As we discussed in our previous article, battery capacity of an electric vehicle is important in determining MPGe, or the number of miles an EV can travel per 33.7 kilowatt hours (the energy equivalent of one gallon of gasoline). Generally speaking, a greater battery capacity means more efficiency and a higher MPGe rating (though this is not always the case). Let’s take a look at which EVs on today’s market have the biggest batteries and get the best mileage.
Electric Vehicles With Highest Battery Capacity
2022 Mercedes Benz EQS 450+
The Mercedes Benz EQS lithium ion battery has a capacity 107.8 kWh-the largest on the market today. The EPA gives the EQS a combined MPGe rating of 97 and an estimated range of 350 miles. When tested by Edmunds, however, the 2022 EQS obtained a record-breaking 422 miles on a single charge.
2023 Tesla Model S
Tesla comes in a close second with their 2023 Model S, which has a slightly lower capacity than previous models. The 100 kWh battery nonetheless gets a superior MPGe rating of 124 (combined highway and city), and an estimated range of 405 miles.
2022 Ford Mustang Mach E
Ford’s electric Mustang Mach E has a battery capacity of 98.8 kWh and an EPA rating of 103 MPGe. The car’s estimated range is 247 miles.
2023 Audi E-Tron GT
The 93 kWh battery for Audi’s E-Tron GT earns a combined MPGe rating of 82 from the EPA and an estimated range of 232 miles. We can see just how important battery capacity is to an EV’s efficiency by the significant reduction in MPGe with the loss of just 7 kWh when compared to the Tesla Model S.
Is a Bigger Battery Always Better for an EV?
You will notice that, despite having the largest battery on our list, the 2022 Mercedes Benz EQS has a lower MPGe rating. This is because determining efficiency in electric vehicles is not as straightforward as estimating miles per gallon of fuel. The overall rating accounts for energy losses that can be attributed to a wide variety of electronic functions within the car.
Mercedes’ advanced Battery Monitoring Systems and myriad other tech inside and out likely contribute to its lower than expected MPGe rating. With all the advanced computer systems this vehicle has in place, it is frankly a miracle of engineering that it is still able to achieve close to 100 MPGe. We may be biased, but we don’t think you can find an EV on the market today that so seamlessly combines efficiency with luxury.
Test Drive a Mercedes Benz EQS
If you are ready to make the switch to electric, stop by the Mercedes Benz of Littleton dealership to test drive a brand new EQS 450 or EQS SUV. Call or go online today to see what we have in stock.
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