18 Section 4 • UPS Care and Battery Replacement
CAUTION
When the UPS is on line, all three green Battery Charge LEDs (6, 7, 8) should be lit before replacing
(hot-swapping) the batteries. DO NOT DISCONNECT the batteries while the UPS is on battery power or
while the UPS is charging the batteries.
If you choose to unplug the UPS to change the battery: 1) Press the OFF button and remove input
power; 2) Wait 60 seconds while the internal microprocessor shuts down before you disconnect the
battery.
CAUTION
The UPS and its batteries are heavy. If your unit is installed in a rack, you must support the front of the unit
while replacing the batteries.
How to Replace Batteries
Figure 6 shows how to replace your UPS batteries. Consider all
warnings, cautions, and notes before replacing batteries.
Summary of Contents for ACE Series
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