Electric Vehicle Charging Time – Four years ago we played a game as a family while driving – who can see the next electric car? They are rare and sometimes you go a day without seeing one. Today, they are everywhere, every day, regardless of city or small town. Most people don’t know how many there are because they aren’t all visible (not just Tesla)!
With the rapid adoption of electric vehicles, the infrastructure for charging. There are charging speeds (ie vehicle or charger limiters), people’s driving habits and also general expectations. Without getting into the psychology of anxiety or other concerns, let’s look at some important points related to electric vehicle (EV) charging.
Electric Vehicle Charging Time
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There is a level 2 global charger standard and that is the J1772 connector. All vehicles have this outlet except the Tesla, which comes with an adapter.
The majority of individuals will drive less than 50 km per day, and their vehicle will be parked for at least 8 hours per night. This means that for those lucky enough to have access to charging at home, a simple Level 1 charger will suffice, providing 8km/h (60+km overnight range).
A level 2 charger at home will allow faster charging or allow charging to occur during off-peak hours (perhaps not start charging until 0100 – when electricity bill times go quickly this can be beneficial). On the rare occasion that you’ve come back from a long drive with a nearly dead battery, you still don’t have to worry because overnight you’ll charge enough for the next typical day of driving. If the trip needs to be back to back, visiting a regular level 3 charger is an easy way to increase the available range.
For those who do not have access to charging at home, level 3 is the same as stopping at a gas station and should be done approximately once a week depending on the car’s distance and distance traveled.
How Long Does It Take To Charge An Electric Car?
To answer this, it is important to return to our previous analysis of daily driving habits. If an individual has access to charging, it is rare that they need to charge at work (or the mall). Even for people who do not have access to charging at home, the rapid increase in the number of public fast charging stations makes their charging needs easy to access. I would consider the availability of jobs that charge benefits and not necessities.
In Part II Electric Vehicle Charging, our engineering team will discuss options for existing and new multi-family and mixed-use buildings.
Do you have any questions? Contact our talented engineering team today and we can answer all your electrical questions. Determining exactly how long it takes to charge an electric car is like asking, “How long does it take to cross the country?” It depends on whether you are on the plane or walking. Charging time depends on many variables, many of which are different – although the length of the charging cable can affect it – making an exact answer impossible. But we can give you some reliable guidelines.
Leaving aside the more minute variables, vehicle charging time boils down to a few key factors: power source, vehicle charging capacity, and battery size. Environmental conditions play a minor role, with extreme cold and hot weather increasing charge times.
Let’s Look At Charging Times For Some Of Today’s Popular Electric Cars
Let’s start with the resources. Not all electrical outlets are created equal. A common 120-volt, 15-amp outlet in the kitchen is a 240-volt outlet that powers an electric dryer like a spray gun for a garden hose. All electric vehicles can in theory charge their large batteries from a standard kitchen socket, but imagine trying to charge a 55 liter oil drum with a spray gun. Charging an EV battery using a 120-volt source—this is categorized as Level 1 under SAE J1772, the standard engineers use to design EVs—is measured in days, not hours.
If you own or plan to own an electric vehicle, you would do well to consider having a Level 2 240-volt charging solution installed in your home. A typical Level 2 connection is 240 volts and 40 to 50 amps. While fewer amps are still considered Level 2, a 50-amp circuit will power most EV onboard chargers (more on that in a minute). Because if you don’t optimize the efficiency of the vehicle’s onboard charger, the less-than-optimal power source is the limiting plate that increases charging time.
For the fastest charge, you’ll want to connect to a Level 3 connection, commonly known as a DC fast charger. This is equivalent to an EV filling a barrel with a fire hose. A provenly lethal direct current is pumped into the car’s battery, and miles of range are added in no time. Tesla’s V3 Superchargers pump up to 250 kW and Electrify America’s car defibrillators fire up to 350 kW of heart-stopping power. But like all charging, the flow stops when the vehicle’s battery pack (SoC) is nearly full. And the ability of vehicles to accept direct current varies. For example, the Porsche Taycan can charge up to 270 kW, while the Chevy Bolt EV can only handle 50 kW.
Generally, when the EV battery’s SoC is less than 10 percent or more than 80 percent, the DC fast charging speed becomes very slow; this maximizes battery life and limits the risk of overcharging. That’s why, for example, manufacturers often claim that fast charging will get electric car batteries to “80 percent charge in 30 minutes.” Some vehicles have a battery conditioning procedure that ensures the battery is at the optimal temperature for fast charging when you go to a DC fast charger. As long as you use the navigation system in your car to get there, that is.
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The last 20 percent charge can be doubled the time you connect it to a fast charger. The time it takes to fully charge the battery via a DC charger means the device is best used when traveling long distances and need extra electricity to get to your destination. Charging at home overnight – sometimes called top-up charging – is a better solution for getting the juice you need for the daily local drive.
As the quest for range supremacy continues, the battery capacity of some EVs has increased to absurd levels. Others aim for increased efficiency. This plays a big role in the loading time. Enlarge our oil drum to an 85 gallon unit. Even with a fire hose it still takes longer than a smaller 55 gallon barrel. While the GMC Hummer EV is built on an architecture capable of 350 kW intake, charging the 212.7 kWh battery compared to the 112.0 kWh pack found in the Lucid Air Grand Touring requires more time, even though the charging speed is the same. Lucid can travel over 40 percent more on a charge while having 100 kWh less in the battery pack than the Hummer. Efficiency, indeed.
There is no doubt that the manufacturer will establish a measure to express the charging time. But for now, know that charging an EV battery takes longer than filling the fuel tank of a gasoline-powered car no matter how and where you do it.
There is a common misconception that what plugs into an electric car is a “charger”. In fact, there are battery chargers in cars that convert AC from the wall to DC to charge the battery. The built-in charger supplies power to the battery pack safely and has its own power rating, usually in kilowatts. If a car has a 10.0 kW charger and a 100.0 kWh battery, it theoretically takes 10 hours to charge a discharged battery.
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To measure the optimal charging time for a particular electric car, divide the number of kWh of battery capacity by the amperage of the built-in charger and then add 10 percent due to the losses associated with the charger. This assumes that the power source can expand the vehicle’s charger.
A typical on-board charger is at least 6.0 kilowatts, but some manufacturers offer almost double that, and the number is more than tripled. The current Tesla Model 3 Performance, for example, has an 11.5 kW charger, which can take advantage of a 240-volt, 60-amp circuit to charge the 80.8-kWh battery, while the rear-wheel-drive Model 3 is coming. with a 7.6 kW charger. Calculating charging times shows that it will take almost the same amount of time to charge both cars’ batteries, even though the Performance model is about 30 percent larger. On
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