You can suffer a dead car battery for a whole host of reasons. This is why flat car batteries are the number one reason for call-outs to breakdown services.
There are a number of reasons why car batteries die. A few common ones include:
What To Do When Your Car Battery Dies
The most common way to deal with a dead battery is by jump-starting it. All you need to jump-start a car is a set of jumper cables and another car (a good Samaritan) with a functional battery. Keep in mind that you should never try to jump-start a car if its battery is cracked and is visibly leaking acid.
To safely jump a start, follow these steps:
If the jump works and your car starts, don't shut off your engine! Drive around for at least 15 minutes to recharge your battery. If the car won't start the next time you use it, the battery isn't holding a charge and needs to be replaced.
Alex Todd Brand Manager at Its4women commented "If your vehicle will not be used for an extended period of time, it's wise to invest in a battery charger so you're prepared if and when you need a charge."