Image Credit: Kim Java/YouTubeThere is no denying that there are more EVs on the road now than ever before. While they aren't quite as popular as manufacturers would hope, there are still some excellent electric cars on the market, and even better deals when you are looking at second-hand ones.But there are a few things you have to adjust to when you buy an EV. Things like where the best places are to recharge, installing a charger at home, how the temperature can affect your range, etc. Plus, there are rookie mistakes that can easily be made when you buy an EV.YouTuber Kim Java has explained the biggest rookie mistake to avoid if you are a first-time buyer of an EV. She has owned five EVs over the last five years, and thus is well placed to explain what you should and shouldn't do.AdvertisementAdvertisementShe states that the rookie mistake involves your charging habits. It would be easy to simply plug in an EV at home and assume you are saving a lot of money. However, Kim Java has shown there is a lot more to owning an EV than that.Charging Habits Can Dictate How Much Money You SpendJava said that installing a home charger is where the big savings can be made with an EV. If you rely too much on public fast charging, you can see the money you spend shoot up. Java went through some of the charging methods you can have at home, from basic level one charging from a normal plug outlet to a level two plug.She warned against buying an expensive home charger kit just for the sake of it. A level two outlet and a normal charging connector can give solid charge times without spending a crazy amount of money. One of the biggest things to consider with charging an EV is how much you pay to recharge a car, due to the varying rates of electricity in different areas.One thing Java points out is that some utility companies offer special EV charging rates. Effectively, electricity is cheaper overnight as fewer people are using it. So by setting up your car to charge at these hours, you could save quite a bit of money as time goes on. It is also worth checking your overnight electricity rates to see exactly how much you would be charged and if you are actually saving any money. Rates in California, as Java states, are much higher than in other locations, such as in the South.Don't Buy Too Much EVImage Credit: Kim Java/YouTubeAn interesting point Java makes is what people do with their money. "The biggest way people waste money and spend way too much is actually buying too much EV," she said. She is referencing those who buy the fastest, most expensive EV, with the biggest battery and the largest wheels. Yet the larger wheels can hurt an EV's efficiency, and even the most basic EVs have plenty of torque to play with. Plus, insurance prices may go up if you have all of these upgrades on your car.AdvertisementAdvertisementJava's video raised a few interesting points. It is easy to get suckered into buying an electric car and just assuming you will instantly save money. But if you take a step back and think, you realize there are ways to make the EV ownership experience even better for your bank balance. Electric cars can bring plenty of benefits; you just have to know how to use them.If you want more stories like this, follow Guessing Headlights on Yahoo so you don't miss what's coming next.