7 doctors weighed in:

How are batteries chosen to be put in pacemakers?

7 doctors weighed in
Dr. William Scott
Pediatrics - Cardiology
5 doctors agree

In brief: Manufacture specific

The companies that manufacture pacemakers design their own batteries to optimize the longevity of the device.
The batteries are not replaced when depleted; the entire pacemaker is replaced.

In brief: Manufacture specific

The companies that manufacture pacemakers design their own batteries to optimize the longevity of the device.
The batteries are not replaced when depleted; the entire pacemaker is replaced.
Dr. William Scott
Dr. William Scott
Thank
Dr. John Garner
Internal Medicine - Cardiology

In brief: They're not

We're not picking duracell vs energizer here.
These things were all lithium iodide cells until very recently because of its ideal characteristics (no off-gassing, stable discharge, heat stable, and extraordinary energy density). Icds need a different chemistry with lower internal resistance, and both devices now have hybrid battery techs. Batts aren't replaceable without changing the whole pm.

In brief: They're not

We're not picking duracell vs energizer here.
These things were all lithium iodide cells until very recently because of its ideal characteristics (no off-gassing, stable discharge, heat stable, and extraordinary energy density). Icds need a different chemistry with lower internal resistance, and both devices now have hybrid battery techs. Batts aren't replaceable without changing the whole pm.
Dr. John Garner
Dr. John Garner
Thank
Read more answers from doctors