Certain cardiac devices, including cardiac resynchronization therapy devices (CRT-Ps and CRT-Ds) and left ventricular assist devices (LVADs) are powered by battery. Batteries for these types of devices are specially designed to last a long time—usually three to six years, depending on the device you have and what it does.
When your CRT device’s battery begins to run low, it will give plenty of warning. Your doctor will be able to detect that the battery is running low during follow-ups with your remote system or in your doctor’s office. When this happens, your doctor will likely recommend that you replace your current device.
A new device is necessary for CRT-P or CRT-D battery replacement because batteries are not rechargeable or removable from these devices. Learn more about getting a replacement device.
LVAD devices come with both a power unit and batteries. The power unit can be plugged into an electrical socket to provide power while you are indoors, at rest or asleep. The batteries are rechargeable and can be used when you are away from home or a power source.
Many patients charge their batteries overnight and re-insert them in the morning before they go to work or participate in their daily activities. The batteries are light and long-lasting, offering many hours of uninterrupted support.
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