
7
5. Battery Replacement
Please read all of the WARNINGS and CAUTIONS before attempting to service the batteries. Typical
battery life is 3 to 5 years. Environmental factors do affect battery life. High temperatures, poor
utility power, and frequent, short duration discharges have a negative impact on battery life.
l WARNING! This PowerShield UPS contains potentially hazardous voltages. Do not attempt to
disassemble the UPS beyond the battery replacement procedure.
l This UPS contains no user serviceable parts. Repairs and battery replacement must be
performed by QUALIFIED SERVICE PERSONNEL ONLY.
l Caution - Do not dispose of batteries in a fire. The batteries may explode.
l Caution - Do not open or mutilate batteries. Released electrolyte is harmful to the skin and eyes.
It may be toxic.
l Caution - A battery can present a risk of electrical shock and high short-circuit current. Contact
with any part of a grounded battery can result in electrical shock. The following precautions
should be observed when working on batteries:
a) Remove watches, rings, or other metal objects.
b) Use tools with insulated handles.
c) Wear rubber gloves and boots.
d) Do not lay tools or metal parts on top of batteries.
e) Disconnect charging source and load prior to installing or servicing the battery.
f) Remove battery grounds during installation and maintenance to reduce likelihood of shock.
Remove the connection from ground if any part of the battery is determined to be
grounded.
l Caution - risk of electric shock. The battery circuit is not isolated from the input voltage.
Hazardous voltages may occur between the battery terminals and the ground. Before touching,
please verify that no voltage is present.
l Only persons adequately familiar with batteries and with the required
precautionary measures
may replace batteries and supervise operations.
Unauthorized persons must be kept well away
from the batteries.
l Caution - Replace batteries with the same number and type as originally installed in the UPS.
These batteries have pressure operated vents. These UPSs contain sealed non-spillable
maintenance-free lead acid batteries.