usually a stuck horn is caused by a bad horn relay.sometimes it is the horn switch itself sticking.even rarer is a faulty horn that becomes stuck. try the relay.
If you disconnect without turning off the charger, the sparks caused may ignite the hydrogen discharged from the battery while charging.
It does no harm to disconnect the battery when working on a vehicle but in general no, you do not need to disconnect them to change a filter.
Disconnect the negative cable.
With a 12 volt battery charger. Red + connected to + post on battery. Black - connected to any metal part of the vehicle. You do not have to remove the battery from the vehicle.
Disconnect + cable on your battery , go inside vehicle , sit in drivers seat , apply pressure to brake pedal for 5 seconds as if you were making a stop . Reconnect Battery , should be clear .
Negative.
If you are talking about disconnecting a battery in a vehicle, yes.
Disconnect the car battery, and reconnect it
Yes. A battery can be charged while in the vehicle.
The battery cable that is grounded, is connected to the body of the vehicle. Sometimes it is the negative cable & sometimes it is the positive. You need to check which cable is connected to the body of the vehicle.
a small mig works best for most body work on any vehicle. DISCONNECT BATTERY FIRST! sending power through the chassis can fry the computer if the battery is connected.
Disconnecting Auto Battery Terminal ConnectorsYes, it is safe to disconnect a "car" battery while it's raining, IF you do it properly.When disconnecting a vehicle battery, raining or not, ALWAYS disconnect the NEGATIVE [--] terminal first, and when reconnecting, always connect the NEGATIVE terminal last.