Compaq 2000 - Manual (Page 57)

Battery Maintenance 5-5
Replacing an External Battery Module
There are two options for replacing a UPS external battery module:
■ Powering off the UPS before removing the battery module
■ In certain circumstances, hot-swapping the battery module without
powering off the UPS
CAUTION: While hot-swapping batteries, there is no protection in the event of a
utility power failure.
Step 1: Preparing the UPS
To replace batteries with the UPS Off
1. Shut down all load devices.
2. Press the STANDBY button to take UPS out of Operate mode. The ON
LED extinguishes, and power to the load receptacles ceases.
3. Disconnect the UPS from utility power.
4. Wait at least 60 seconds, while the UPS internal circuitry discharges.
To replace batteries with the UPS in
Operate mode (hot-swapping)
Batteries may be replaced (hot-swapped) without powering off the UPS if both
of the following conditions are met:
■ The UPS is not charging the batteries (Battery Charge LEDs 6, 7, and 8
are all green, indicating that the batteries are fully charged).
NOTE: Older batteries may be fully charged but still incapable of providing adequate
backup for devices. Therefore, the battery charge LEDs can indicate the batteries are fully
charged, while the UPS diagnostics have determined that the batteries need to be
replaced.
■ The UPS is not supplying battery power to devices (AC Input LEDs 1
and 4 are green, indicating that the UPS is supplying utility power).