car battery keeps dying after sitting

Unhook the negative side of the battery. The first thing to check on a battery that wont start the car is the battery charge.

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It doesnt matter how much juice your alternator is pumping into your battery if it cant hold a charge.

. Car battery keeps dying after a few days Probably the most common symptom for a cars battery running down is when the car will not start after sitting for a day or two. There are a few reasons that your car battery could keep dying even if your alternator is good. Freezing cold winters and the boiling heat of summer can cause problems with your cars battery.

The way to check this is to get a 12 v test light. A not using your phone as much b not charging your phone properly c not updating to the latest version of Android. A mechanic would use an ammeter to probe various circuits to isolate the problem.

A badly wired radio a faulty relay or a phone charger left plugged in could all be drawing power from the battery while the car is sitting. The lead terminals will corrode over time and form barriers of dirt and corrosive crystals. So if it seems like the battery is dying with the engine running.

If you notice that your battery. AutoZone Has You Covered at Americas 1 Battery Destination. Db4690 December 8 2019 655am 15 Assuming the problem is due to a parasitic draw.

The main reasons for a car battery dead after sitting are electrical system malfunction and parasitic draining. Free Curbside Pickup Available When You Shop Online. Something is amiss there.

I cannot figure out exactly why the battery keeps going dead. There are many causes for this some of which include the following. Hook the test light up between the negative battery post and the battery cable.

Car battery discharge solution. But sometimes even a new battery can succumb to extreme temperature changes. Have Your Battery Tested at No Cost.

Ad Earn 1000 FordPass Rewards Points with a Motorcraft Tested Tough PLUS Battery Purchase. It should be about 126 volts. October 9 2012-- A friend who owns a 2013 Sonata spoke with his dealer in a different state and city.

Car battery keeps dying Myguess is that you have an electrical short which is causing a drain on the battery. New batteries are more resistant to extreme temperatures. This means that over time the car will have trouble.

Battery discharge is a common problem that we all face. 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. The battery is two years old the charging system is putting out a healthy 142v the all systems standby draw is only 42-74mA it sits around 42ish and will jump up to the 60s- low 70s and fall down to the 40s again.

You also might have something that is drawing power after you shut off the engine. Get the Battery You Need Today. Ad Need a New Battery.

It could be the voltage meter reading is inaccurate. A dead battery after a few days has been a problem on several makes of car not just my 2012 Hyundai Sonata. As a temporary measure you could install a battery kill switch but such a switch will disable your alarm and may cause loss of stored data in the PCM.

A car battery that dies after sitting for a few days will either need replacing due to age or be suffering from a parasitic drain. The most common reason for a battery running down is that it needs charging. This is the one thing thats worked AMAZING to get my car battery to keep its charge overnight in cold weather.

Im not a professional. If it seems like your battery keeps dying while youre actually driving your car the root problem probably isnt the battery. What causes battery to drain in car.

Suggest to ask your shop to figure this out. Even when the car is not running and the engine is off power gets drained from the battery by the various electrical systems. The purpose of a car battery is to power the starter motor and to provide electricity to run accessories like lights and your radio when the engine is off.

The most common explanation is that you have a bad battery. If the alternator is bad it will simply not produce the electricity. The 6 most common reasons your car battery keeps dying include.

The battery terminals have to survive in a harsh environment with exposure to acid heat and fumes. The alternator and voltage regulator are responsible for charging your battery up immediately after your car battery releases a massive spike in amps to start your car. Up to 8 cash back You may have excess current being drawn somewhere in a circuit while the car is not running.

Once the engine is running the charging system takes over. Bad Alternator Voltage Regulator. If the light comes on You have a.

This will either weaken the overall performance or cause it to die completely. 14 volts is an unusually high battery voltage reading before the first start of the day. When a system is not working properly it can draw more battery power than necessary.

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