Originally Posted by mashford
Hook up the positive on the post under the hood and negative on the ground post a foot under that. Make sure its a charger that kicks off when fully charged. the cheap trickle chargers do not do that.
That’s how I have it hooked up. It is a two bank “battery tender” brand that I have hooked up to an antique car on the other side and is charging just fine. Have switched the cables so I know that’s not it. Bad ground?