GCM Battery Replacement
iSTAR Ultra Installation and Configuration Guide 8–7
GCM Battery Replacement
The GCM coin cell battery should be tested annually and replaced as necessary.
The battery is a CR2032 Lithium 230 mA/h coin cell.
The battery retains power for the Real Time Clock for at least 3 weeks. After three weeks
of accumulated power outage, the battery should be replaced.
The battery should last 5 years if there’s no power outages.
To Remove and Replace the Battery
1. With a small screwdriver, gently pry the battery up at point A.
2. At the same time, use your thumb to push the black tab back B.
3. Gently slide the battery to the left and out.
4. To replace, slide the battery in from the left, under the black tab and under the metal
spring C.
Figure 8-2: GCM Lithium Battery Replacement
Caution - Do not bend or break the metal spring C. The spring is important to the operation of
the battery.
A
B
C
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