How To Charge Two Electric Cars at Home | Helpful Info

Owning an electric vehicle (EV) comes with many benefits, such as reduced fuel costs, a thrilling driving experience, and making a green statement. However, if your family owns two electric cars, you probably want to charge both simultaneously at home.

Read on for more insights into the different ways you can charge two electric cars at home. I’ll also explain if you can charge two Teslas at home, whether a level 2 charger is worth it if electric cars can charge each other, and if it’s cheaper to charge your Tesla at home or at a Supercharger.

How Can I Charge Two Electric Cars at Home?

You can charge two electric cars at home using one of the following methods:

  • Install a charging station for each vehicle.
  • Invest in a dual-socket charge point.
  • Switch your current charger between both EVs.
  • Get a level 2 charging station.
  • Use two high-amperage extension cords.

Keep reading as I’ll now go over each of these options in more detail. You’re guaranteed to find a suitable choice for your usage scenario.

How-To-Charge-Two-Electric-Cars-At-Home
Whatever the case, ensure you’re using an efficient and safe method for charging your EVs at home. Installing a separate level 2 charging station or twin socket charge point is generally the best option as they have a faster charge time and save you from going back and forth between charging units.

1. Install a Charging Station for Each Vehicle

If you’re sure that you’ll need to charge your EVs at home frequently, you should install separate charging stations for each vehicle. A single socket often takes longer to charge the car when two or more units use that station. You can avoid this issue by getting a charging station for each vehicle.

Here are the steps to follow to install an EV charging station:

  1. Hire a professional electrician to install the unit. 
  2. Purchase an electric vehicle charging station from an automotive store or online retailer.
  3. Pick a suitable location for the stations.
  4. Assemble, test, and install the charging station.

If you’re at a loss, don’t worry. Here’s a video guide that may come in handy during the installation process:

Caveat: Installing separate charging stations requires some home electrical wiring and knowledge of installing chargers. Most people hire professional electricians to carry out the installation process, as this is not a simple DIY task. As for choosing a location, make sure the spot is close to an electrical socket and doesn’t pose any safety hazard (like flooding or dripping).

Pro Tip: Make sure your electrician installs the unit as per the manufacturer’s instructions for safe and efficient operation. Most electricians will follow the installation instructions if provided.

2. Invest in a Dual-Socket Charge Point

If you don’t feel like installing separate charging stations, another option is to get a twin socket charge point. This device plugs into a single wall socket but simultaneously delivers a full charge to two vehicles. This option is less expensive than installing separate charging stations, and you only need to install the unit once.

If you choose to install a dual-socket charger, here’s what you need to do:

  1. Hire a certified electrician to install the unit. 
  2. Select an appropriate twin socket charge point for your EVs.
  3. Choose the installation site.
  4. Assemble, test, and install the charging station.
Chargepoint Home Flex Electric Vehicle (Ev) Charger Upto 50 Amp, 240V, Level 2 Wifi Enabled Evse, Ul Listed, Energy Star, Nema 6-50 Plug Or Hardwired, Indoor/Outdoor, 23-Foot Cable
ChargePoint Home Flex Electric Vehicle (EV) Charger up to 50 Amp, 240V, Level 2 WiFi Enabled EVSE, UL Listed, Energy Star, NEMA 6-50 Plug or Hardwired, Indoor/Outdoor, 23-Foot Cable

3. Switch Your Current Charger Between Both EVs

If you don’t want to spend money on separate charging stations or a twin socket charge point, try switching out your current wall charger between both EVs when necessary.

Switching your current charger between both EVs is relatively simple compared to installing an additional unit. All you need to do is wait for one EV to complete its charge and unplug the charger, then plug it into the other vehicle’s charging port.

However, this option is not very efficient. You may find it tedious having to switch the charger back and forth every time you need to use either vehicle. Besides, some EVs take up more power than others; you may find the process taking longer than necessary.

Can-You-Install-A-Level-3-Charger-At-Home

If you would like to find out if You Can Install a Level 3 Charger at Home and what the implications are, check out this article that I wrote.

4. Get a Level 2 Charging Station

Level 2 charging stations are the fastest way to charge your EVs at home. A low-end level 2 station delivers up to 32 amps of electricity, enough to recharge an EV in 8–10 hours.

Here’s what you need to do to install a level 2 charging station:

  1. Hire a professional electrician to install the charger.
  2. Purchase a level 2 charging station.
  3. Find a suitable site for the charging station.
  4. Assemble the charger and install it at the intended location.

Note: Level 2 charging stations are costlier than level 1 stations, so most people consider this option as a last resort. They are also bulkier as they require a dedicated electrical circuit to operate correctly.

However, if you often need to charge your EVs at home and have the financial means, investing in a level 2 charger makes sense. Additionally, you should ensure your EVs are compatible with the charging station before buying the level 2 charger.

That said, if you’re in the market for a level 2 charger for your EVs, I recommend getting this AmazonBasics EV Charging Station from Amazon.com. It’s designed for both indoor and outdoor installation, safe, and reliable. Besides, it’s water and dust resistant, making it an excellent fan for the money if you need a durable charger.

Amazon Basics Electric Vehicle (Ev) Level 2 Charging Station, 32 Amp - 18 Feet

Click on the image above to view more details on Amazon.

5. Use Two High-Amperage Extension Cords

If you have two EVs but don’t feel like installing separate charging stations or a level 2 charging point, another option is to use high-amperage extension cords. With this method, you can charge your EVs using separate wall sockets.

A high amperage extension cord delivers 20 amps of electricity, enough to charge an EV. However, using extension cords isn’t a good idea as this option poses significant safety hazards. Therefore, it’s advisable to use this approach as a last resort.

Although this alternative is cheap and easy to implement, it has some significant disadvantages. 

For one thing, it’s not safe to use high-amperage extension cords due to the risk of electrical shock and fire. These cords heat up when used for a long time and can cause damage if they get too hot or short-circuit.

As an added bonus to this article, I’ve created this easy-to-use charging calculator. Simply input your model, charging wattage, and charging percentage, and you will get the estimated time it will take to charge a Tesla in terms of hours. You can play around with numbers a bit just to see how charging time changes:

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Tesla Charging Calculator (Time):

Estimated Time It Takes To Charge Your Tesla

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In addition, this method takes longer than charging at level 2 stations or using twin socket charge points. Therefore, it’s not a practical solution and is best left to emergencies.

Lastly, be sure to check the wattage of the extension cords you’re using. Although this may vary from model to model, it’s best if your extension cord delivers at least 10% more amps than your car’s charge port.

For example, if your electric vehicle has a charging port of 5 amps, your extension cord should be at least 6 amps. Doing so reduces the risk of overheating the cord.

Remember: Invest in high-amperage extension cords as a last resort. Most manufacturers caution against using extension cords for charging your EVs at home, so be sure to check your car’s manual before using this option.

Can I Charge Two Teslas at Home?

You can charge two Teslas at home. You can do that by installing a dual-socket charging station or using separate charging points. Ensure your EVs are compatible with the charging station you’re planning to use.

Also, unless you’re a qualified electrician or electrical engineer, it’s best to leave the installation of charging stations and sockets to professionals. Trying to install one yourself may put you in harm’s way.

Is a Level 2 Charger Worth It?

A level 2 charger is worth buying if you have an electric vehicle. This type of charger can add about 25 miles (40.23 km) of range for every hour it’s plugged in. Therefore, it’s much better than a level 1 charger, which delivers only 4 miles (6.43 km) of range in a similar duration.

Therefore, if you’re looking for a quick, efficient alternative to a level 1 charger, a level 2 charger won’t disappoint.

Charging LevelVoltageCharging SpeedConnection TypeIdeal Location(s)
Level 1120V3–5 miles (4.82-8.04 km) of range per hourJ1772Home, work, and public
Level 2208 – 240V12–80 miles (19.31-128.74 km) of range per hourJ1772Home, work, and public
Level 3400 – 900V180–1200 miles (289.68-1,931.21 km) of range per hourComboPublic
Here’s a table showing how a level 2 charging station stacks up against the alternatives: level 1 and level 3 charging points:

Frequently Asked Questions

Can Electric Cars Charge Each Other?

Electric cars cannot charge each other. While two electric cars can be plugged into the same charging station, they won’t charge each other.

Is It Cheaper To Charge Tesla at Home or at Supercharger?

It’s cheaper to charge a Tesla at home than a supercharger. To fully charge a Tesla Model 3 at home, users spend about $0.055 per mile of range and about $0.104 at a supercharger.

In a nutshell, you should only resort to using the supercharger if you need a quick charge. The slower charge you get at home is both cheaper and better for your battery in the long run.

EV Speedy’s Take

If these options are out of your financial reach, don’t fret! There are still a few cheap and easy ways to charge both EVs at home without worrying about safety hazards or taking up too much space in the garage.


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Erwin Meyer
Erwin Meyer

Thanks for visiting evspeedy.com. The goal of this site is to be a helpful resource for Tesla and EV owners as this is where my passion lies. I was a TSLA shareholder before the hype and still am. I also believe in Tesla’s speedy mission to accelerate the world to a sustainable future.