Some owners of BMW electric or plug-in hybrids experience a higher number of failed charge cycles, slower starts, or more erratic charging behavior in cold temperatures. Let's say right away that it's not a BMW charging cable problem. The safest solution is to compare charging behavior at different temperatures and not assume the problem is consistent year-round. For example, you can charge your car in your backyard in the winter, but also try charging it in a garage or covered area to check the charging status. Even a few degrees higher could make a difference and change the result. Charging sessions are usually more difficult in cold temperatures and can interrupt or take much longer than normal. A simple trick is to avoid excessively low battery charge percentages at the start of charging. For example, in cold temperatures, it's better to charge a battery that's already at 30%-40% than one that's at 5%. Low temperatures and cold weather affect both car batteries and charger efficiency. So, if you notice a drop in charging performance in the winter, know that it is normal. Then compare if the problem persists even at higher temperatures as spring approaches, but it should disappear.