Why do I need to charge my battery?
There are a few reasons why your battery may discharge. Some are easier to fix than others.
1) Switching on accessories
In the example above, you accidentally left the interior lights on for too long, draining the battery’s energy to power them and leaving it with insufficient energy to start the engine.
Other accessories that drain your battery include air conditioning, headlights, radios, and USB charging ports. It is very important to limit the use of these devices so that your vehicle can restart when you turn it off. 2) Bad Generator
The generator charges the battery, so if the generator is not working properly, the battery will not charge properly while driving.
3) Old or defective battery
The battery must be able to hold a charge for a reasonable amount of time. After a few years, parts will wear out and the battery will not function properly or at all. Corrosion on the terminals and anything else that can damage the internal parts of the battery will also reduce the efficiency of the battery.
4) If the vehicle has not been used for a while
Even an intact battery will slowly discharge. So if you are not going to drive your car for a week or more, it is a good idea to charge it while it is parked to make sure the battery has a sufficient charge when you need it. Some vehicles may remain stationary longer than others.