Discussion Starter · #1 ·
We built our Ford Transit van in October of 2020 and purchased TWO Renogy Lithium-Iron Phosphate Batteries (12 volt/170Ah) for which we paid $3,000. We have put about 30,000 miles on the van taking around 6 road trips across country. We have not turned the batteries off when parked and so they usually stay charged at 100% in California. The batteries are now dead (will not charge above 20%)! This is after just 2.5 years. Is this normal? Naturally the "warranty" has expired. So, if this is normal life for these expensive batteries, then replacement will be equal to $1200 per year which seems insane. Is there a better option in batteries and did we do something wrong? The only thing running when not in use is the ICECO fridge. Should we have been turning them off when not in use? Appreciate any advice.