Thanks, I will look into theses. I just thought the batteries were a two year deal, and yes everything going on the plane will be new for sure.
Most of the batteries are lithium and have longer lives. The ACK-04 battery in my ELT is $170 at ACS ($34/yr.) and the Artex 345 battery is $$205 ($34/yr.).
Do some research.
Phil Nelson
A&P-IA, Maintenance Instructor
KF 5 Outback, Cont. IO-240
Flying since 2016