A buddy of mine has dual batteries on his boat. Both Batteies are about 6 years old, but he keeps a charge on the batteries year round. The other day he asked me to bring my battery tester over and tested both battery. I put a 10 second load on them and the battery tested great. Do you think he might need to buy new batteries with them being so old?
Thx
Whyme
I'm no expert but that's pretty old for a battery.
I would say it would depend on what kind of boat, where he goes and would he be able to get back if a battery goes.