How to choose a charge box for your home

Charge boxes come in many different varieties. Choosing the right one can be critically important for making the best, cheapest, and most environmentally friendly, use of your electric car.

Smart or dumb? Price range? Charging capabilities? There are plenty of stats and facts to go through for electric car owners looking to buy a charge box for their homes.

In this overview article, we want to look at some of the various qualities that can help decide what charge box is the right one for you. We have also mapped out how some of the most popular charge boxes on the market perform in relation to these qualities.

The charge boxes in question include Easeebox, Charge Amps, Go-e, EVBox, and DEFA. Below, you can see how they perform in various categories. Read on to find out more about the individual criteria and what they cover.

 

Charger Online Design Connection Price Charges
Easeebox Home Wi-Fi, 4G Outdoor / Indoor Fixed cable Quote upon request  22 kW max
Charge Amps Halo Wi-Fi Outdoor / Indoor Fixed cable or socket only Contact reseller 11 kW max
Go-e Home Wi-Fi, LAN Outdoor / Indoor Fixed cable or socket only Quote upon request 22 kW max 
EVBox Elvi Wi-Fi, Bluetooth Outdoor / Indoor  Fixed cable or socket only Quote upon request 22 kW max
DEFA eRange IQ 710477 Wi-Fi, LAN Indoor / Covered Fixed cable Determined by installer  22 kW max 

 

Smart or Dumb?

One of the most critical aspects of charge boxes is how smart they are. A “dumb” charge box is one that simply charges the car, period. For some owners, that is perfect. For others, a smart charge box is a better choice. These are charge boxes with the ability to connect to Wi-Fi or PLC. Through the connection, you can automate, monitor and control charging, review past performance through True Energy’s app. Having a smart charge box is also a requisite for participating in demand response programs that can earn you monetary rewards.

True Energy’s app also enables you to optimise charging for when electricity prices and the climate impact of energy production (something closely linked to how much of the production at a given time that is coming from renewable energy sources) are lowest.

 

Design: Hardwire or Plug-in

There are two standard ways of connecting a charge box to your home’s energy grid: hardwired or plug-in. Hardwired means that the charge box must be permanently attached to the electric supply. If you want to remove it, you must open up the charger and remove the wiring. A plug-in charge box is not permanently connected to the electric supply. Instead, it is plugged into an electrical receptacle (generally speaking a power outlet).

The specific kind of solution you may want to invest in can be tied to how quickly you want to charge your vehicle (see more later in this guide). Both electric cars and their batteries are developing at a rapid pace. Today, few to no home chargers will need to be more than 11kW, as this is the maximum rate at which most cars can charge. It may also be the case that some homes will not have sufficient charging infrastructure (cables and connections to the energy grid) to safely accommodate charging at 11kW or above.

 

Features, Options and Extras

Options and extras for a charge box can involve a long list of different choices. Some may be more relevant and useful than others. It all depends on your situation and needs. As with other aspects that should form parts of the decision-making process, you should be aware that the market for electric vehicles – and the features and extras you may want to consider – is not static. Think about the future as well and your current needs before making a final call.

Some of the options that we could consider, if we were making the decision, would include design. In this context, we are talking about both if it is weather-proof enough to be placed outside or on the side of an uncovered wall. We are also considering the physical form. This is, after all, something you will be using on a daily basis. The colour, shape and ease-of-use should all be considered before a final purchase is made.

Furthermore, the charge cable length, the ability to neatly wrap it up when not in use, added safety features, locking features and type of internet connectivity are all features and options we would consider. Finally, most of the charge boxes come in different max kW charging modes. Here, we would generally recommend charge boxes with a minimum of 11kW.

 

Cost

Charge boxes have a broad price range. You can generally expect to spend somewhere between $400 and $1,200. The price may be linked to features such as maximum charge capacity.

There may be cheaper versions on the market, but you will want to secure a high quality, safety-certified electric vehicle charging station.

That said, spending more money is not always equal to getting more. You might be able to secure good deals through special offers and discounts, or by purchasing a charge box through your energy utility. The latter may also ease integration in some situations, such as  where you can earn monetary rewards for making your car available as part of a buffer to the energy grid. This is a service that True Energy offers in collaboration with partner utilities.

 

Charge speed

Charge boxes are going to be equipped to deal with either 120 volts, 240 volts or both. If they are capable of both, the charger is referred to as a Level 1/2 charger.

For some manufacturers, 240 volts (Level 2) is sold as an add-on option. One of the benefits of Level 2 charging is that it is faster. Calculating exactly how quickly you can expect your EV to charge – and how far it can drive on a given charge – is a bit of a science. One reason is that charge speed also depends on ampere (often what kind of plug you have).

However, a good rule of thumb is to figure out how many kilometres you can drive by using 1kWh of energy. Most cars will display this. Based on this, it should be possible to calculate the charge speed.

Charge speed is, as previously mentioned, linked to maximum kW. A related consideration is whether you need rapid charging at home at any point. If your electric car is solely used for commuting, meaning one trip in the morning and one in the afternoon, you have all night to charge your car and can easily ‘make do’ with lower charge speeds.

 

Other considerations

Other features and abilities can be significant, depending on your specific situation. For example, outdoor-rated will be extra crucial for users who do not have a garage or similar to park their EV inside. Here, you will want to know the difference between NEMA 3 and NEMA 4. The latter indicates that the charge box has a bit more protection against weather and water.

The length of charging cable that you get as standard may also be important, as is the case for a warranty’s specifics. For others, it may be the ability to review charging session history, integration with Amazon Alexa or that it has been certified by a nationally recognised testing laboratory.

 

What is our recommendation?

Considering all of the above may have helped you in many regards, but it may not have provided you with a clear cut answer. The intent of this article has not been to provide such an answer. Instead, we hope that this article has helped you with regard to what features you need to consider.

Every electric car owner has a unique situation and the answer to what charge box is best will vary over time.

To make a general statement, we would recommend that you get a charge box with Wi-Fi capability that can link to third-party solutions capable of optimising your charging so that it can be either as cheap or climate-friendly as possible. Outdoor proof is also preferable, as this allows you to place the charger where you wish and not have to worry about whether it is damaged by the weather. Fixed cable can provide the best protection of your existing electricity setup, but socket-ready charging is also good for some situations – however, if you are going to aim for higher kW, then fixed cable is probably the best. With regard to kW, we would recommend going for 11kW, which should serve you well for a mix of charging needs.