Hello all, this is my first post......and not the last I am attempting to build a little camper van. I have a plan for having a second battery that would be charged off the alternator. Welp, my alternator just quit. So, having my plan in mind I want to get a higher output one but can't find one. Any suggestions?

 

You would be better off installing a DC to DC charger, eg Redarc or Enerdrive.