@mauricepower
I assume you have only a pacemaker device and not a ICD/Pacemaker.

If you have ICD or a ICD/Pacemaker your battery life would be affected by the number of times device charges and shocks you.

If you have only a pacemaker then your battery life is going to depend on what your device is set to pace you at. If you have a low pulse rate and your pacemaker must pulse you all the time (like mine) you battery life would be shorter than someone with a pacemaker who only comes on when you pulse rates drops below a certain point.

So you can see everyone will be different in how long your pacemaker will last.

Are you asking life expectancy and having a pacemaker? Well I am on my 3rd ICD/Pacemaker and had my first one implanted in 2006. Neary 20 years ago. And I do Sprint Triathlons, water aerobics, bike, swim.

From your post we do not know your medical history. Thus having a pacemaker is a device to compensate for medical conditions. My pulse rate was in 30s. Why? Because of medication I was put on for heart failure. I had a ICD/Pacemaker implanted in 2006. My device paces me at 70 bpm and is always pacing. It prevents my heart rate from getting to low and prevent tachycardia or heart rhythm problems caused by a very low heart rate.

I also have electrical problems (LBBB) that causes a lot of PVCs. So my device keep pacing me at a steady electrical pulse.

Having a pacemaker is not a prediction of life span. It was put in to help or correct a medical issue. It is your complete medical history and genetics that will determine you life span not having a pacemaker. That device is there help.

20 years later and on my 3rd device. I just did a 20 mile bike ride this morning. I am 78 years old and exercise 6 days a week for 1-2 hours.