Disconnecting Power Sources; Changing Power Sources; Using Battery Power - HeartWare Ventricular Assist System Patient Manual

6.3.2 Disconnecting Power Sources
1. Turn the connector counterclockwise until it stops.
2. Pull the connector straight out from the controller.
3. If another power source is not connected within 20 seconds, the "Power Disconnect"
message will be displayed on the Controller Display and an alarm will sound.
NOTE: The alarm will automatically clear when another power source is connected to
the controller.
6.3.3 Changing Power Sources
Changing from two batteries to a battery and AC/DC adapter:
1. Plug the AC adapter into a grounded electrical outlet or the DC adapter into a power port
found in most cars.
2. Disconnect the battery with the least remaining charge.
3. Connect AC or DC adapter per Section 6 .3.1, "Connecting Power Sources".
Proper connection is verified when the AC/DC Indicator on the controller turns green and the
corresponding Battery Indicator turns off. If the AC/DC Indicator doesn't turn green, the controller is
using battery power and the "Power Disconnect" alarm will sound.
WARNING! DO NOT plug the AC adapter into an electrical outlet that is not properly
grounded or you may receive a serious electrical shock.
CAUTION: ALWAYS check to be sure the DC adapter works in your motor vehicle. The
DC adapter is for use in motor vehicles only and may not fit all motor vehicles.
CAUTION: Use only HeartWare‐supplied power adapters with the HeartWare®
System.
Changing from an AC/DC adapter and battery to two batteries:
Before switching from AC or DC power to battery power, make sure that a fully charged battery is
available. Connect the fully charged battery after disconnecting the AC or DC adapter.
6.3.4 Using Battery Power
Each fully charged battery provides approximately 4 to 6 hours of use for normal activities such as
reading or watching TV. The battery may last for less time as your activity level increases. However,
if any battery provides less than 2 hours of support, it should be replaced.
Similar to the battery in a cell phone (or mobile phone), the HeartWare® Batteries lose charge over
time. If a fully charged battery lasts less than 2 hours, take it out of service and replace it with a new
one.
HeartWare® Ventricular Assist System Patient Manual
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