IBM 1000 VA LCD Installation And Maintenance Manual page 45

Servicing of batteries must be performed or supervised by personnel who are
knowledgeable about batteries and the required precautions. Keep unauthorized
personnel away from batteries. Batteries can present a risk of electrical shock or
burn from high short-circuit current.
Determine whether the battery is inadvertently grounded. If it is inadvertently
grounded, remove the utility source from the ground. Contact with any part of a
grounded battery can result in electrical shock. The likelihood of such shock can be
reduced if such grounds are removed during installation and maintenance
(applicable to equipment and remote battery supplies that do not have a grounded
supply circuit).
Replace batteries with the same number and type of batteries as originally installed
in the uninterruptible power supply. Do not dispose of batteries in a fire. Batteries
might explode when exposed to flame.
Do not open or mutilate the batteries. Released electrolyte is harmful to the skin
and eyes and can be extremely toxic.
If the message Service Battery is displayed and the audible alarm is on
continuously, you might have to replace the battery module. Contact your
technical-support representative to order new batteries.
Important: Do not disconnect the batteries while the uninterruptible power supply
is in Battery mode. Consider all warnings, cautions, and notes before you replace
batteries. Disconnect the charging source before you connect or disconnect the
battery terminals.
To remove input power to change the battery, complete the following steps.
Note: Qualified personnel can replace internal batteries without shutting down the
uninterruptible power supply.
1. Press and hold the on/off button until the long beep ceases (approximately 3
seconds), and then disconnect the uninterruptible power supply.
2. Wait 60 seconds while the internal processor shuts down before you disconnect
the battery.
Chapter 5. Hardware maintenance information
35