Battery Life?

[Curt Sprenger]

The Yanmar engine (generator system) start battery is a Centennial 60
month group 26 maintenance free. It is tied in with the 6 coach
batteries. Age is 2003. I removed it today because I thought it was
way beyond time to replace it, thinking it's probable dead. After
sitting on the bench for an hour the battery tests at 13.5n volts.
Darn good. Perhaps it being tied in with the coach batteries has
extended its life due to not working hard when starting the Yanmar?

Curt Sprenger
1987 PT38 8V92 "MacAttack Racing"
Anaheim Hills, CA