Dead cell in the battery or something is on pulling power from the battery overnight.
Can be a dead cell in the battery which will fully discharge the battery over night. The battery must be replaced. Of course any battery will loose it's charge over a few months of storage.
Bettery going dai over night. Dead cell in the battery or something is on pulling power from the battery.
Something is on, as in headlights or ignition, or the battery has a dead cell. If the battery is over 2 years old it is more than likely the battery itself that is the problem. Disconnect the battery positive cable and fully charge the battery. Let it sit overnight and if it goes dead, replace the battery. If not, find out what is running it down.
No, a bad ground will not drain the battery. A dead cell in the battery will most certainly drain it. If it has a dead cell it must be replaced. Also any light that is on will drain it. Lastly a stuck relay will run it down.
A charging voltage of 14.3 volts for a typical lead-acid 12 volt battery is reasonable. The "normal" voltage is 13.8, but anything in a range of 13.5 to 14.5 is OK, depending on temperature. If the battery is going dead over night after having been charged, the either the battery is bad or there is some load on the battery. To check for load, place an ammeter in series with one of the leads. There should be no or little current flow.
This is caused by one of two reasons. Either the battery has a dead cell and needs replacing or there is a parasitic drain on the battery. The drain can be any light that is constantly on or a relay that is stuck.
If you leave the lights on the battery goes down or anything else that uses the battery over night. But if that's not it, the battery is worn out and you need to buy a new one.
If your car doesn't start, or when you turn the key it makes a weird noise. Lights dim, slow to turn over,
your engine wont turn over but it makes a clicking noise or if you turn the key to the notch before the one that turn on your car then turn on your radio and if it doesn't turn on you have a dead battery.
If the battery will not hold a charge it more than likely has a dead cell. If the battery is over 4 years old, replace it.
Fully charge your battery then take off cables. If still charged after sitting unhooked overnight, then you have a short somewhere and need to take to an electrician. If the battery is dead after sitting unhooked, buy a new battery.
The answer is obvious. The battery is dead and will not turn the engine over.