jz78817

"12 volts" doesn't necessarily mean fully charged. a "fully charged" lead-acid battery (which is what most all cars have) should be around 12.6-12.7 volts. A completely discharged battery will read about 11.6 volts. as Nuke was saying, a battery can read "good" voltage with no load but fall flat on its face when you try to make it power something like a starter. We usually call that a "dead cell." one of the six cells of the battery is weak, but active enough to contribute a few amps to things like lights and electronics. But once you try to draw a few hundred amps by starting the car, it says "NOPE NOPE NOPE NOPE NOPE" and your car does nothing.

Tommy_gun

Soaked the battery connections in baking soda and water, wire brushed the **** out of the terminals and we're good to go

Nuke

Do the cable clamps still fit? LOL!