Jump-starting a dead car battery: When jump-starting, the correct sequence is important. Low temperatures have a negative impact on the chemical processes inside the battery.
The power storage units are often subject to greater demands than usual due to additional consumers such as lights, heated seats and windshield wipers (which also tend to freeze) This is why starter batteries often fail on frosty days. If you don't have a jump starter at hand, you can alternatively try to tap into power from another vehicle using a jumper cable.