1992 Sl Charging problems

92 SL DOHC New Alternator, New Battery, New Catalytic Converter, Car will run when you jump it, but will die after about 20-minutes of running. Battery completely Dead ! :banghead:

Welcome to AF.
Did you have a specific question or are you just venting?

Check the fusable link.

At idle you should have 14.4v. If you don't your new alternator is not working or not connected right