MILPOWER SOURCE
110BA1UM, REV(B)
11
6.3
Battery Test
Battery Test may be invoked only if the UPS runs on AC input power, the Battery Charge level is
above 85%, the load is above 35% and the battery is not engaged in supporting Input Power Limit.
If Battery Test is denied due to low charge level, the Charge Level Bar Graph blinks once when the
Battery Test Push-button is pressed.
To test the battery, press momentarily on the Battery Test Push-button (21). The green Battery Test
Passed LED (20) will blink for about 3 seconds (indicating that Battery Test is running). After about
3 seconds, either the red Battery Test Failed LED (22) will turn on (and latch), indicating a bad
battery, or the green Battery Test Passed LED (20) will turn on for about 20 seconds, indicating that
battery successfully passed the test.
The Battery Test may be repeated only after at least 20 seconds have elapsed since the last test.
7.
Taking Care of the Battery
7.1
Battery Service Life
The gel lead-acid, sealed and maintenance-free battery used in the M110BA-1 is of the highest
quality. Nevertheless, it is a Limited Life Item, and its life expectancy depends upon its operating
and storage conditions.
The three most important factors that determine the life of the battery are:
Temperature
Storage Conditions
Charge-Discharge Cycles
Temperature
The battery used in the M110BA-1 is sealed and does not “dry up” or lose gasses, but its end of
service life is brought about by the gradual corrosion of the electrodes. This process is
accelerated by high operating temperatures. Every 10°C rise above 20°C will reduce the battery
service life by half.
Storage Conditions
When lead-acid batteries are stored for extended periods of time, lead sulfate is formed on the
negative plates and insulates them.
The sulfating rate depends on the ambient temperature and the charge level of the battery. High
temperature and low charge level accelerate the sulfating and reduce the battery life.
In order to protect your battery from damage during storage:
•
Make sure the battery is fully charged periodically (every 4 months if the temperature is
approximately 24°C, and every two months if the temperature is higher than 37°C) by operating
the UPS for at least four hours.
•
Store the batteries in a cool place (may be stored separately from the UPS).
•
Never store a discharged battery !!!
