How much does each shock affect battery longevity?
The amount of battery used to deliver a shock depends on the specific ICD manufacturer and model, as well as the amount of energy your device is programmed to deliver. When longevity is estimated for ICDs, the frequency of device charging is included.
Category: Implantable DevicesWill my ICD stop working when its battery runs out?
Your ICD has replacement time indicators, such as lower battery voltages. These give your doctor plenty of time to schedule a replacement before the battery runs out. Continue regular follow-up visits so your doctor can monitor your condition and device operation.
Category: Implantable DevicesWill I be alerted when my ICD battery starts running out?
Your doctor will keep a close watch on your ICD battery life through regular follow-up visits and/or with remote monitoring systems.
Some ICDs emit an alert when the time is for a change. See our ICD sounds and alerts page for more information
Category: Implantable DevicesHow long will my ICD last?
ICD battery life varies depending on the device model, how often it delivers therapy, and how it is programmed. The typical range is 5 to 10 years, though some devices last longer, and higher therapy usage can shorten battery life.
Your device clinic monitors battery levels at every check-up and will give you plenty of notice when replacement is approaching. There is no risk of the battery running out without warning. When the time comes, replacement is a relatively minor procedure, usually simpler than the original implant, as the leads can often be reused.
For a more specific estimate based on your particular device and settings, ask your cardiologist or device nurse at your next appointment. You can also read more on our page about living with an ICD.
Category: Implantable Devices