why does my car battery keep dying when i don't drive it

A dead battery after a few days has been a problem on several makes of car not just my 2012 Hyundai Sonata. A dead car battery could be the result of the alternators faulty diode which is unable to convert the AC to DC.

Will Your Car Battery Die If You Don T Drive It

October 9 2012-- A friend who owns a 2013 Sonata spoke with his dealer in a.

. But faulty wiring defective fuses and improper installation of accessories can cause extreme parasitic drain which is one of the major causes of why your battery keeps dying all the time. If youre too busy during the workweek and cant get to it until youre off some short term fixes are to disconnect the battery. Up to 8 cash back If your battery is in good condition you might have an electrical leak And you may be spot on about the trunk sensor.

Some of the most common reasons for a car battery to die repeatedly include loose or corroded battery connections persistent electrical drains charging problems constantly demanding more power than the alternator can provide and even extreme weather. The average lifespan of a car battery is about 4 to 5 years. Its most likely a faulty alternator if your car stops right away.

A power drain on the battery can be caused by one of the following. Forgetting to turn off your headlights. When you drive your car the alternator helps keep your battery charged.

But over time that changes. The battery will last a about a week before needing to be recharged with enough power to start the car. If youre not already aware your cars battery normally gets recharged by the engine.

What Causes a Car Battery to Keep Dying. Some of these problems are enough to kill a battery on their own. Dirty connectionsthe number one reason the battery wont charge or turn over the engine 2.

This is the one thing thats worked AMAZING to get my car battery to keep its charge overnight in cold weather. If this is the case have a trusted mechanic check your electrical system to rule out the extreme parasitic drain. A failed diode in the alternator creates a closed circuit that drains your battery even when the engine is off.

The alternator is most. Poor State of Battery If the reason behind your battery drainage is not a human error then there are high chances that your battery is the problem. Up to 8 cash back If you do not drive your vehicle very often and when you do it is only a short drive then yes the mechanic was correct.

When a battery is that weak even your interior lights become a challenge forget about starting your car. Oops I did it again The most common cause of battery drain is human error ie. If you do not have a sealed battery remove the battery caps and top off the battery cells about 12- to one-inch from the top of the battery with distilled water.

If the battery is discharged and the cable connections are good youll want to fully charge the battery and start looking at the condition of the charging system. Even at a mild 32 degrees a battery is 35 weaker. A car battery will keep dying in short order primarily due to excessive and irreversible lead sulfation which has built up over time as a battery spends time in a state of partial or full discharge.

There are few common causes of regularly dead batteries. Many cars power their lights radio and other systems from the alternator which can make the battery drain worse if there is a charging problem. When the car is shut off and closed up it takes about 30 seconds for it to go to sleep where it shuts down all of the body systems.

A weak or poorly maintained battery is usually the main reason a battery dies. To prevent this keep a trickle charger connected to the battery when it. But it could also be many other things.

The alternator may have a loose belt or worn out that keeps it from working properly. Remove the negative cable from the battery while the engine is running. However if you park it on the street for an extended period of time and arm your ca.

If that dies youre going to have to replace it. Problems with your car battery Electrical system problems User error If you run your vehicle properly and on a regular basis keeping your car battery charged isnt something you have to think much about. People also ask How do I know if my alternator is draining my battery.

Damaged battery or old battery. The part that recharges the battery is called an alternator. A dirty battery top can leak voltage between the terminals draining the battery when not in use.

Im not a professional. Weather doesnt have to be particularly extreme to cause a cars battery to weaken. At 0 degrees it plummets to 60 weaker.

A weak or dead battery cant provide the power needed to get the engine started. If you start the car and then only drive it about five miles or less then you are not recharging the battery sufficiently. Luckily most of them can be fixed by simply replacing it.

An abnormal parasitic draw from the cars electronics can also kill a car battery. Cold weather is the number one reason why car batteries die. As you can imagine if it didnt youd need a much bigger battery to travel long distances.

And thats where problems begin. It needs a separate connection to the battery because the power sockets all go off when the ignition is off so thats a fuse and a bit of 05mm2 wire from the positive terminal through the firewall to a hidden aux socket under the dash with the negative wire earthed nearby. Its most likely a battery issue if your engine starts and keeps running but wont start again later.

A car battery dies when you are not using the car because it is not being charged by the alternator. Some have had the dead battery problem because of a bad cell in the battery faulty battery cables a bad diode in the alternator or even a problem in the cars radio. Your car battery dies for one of three general reasons.

The second cheapest component in the entire charging system next to the cables is the belt so lets look at that next. If your charging system is not working properly then your car battery can drain even while you are driving.

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