[bestgenman]

I've sold many Interstate batteries in the last 20 years so I thought I would try their 8D AGM deep cycle after my 7 year old Lifelines started failing.  They were about $560 ea. and lasted 20 months.  Needless to say, I'm not very happy.  I imagine Interstate sources these from an outside vendor.   Their flooded lead acid product still seems pretty dependable.

Going back to Lifelines.