Car Battery Keeps Going Dead
A dead car battery is frustrating but it helps to know the cause.
Car battery keeps going dead. Have a helper try to start the car. If your car exhibits one of the following telltale hints then you might be dealing with a dead battery. With the car engine off and anything that might consume electricity tur. But when your car battery keeps dying over and over again it s a pretty safe bet that there s an underlying problem that needs to be dealt with before you end up.
If you re not sure why your car battery keeps dying here are six possibilities. When your car battery dies once it may be tempting to just write it off as a fluke. There are different values of dead that a car battery can exhibit so the exact symptoms aren t the same in every situation. Assuming your battery is good and your alternator is charging the battery properly the next suspect is a short somewhere that is leaking power when you re not using the car.
Car batteries can die for a huge range of different reasons and there s always the chance that whatever went wrong won t go wrong again. Why does my car battery keep going dead. Five signs of a dead car battery. If the battery shows close to 12 volts when the car is started it should not drop below 10 5 volts while the starter is engaged.
The battery must be charged to do this test. But you won t be able to use the lights radio a c and the power windows. Without the alternator you can still drive the car and you can still probably start the vehicle once. The alternator is a crucial part of the electrical system.
The bad alternator diode can cause the circuit to charge even when the engine is shut off and you end up in the morning with a car that won t start. A dead battery cannot be tested. A car alternator recharges the battery and powers certain electrical systems like lights radio air conditioning and automatic windows. If your alternator has a bad diode your battery can drain.