What happens if I unhook the battery while the car is running?
Here’s the rub: the alternator’s regulator can only react so fast to a massive step change in load, such as when you unhook the battery while the car is running. (Especially if it’s a flat battery — if you are going to unhook the battery on a running car, make sure it’s fully charged first!)
Why do my house batteries not charge when I run the engine?
They will read very low if no charging voltage is present. The house batteries (as well as chassis batteries) should charge when the engine is running, if not then you should find a fuse in a positive 12 volt feed between them and the alternator.
What does it mean when Battery Light comes on while car is running?
When you first turn on your car with the engine off, the battery light will illuminate and this is normal. If the battery light comes on while the engine is running and the vehicle is being driven, this indicates a problem with the charging system. Step 1: Turn off everything that draws power.
Why does my Mercedes not start when I charge the battery?
This Mercedes-Benz is not starting because of a low battery. In this case, what you need to do is trickle charge your battery using any of these 12 volt battery trickle chargers. If you need help read this article on How to charge a Mercedes-Benz the right way. Mercedes won’t start, and it’s not the battery.
Where is the fuse on an outboard engine?
If everything else is dead too, check the outboard’s main fuse. Typically located in a large red holder on the engine wiring harness, it’s usually a 20-amp fuse. If the fuse is OK, check the main power plug that connects the engine to the boat.
This Mercedes-Benz is not starting because of a low battery. In this case, what you need to do is trickle charge your battery using any of these 12 volt battery trickle chargers. If you need help read this article on How to charge a Mercedes-Benz the right way. Mercedes won’t start, and it’s not the battery.
Why does my outboard not start when I turn the key?
Starter Solenoid: If you hear a clicking sound or a low whine but the starter won’t engage the flywheel when you turn the key, the starter solenoid may be the culprit. Tap lightly on it with a small hammer as a helper turns the key.
What does it mean when your car won’t start?
If the battery does not pass a load test, then this means the battery needs to be charged. If it can gain a charge from another battery and the vehicle can start after getting a jump, you have fixed it. However, if it doesn’t start, a damaged fuse might be the problem, a broken ignition switch, or a bad starter.