Low battery
You will have your pacemaker tested regularly to check the battery, either in the doctor's office or by telephone. Your doctor will decide how often you should come to the clinic based on your medical condition.

Battery replacement
The average life span of a pacemaker is typically 7-11 years. Usually only the generator is replaced. The pacemaker leads (wires) require replacement less frequently. The replacement procedure is like the original implant but usually requires a shorter recovery time.