I hate rebuilding the battery box every few years. It's getting
pretty thin!! So I love the RG batteries.

I'm getting about 30 months too.

Check your bus voltage. If it's too high, the battery will
take it in the shorts.

Bill Hale BPPP instructor


On Mar 10, 11:46*am, Dave Anderer wrote:
Any current thoughts on AGM batteries?

I tried a Concorde 35AXC about 8 years ago. *It lasted about 30 months
for me. *Wet batteries seem to last around 4 years.

However, there was some corrosion damage from the wet battery last
annual, and so I'm rethinking the AGM option. *I might be willing to
trade some battery lifetime to avoid potential airframe issues.

Anyone have a preference on Concorde vs. Gill?

tia