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5. To put the fuse cap back in, line up the tab on the fuse cap with the notch on the
UPS. Use the screwdriver to push the cap in and turn it to the right (clockwise).
6. To test the UPS, plug it into the wall outlet. Press the key on the front panel
to restart the UPS. Then, switch on the equipment plugged into your UPS.
Battery backup time may be low until the UPS recharges its batteries. If the
UPS does not restart, follow the proper Customer Process for Service in
, IBM Service Support.
7D. Replacing the Batteries
Fortress’ batteries are user-replaceable and hot-swappable. This means that you can safely
and easily replace the batteries while the UPS is running. All you’ll need is a standard
screwdriver or a 1/4-inch nutdriver. Before you replace the batteries, make sure that you
read the safety information below.
Note: If you have a power outage while you are replacing the batteries, the UPS will not
be able to run on battery power, and your protected equipment will shut down.
CAUTION
1. The batteries used in the UPS and battery pack(s) can produce dangerous voltage
and high current. Therefore, the batteries may cause severe injury if their terminals
contact a tool or the UPS cabinet. Be very careful to avoid electrical shock and
burns from contacting terminals while you replace the batteries.
2. Batteries contain caustic acids and toxic materials and can rupture or leak if mis-
treated. Remove rings and metal wristwatches or other jewelry. Do not carry metal
objects in your pockets; these objects could fall into the UPS.
3. Never allow any tool to contact both a battery terminal and the UPS cabinet or anoth-
er battery terminal. Do not lay tools or metal parts on top of batteries.
4. To ensure continued superior performance of your UPS and to maintain proper
charger operation, you must replace the UPS batteries with the same number and
type of batteries. These batteries must be the same type as the original batteries:
valve-regulated, low-maintenance. The replacement batteries should have the same
voltage and ampere-hour rating as the original batteries.
5. Assume that old batteries are fully charged. Use the same precautions you would
use when handling a new battery. Do not short battery terminals with a cable or
tool! Batteries contain lead. Many areas have regulations about disposing of used
batteries. Please dispose of old batteries properly. For help, please call the nearest
Best Power office. DO NOT dispose of batteries in a fire because the batteries
could explode. Do not open or mutilate batteries. Released electrolyte is harmful to
the skin and eyes. It may be toxic.
