@jer22
The 6 months I mentioned on battery life is when your battery life hits the 6 month prediction of battery life Mayo Jacksonville schedules you for pacemaker replacement surgery.

6 months left (prediction) is the protocol when they will schedule your new repalcement surgery NOT the battery life (which like you stated is normally 8-10 years) of your packemaker when implanted.

Mine (excecpt for 1st that had a battery issues and replaced early). I am on my 3rd one. My battery life now is predicted as 5 more years and exactly the 8 year mark I was given initially. I think the battery life is influenced by how many shocks you get and how your heart is paced. Is it paced all the time or just when it gets low.

I would have a very low pulse rate (low 50s). My heart is continuously paced at 70 to help with reducing PVCs which are much worse with lower pulse rate.