers.
Key things to know about fixed EV chargers:
- They require professional installation by a licensed electrician.
- They deliver 7 kW on single-phase power, which most Australian homes have.
- On three-phase power, they can deliver up to 22 kW.
- They mount permanently to a wall in your garage or on the exterior of your home.
- Most modern fixed chargers include smart features such as scheduling, solar integration, app control, and energy monitoring.
Popular fixed charger brands installed by PSC Energy include the Tesla Wall Connector, Enphase IQ EV Charger 2, Sigenergy AC EV Charger, and myenergi zappi.
If you’re interested in learning a bit more about charging EVs, you might want to check out the following article titled, How Much Solar (and Battery) Do You Need to Charge an EV in Australia?
Portable vs. Fixed EV Charger: Charging Speed Compared
This is where the main difference shows up. Speed isn’t just about convenience. It decides whether your car will be ready to drive each morning.
Portable charger speed on a standard 10A Australian power point:
- Power output: 2.2 kW.
- Range added per hour: roughly 10 to 14 km.
- Time to charge a 60 kWh battery from flat: approximately 25 to 27 hours.
- Time to add 100 km of range: approximately 7 to 10 hours.
Portable charger speed on a 15A outlet:
- Power output: approximately 3.3 kW.
- Range added per hour: roughly 15 to 20 km.
- Time to charge a 60 kWh battery from flat: approximately 18 hours.
Fixed wall charger speed on single-phase power:
- Power output: 7 kW.
- Range added per hour: roughly 35 to 45 km.
- Time to charge a 60 kWh battery from flat: approximately 8 to 9 hours.
Fixed wall charger speed on three-phase power:
- Power output: 11 kW or 22 kW.
- Range added per hour: up to 100 km, limited by the car’s built-in charging limit.
- Time to charge a 60 kWh battery from flat: approximately 3 to 6 hours.
If you drive between 30 and 80 km a day, a 7 kW wall charger will easily recharge your car overnight, often with time left over.
A granny charger at 2.2 kW might not keep up, especially if your battery is large.
Is It Safe to Use a Portable EV Charger Every Night?
A portable charger is not unsafe by design. The problem is the load it places on a standard household power point over many hours.
A standard 10A power point is rated for continuous loads at 80% of its capacity, which means a continuous draw of 8A is the safe norm.
An EV charger running overnight at 10A pulls the full rated current for 7, 8, or 10 hours straight. No other household appliance does this routinely.
The risks that come with extended portable charger use:
- Power points with worn or corroded contacts overheat under sustained load.
- Plugs get warm and, over time, begin to deform or discolour.
- Extension cords introduce resistance and heat. They are never suitable for EV charging.
- A damaged power point may not show signs of trouble until a serious problem develops.
This doesn’t mean something will definitely go wrong. It just means your power point should be in good condition, and you should check the plug and socket regularly if you use a granny charger for a long time.
If you plan to use a portable charger regularly, ask a licensed electrician to inspect or replace the power point first. A new, high-quality 10A or 15A outlet installed specifically for EV charging is a low-cost way to significantly reduce the risk.
A fixed wall charger eliminates this concern entirely. It connects directly to a dedicated circuit in your switchboard, rated specifically for continuous EV charging loads.
If you’re interested in learning a bit more about public charging stations, you might want to check out the following article titled, Electric Vehicle (EV) Charging Guide 2026.
Who Is a Portable EV Charger Right For?
Portable chargers work well in certain situations, but they aren’t the best choice for everyone.
A portable EV charger is a good long-term option if:
- You drive fewer than 30 km per day and have 8 or more hours of overnight charging time.
- You have a plug-in hybrid vehicle (PHEV) with a smaller battery, typically under 20 kWh, which a granny charger can handle overnight.
- You rent your home and cannot install a permanent charger.
- You travel frequently and want a charger you can take with you.
- You want a backup option in case your main wall charger fails.
The portable charger is also a true emergency backup. Most EV drivers keep it in the boot, even after they install a wall charger at home. That’s exactly where it belongs.
Who Should Get a Fixed Home EV Charger Installed?
For most daily EV drivers, a fixed wall charger is the better choice. Here’s why it stands out.
You should get a fixed home EV charger installed if:
- You drive more than 30 km per day and want a full charge every morning, without having to calculate whether it will finish in time.
- You have solar panels and want to charge your car from surplus solar during the day.
- You want smart charging features, such as scheduling off-peak charging, monitoring energy use, or setting charge limits from an app.
- You plan to add a home battery or already have one and want the charger to work with it.
- You have a long-range EV with a battery over 50 kWh, where a portable charger cannot keep pace with daily use.
- You want to future-proof your home for bidirectional charging, known as V2H or V2G, as more vehicles and chargers support it.
- You want a clean, permanent installation rather than a cable draped from a power point in the corner of the garage.
It’s important to know that a wall charger’s speed really matters if you often use most of your battery. If you drive a lot, commute daily, or use your EV for work, a wall charger removes the daily hassle you’d eventually notice with a portable charger.
If you live in an apartment and want to purchase an EV, you might want to check out the following article titled, ReadySteadyPlug EV Charging for Apartments In NSW.
What Does EV Charger Installation Involve?
Installing a fixed wall charger is not a complex job for a licensed electrician, but it is not a DIY project either. In Australia, all EV charger installations must be carried out by a licensed electrician.
What happens during a typical installation:
- The electrician assesses your switchboard to confirm it has capacity for a new dedicated circuit.
- A circuit runs from the switchboard to the chosen mounting location.
- The charger mounts to the wall and connects to the dedicated circuit.
- The electrician tests the installation and provides a certificate of compliance.
Factors that affect how straightforward an installation is:
- The distance from the switchboard to the charger location.
- Whether your switchboard needs an upgrade to handle the additional load.
- Whether you want single-phase or three-phase charging.
- Whether the charger needs to integrate with an existing solar or battery system.
If you are installing a wall charger along with a solar system or battery, plan both together. Organising the installation at the same time saves time and avoids extra work later.
The Solar Angle: Why a Fixed Charger Unlocks More Value
If you have solar panels, a fixed wall charger changes the economics of EV charging.
A portable granny charger draws power at a flat 2.2 kW. You cannot schedule it, control it through an app, or link it to your solar generation. It simply charges at whatever rate it runs.
A smart fixed wall charger can do all of the following:
- Monitor your solar production in real time and adjust charging to match.
- Ramp up charging when your panels produce excess power.
- Slow down or pause charging when your home needs that power for other appliances.
- Schedule charging to run overnight during off-peak grid tariff periods.
- Integrate with your home battery to avoid pulling from the grid unnecessarily.
The bottom line is that on sunny days, you can charge your car almost entirely from your solar panels. For many households, this can bring daily transport energy costs close to zero.
You can’t get this level of solar integration with a portable charger. That’s one of the best reasons to upgrade if you already have solar panels.
Wrapping Up: Power Point of No Return
Choosing between a portable and fixed EV charger really comes down to one thing: does your driving routine match what a portable charger can handle?
If you’re a light daily driver, a renter, or have a PHEV, the granny charger will do the job. But if you drive a long-range EV every day, especially with solar panels, a fixed 7 kW wall charger is the smarter long-term choice.
PSC Energy installs EV chargers every day across Sydney and regional NSW. If you need help choosing between a portable and fixed charger, or you’re ready to install one, our team will give you honest advice about what fits your home and lifestyle. It’s what we do.
If you’re interested in learning more about EV chargers, you might want to check out this guide titled, The 10 Best Home EV Chargers in Australia.
FAQ: Portable vs. Fixed EV Chargers in Australia
Can I use a portable EV charger as my only home charger?
Yes, you can. It works for some lifestyles, particularly drivers with PHEVs, renters, or people who drive fewer than 30 km a day. The limitation is speed. A granny charger adds roughly 10-14 km of range per hour, which may not keep up with daily driving if your battery is large.
How slow is a granny charger compared to a wall charger?
A standard 10A granny charger delivers 2.2 kW. A fixed 7 kW wall charger delivers more than three times that power. For a 60 kWh battery, the granny charger takes roughly 25 to 27 hours to charge from flat; the wall charger takes around 8 to 9 hours.
Is it safe to use a portable EV charger every night?
It can be, provided the power point is in good condition, and you use it on a proper outlet. The concern with nightly portable charging is that a 10A power point runs at full load for many hours straight. Ask an electrician to inspect or install a dedicated outlet if you plan to rely on a portable charger regularly.
Do I need a fixed EV charger if I have solar panels?
If you want to charge from surplus solar during the day, yes. A smart fixed wall charger adjusts its charging rate based on the amount of power your panels produce. A portable granny charger cannot do this.
What is the difference between a portable EV charger and a fixed charger for renters?
Renters who cannot make permanent modifications to their property are usually better suited to a portable charger, or they can explore upgrading to a 15A outlet with landlord approval. Fixed wall chargers require mounting a unit to the wall and running a dedicated circuit, both of which require landlord consent.
Can I use a portable EV charger with an extension cord?
No. Extension cords are not suitable for EV charging. Standard extension cords use cable that is too thin for the sustained current an EV draws. Even heavy-duty extension cords can heat up under this load, posing a safety risk. Always plug a portable charger directly into a wall outlet.
