While driving your car, the car battery can’t die because the alternator keeps charging it. Regulates voltage- Sometimes, when specific systems in your car get overworked, they produce power surges which can cause damage to your car and other electronics. Your car battery is vital as it helps prevent these power surges from happening.
Keep your car in the shade on hot days. Reduce the time your car's exposed to low temperatures, especially when charging. Don't keep your battery at extreme ends of the charging scale - somewhere between 25% and 75% is ideal. Unless you really need to, avoid using fast chargers. Try not to use your battery's charge more quickly than you need to.
If your car's battery isn't connected properly, either because the connection is loose or it’s been corroded, then you might struggle to start your car. Loose connections can limit your battery’s ability to transfer power, meaning your engine may not be able to turn over.
The battery supplies a surge of power when a car starts. Once your car is on the road, the alternator recharges the battery to make up for the power used to start the car and keep it running. So, when you take a short trip, the alternator may not get enough time to recharge the battery again.
But when you’re not, the battery isn’t recharged hence the power drained by other systems in the car. If your car sits unused for an extended period, your battery could take a hard hit. For example, if your battery is older than three years, it could ultimately result in you buying a new battery.
If your electric car’s battery isn’t charged, the problem could be a damaged charger. A common reason for the damage is if you run over untethered charger cables the connector plugs on the floor. Careless handling, overuse or dropping the charger can also be responsible for impairing your EV charger. 1. Don’t overcharge it