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There might be some electrical component that is slowly draining the battery. Here is a simple way to narrow it down. This is best done at night. Remove the positive battery cable from the battery (with everything turned off, even the dome light). Gently touch the battery cable to the battery terminal. If there is anything draining current you will see a little spark. To narrow down the source, repeat this test after removing one fuse at a time. When the spark stops, note the number of the fuse removed, and which accessories are fed by this fuse. While you have the terminal off, it's a good idea to clean both the battery terminals and cable ends with a wire brush. If you do not have a slow drain on the battery, here are some other possible causes: your alternator is not charging the battery, often the problem is the voltage regulator (mounted to the back of the alternator). The voltage regulator is a good place to start as it costs only $20, an alternator is closer to $200. More likely, if you still have the original battery, it is 7 years old which is about max life on a car battery. If this morning starting problem has been getting worse slowly over time, it is most likely the battery. They are at their weakest in the morning when the battery and motor are both cold, so the battery has less power, and a cold motor is much harder to crank over than a warm motor.
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Why does battery drain while driving Volvo 940?
Alternator is defective or battery has a dead cell.
How do you open a trunk when battery is dead Volvo s 80?
You'll have to use the key.
Why does Volvo c70 battery keep dying?
Dead cell in the battery or some light non vehicle is on. Can also be a stuck relay.
The battery went dead in my Volvo 850 and now the radio won't work how do you fix this?
need to get the security code from a licensed Volvo repair. code is by VIN.
Why is battery going dead in your lawn tractor?
Either the battery has a dead cell, which will require you to replace it, or something is on pulling power from the battery. Disconnect the negative cable and leave it off overnight. If the battery is dead the next morning the battery is defective. If not, then find out what is pulling power from the battery. Ignition switch may be defective.
Why wont my battery stay charged on a 1996 crownvictoria?
Dead cell in battery or something is on pulling power from the battery. Disconnect the negative battery cable overnight with the battery fully charged (12.6 volts). If the battery is dead the next morning it has a dead cell and needs replacing. If however the battery is still fully charged then a light is on somewhere or a relay is stuck closed.
Electric problems with Volvo 740s?
Could you be more specific? Is the battery dead, will the engine not turn over, are the headlights not working, etc.?
What could be wrong if the battery is good and the alternator is good but the battery keeps being drained?
Something is causing a drain on the battery even with the vehicle off and nothing turned on. A good mechanic can do a drain test on the battery to see what may be draining the charge. A dead cell in the battery itself will also cause the battery to go dead. Disconnect the negative battery cable overnight and if the battery is dead the next morning it has a dead cell and must be replaced. If not look for a light that is on or a relay that is stuck.
When you turn off a computer at night it loses the date and you must reenter it each morning what is the problem and how do you solve it?
<improved answer>Just to correct the old answer, if the CMOS battery is dead, then the computer will not turn on in order for you to reenter it the next morning. It means that the CMOS battery is getting weak, and yeah, you could replace it. <old answer>It is most likely that the CMOS battery is dead. Replace it.
What keeps draining your car battery?
Either the battery has a dead cell, which will normally drain it overnight, or something is on pulling power from the battery. If the battery has a dead cell it will have to be replaced. The easiest way to determine this is to fully charge the battery and then disconnect the negative cable overnight. If the battery is dead in the morning it has a dead cell. You may not even be able to charge it with a dead cell. If the battery is still fully charged the next morning then you have another problem. Check all the lights on the vehicle. Under hood, trunk, dome, curtorsey, glove box, etc. One of them may be staying on. Also check your brake lights. If you find no lights are on then you may have a relay that is sticking. Can be power windows, locks, seat, etc.
How Do I Troubleshoot a 1986 Cad Deville Parasitic Battery Drain?
It can be a dead cell in the battery causing the drain. Disconnect the negative battery cable overnight. If the battery is dead the next morning it has a dead cell and needs replacing. It can also be any light that is staying on overnight. Under hood, trunk, glove box, dome light, etc. It can also be a relay that is stuck.
If you have to jump start your battery every time you cut your car off what is wrong with it?
Dead battery, Alternator not charging, Ignition off draw draining battery,.............
