What To Do If Car Battery Is Completely Dead. One of the first tricks to use when you have a dead car battery is to turn off all accessories in the car. Failure to restart indicated a prob.
If this is the case then you will have ignition problems fuse issues and wiring issues that can cause your car to be completely dead but the battery is still good. Now after few minutes have elapsed you should start the car with the flat battery. Turn on the engine Run the accessories while the engine is off and not revving Power the alternators voltage regulator.
Continue doing so for a few minutes.
Turn on the engine Run the accessories while the engine is off and not revving Power the alternators voltage regulator. Of course there is one disadvantage to using a trickle charger. Let the dead battery charge for a few minutes and then turn the ignition on the vehicle of the dead battery to see if it starts. In my years as a mechanic one thing I have learned is that an old battery or loose battery cables can cause really big problems that make it appear that something complicated is wrong with your.
