Is it safe to pair up a AGM with a lead acid in parallel as long as the amps are the same ? Is it a good idea to have one in the trunk (in a battery box of course) connected with the main battery and grounded in the trunk ? I also have a battery isolator I can work with .I had agm's in my diesel pickup. Redtops, to be exact. Two red tops would run over $600 now.
I went to Sam's and compared their agm against their lead/acid. Agm had no more power, and no better warrantee, for about $60 more each.
So I got two lead acid. $260. If they last half as long as the red tops, I figure I'm WAY ahead. (Had a bad battery couple months. Bought five total)
My opel has world-class terrible battery access,...and a redtop
When this one goes bad, it gets another.