Full of the best.
The ideal ONE this car charging does have two ways, a fast charge a slow charge, fast charge then half an hour is full, the speed is still very fast. Although the fast charge is fast, it will lead to the imbalance of the pressure difference of the entire battery pack, thus affecting the activity of the battery, and the charging will have a part of the virtual component, which can not meet the standard working conditions of the vehicle, but the vehicle itself does not have much impact.
Not every time to be full, there are conditions can be filled every time, if there are no conditions, not full. It's the same as using a cell phone. As long as the mileage is good.