HeartWare Ventricular Assist System Patient Manual page 28

HeartWare® Ventricular Assist System Patient Manual
During your clinic visit, your health care provider might inspect your battery and download
information from your controller to determine the number of times your battery has been charged
and discharged. The batteries are expected to have a useful operating life of 500 charge and
discharge cycles. Batteries that reach the end of their useful life should be taken out of service and
replaced.
If you rotate the use of your batteries, you should get 1 year of battery service.
Battery Buttons and Indicators (refer to Figure 11)
The Battery Capacity Display (Figure 11) on the battery is similar to the Battery Indicator on the
controller (see Section 6.2.1, "Using the Controller"), except that only green lights are used on the
battery. For example, at 25‐49% capacity, 2 green lights will be displayed on the battery while 2
yellow lights will be displayed on the controller (see chart below).
Battery Capacity
75‐100%
50‐74%
25‐49%
< 24%
Figure 11: Battery
1. Battery Capacity Display
2. Test Button
Pressing the TEST BUTTON will light up the Battery Capacity
Display.
The BATTERY CAPACITY DISPLAY will tell you how much
power remains in the battery.
Battery Capacity Display
on BATTERY
4 GREEN lights
3 GREEN lights
2 GREEN lights
1 GREEN light
Battery Indicator on CONTROLLER
4 GREEN lights
3 GREEN lights
2 YELLOW lights
1 RED light
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