Things such as interior lights that do not turn off, radio station presets, the clock, engine computers and body-control modules all drain a car's battery even when the car is off. Other items like proximity keys, aftermarket stereos and amps and alarm systems can also draw excess voltage that drains the car's battery.Know More
The cause of a drained battery can be because something is using more battery power than it should, such as an electrical malfunction that keeps the glove box light on all the time. Other things, such as leaving the car off but listening to the radio in the car or using the overhead interior lights when the car is turned off, can cause the battery to drain quickly.
If the battery is draining, and it is not due to user error, such as forgetting to turn the headlights off after parking in the evening, the fuses should be tested with a multimeter to see exactly where the battery drain is coming from so that it can be fixed by a professional. When testing the fuses, the battery must be fully charged, the car doors must be shut and any charging cables must be unplugged from the lighter.Learn more in Car Parts & Maintenance
To recharge a car battery, clean the battery terminals, and connect a trickle charger to the terminals. Turn on the trickle charger, and allow the battery to charge overnight. Check that the battery is charged by turning on the vehicle.Full Answer >
A battery size chart is used to determine the correct battery to use for a specific car. Because automobile batteries are manufactured in a number of sizes, the battery's capacity must be matched to the make and model of an automobile. A battery size chart lists auto makers and the vehicles that are manufactured by each of their companies.Full Answer >
One of the most common reasons why automotive batteries explode is when the hydrogen gas that is produced during the charging cycle builds up inside the case and is ignited by a spark or a flame. Exploding car batteries send sulfuric acid and fragments of the battery case flying everywhere and these can cause injuries to anyone in the vicinity.Full Answer >
When a car battery is overcharged, the most common effect is the battery rapidly dying, however, a battery that swells and becomes hot to the touch is also a direct result of overcharging. When the battery swells, sulfuric acid can leak from the battery. This is potentially harmful when it comes in contact with the skin and should be avoided if at all possible and if not, needs to be washed off the skin immediately.Full Answer >