"rip" wrote in message . com...
Nope. The list of things an owner/operator is allowed to do is very
specific. Replacing, testing, or logging the replacement or testing of
an ELT battery is not on the list. (Appendix A to Part 43 -- Major
Alterations, Major Repairs, and Preventive Maintenance).

Item 24 on 43xA.vc is "Replacing and servicing batteries."