ET1BOOKER

battery discharges as soon as I connect it in car. battery will not charge while connected in car

Oldblue

Have the battery load tested , seems the be a dead cell , or problems up stream in the primary electrical circuits

donbrew

Does it short out or discharge?
Short out means you have a positive wire going directly to ground, probably with sparks and heat.

Discharge means something is drawing all the available charge from the battery.

Had anyone been messing with the car just before this problem manifested? Either bad battery or a wire connected to something wrong, like chafed insulation.