 Now, unlike gasoline vehicles, which fill at about the same rate until the fuel nozzle's automatic shutoff valve clicks, EVs don't charge at a uniform rate. Generally speaking, an EV can take the same amount of time or even more to top off from 80% to 100% as it does to get to 80%. You got that? The same amount of time to get that extra 20% as it takes to get to 80%.