Factors that influence range
Besides cold weather, the vehicle settings can also reduce battery performance. Examples of this include constant use of the heating (on the windscreen, steering wheel or seats), ventilation and air conditioning. You can save battery capacity if you refrain from using these systems; however, consumption is sure to be much higher when the ventilation or air conditioning is switched on.
Your driving style can also have a big impact on the battery’s range. Examples of this include driving at a relatively high average speed or on long stretches of motorway where there is no speed limit, carrying a lot of additional weight, such as a trailer, or frequent braking and acceleration.