Why Is My Car Battery Draining?

Even if the car battery is in good condition, it can die for a number of reasons. One of the most prevalent causes is keeping electrical accessories on after the engine is turned off. In case they are not turned off, the interior lights, headlights, or even the infotainment system will drain the battery slowly. Another reason why cars get a dead battery is due to short trips. During short trips, the alternator doesn't have sufficient time to recharge the battery once the engine is started.

Some other reasons why batteries are discharged are:

• Batteries that have become old and cannot retain a charge anymore.

• Corroded or loose battery terminals.

• Bad alternators that don’t recharge the battery adequately.

• Worn-out charging system parts or broken wires.

A systematic investigation must be made to see whether the problem is the battery or some other part of the electrical system.

Battery Draining: Hidden Electrical Problems

Not all battery drain is instantaneous. Some cars may have a parasitic drain in which specific electrical components continue to draw power even after the ignition is turned off. Normally, there should be some standby current to power items such as clocks and security modules. However, too much standby current will result in the discharge of the battery overnight or after a few days of parking the car.

This problem usually does not present itself visually and requires the use of diagnostic tools to identify current flow in order to determine which circuit is faulty.

Professional service providers such as Ride N Revive use modern diagnostics to determine any hidden electrical problems and charging system problems in cars.

Symptoms of a battery or charging system problem

Usually, battery-related problems take time to develop before complete failure. It is helpful to know the early warning indicators to avoid unanticipated starting troubles.

Common indicators include:

• The engine turns over slowly when starting.

• Dashboard battery warning light stays on

• Flashing or dimming of headlights.

• There is an erratic functioning of electrical components.

• Need to be jump-started often.

• Battery terminals may be corroded or loose.

Do not disregard these symptoms, since they could be a sign that there is a problem with the battery, alternator, voltage regulator or related electrical parts.

Prevent Future Battery Drain

Preventive maintenance is the best strategy to minimize the chances of battery-related problems. It is recommended that vehicle owners turn off lights and accessories before exiting the vehicle and not leave the car unused for long periods of time without starting it.

Routine check of battery terminals, charging voltage and electrical connections can assist in spotting growing problems before they cause battery failure.

Following the manufacturer’s recommended service plan and having the charging system checked during periodic maintenance will greatly improve the reliability of your battery and the overall performance of your electrical system.

Conclusion

Dead batteries are not usually the cause of a car battery drain. Faulty charging systems, parasitic electrical loads, corroded connections and driving behaviours can all cause recurrent battery drain. Regular maintenance and diagnostics are an important part of keeping your electrical system healthy. With the testing and maintenance provided by Ride N Revive, car owners will be able to identify the faults in their battery.