HP T2200 - Manual (Page 33)

Maintenance 33
Maintenance
Updating the UPS firmware
To update the UPS firmware, see the HP website ( http://www.hp.com/go/rackandpower ).
CAUTION: Using a USB to serial converter cable will damage the UPS.
NOTE: Be sure to disconnect the USB communications port before beginning the firmware
update. Once the upgrade is complete, reconnect the USB communications port.
NOTE: If the firmware update process is disrupted by disconnecting the serial communications
port, restart the update.
Replacing the batteries
To replace the batteries:
1. Read and observe the requirements in "Important battery safety information" and "Battery care and
storage guidelines (on page
34 )."
2. Follow the instructions in "UPS battery replacement procedure (on page 34 )."
Important battery safety information
WARNING: The unit contains sealed lead-acid battery modules. To prevent fire or chemical
burns:
• Do not attempt to recharge batteries after removal from the unit.
• Do not disassemble, crush, or puncture the batteries.
• Do not short the external contacts of the batteries.
• Do not immerse the batteries in water.
• Do not expose to temperatures higher than 60°C (140°F).
WARNING: To prevent personal injury from hazardous energy:
• Remove watches, rings, or other metal objects.
• Use tools with insulated handles.
• Do not place tools or metal parts on top of batteries.
NOTE: Replace all battery modules at the same time.