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.
∧ WARNING! This UPS contains potentially hazardous voltages. Do not attempt to
disassemble the UPS beyond the battery replacement procedure.
∧ This UPS contains no user serviceable parts. Repairs and battery replacement must
be performed by QUALIFIED SERVICE PERSONNEL ONLY.
∧ Caution - Do not dispose of batteries in a fire. The batteries may explode.
∧ Caution - Do not open or mutilate batteries. Released electrolyte is harmful to the
skin and eyes. It may be toxic.
∧ 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 maintaining 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.
∧ 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.
∧ Please replace the fuse or circuit breaker only with the same type and amperage in
order to avoid fire hazards.
∧ Only persons are 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.
∧ 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.
NOTE: If there is a power interruption while replacing the batteries, the load will not
be backed up even though the UPS is still on. To replace the batteries with UPS on,
please start with step 5.
7
