Battery Module Replacement - HP 1U User Manual

5. Maintenance

5.3 Battery module replacement

Safety recommendations
Warning: To prevent personal injury from hazardous energy:
• This operation must be performed when the UPS is switched off and unplugged from the AC source.
• Do not disconnect the connector while the unit is operating from the AC mains or in reserve mode.
• The battery connection must not be disconnected while running in reserve mode.
• The battery can cause electrocution and high short-circuit currents. The following safety precautions
are required before servicing the battery components:
• Remove watches, rings, or other metal objects.
• Use tools with insulated handles.
• Do not place tools or metal parts on top of batteries.
Replacing the batteries
• Read and observe the requirements in "Important battery safety information" and "Battery care and
storage guidelines" in this section before battery module replacement.
• Follow the instructions in this section to replace the battery module.
Note: Replace all battery modules at the same time.
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).
Battery care and storage guidelines
Caution: Because of the short shelf life of the batteries, avoid storing a battery spare as a
backup. Do not maintain an inventory of spare batteries on site unless a procedure to keep
these batteries charged while in storage is implemented.
To maintain the batteries:
• Minimize the amount of time the UPS uses battery power by matching the UPS configuration with the utility voltage
(see "6.1 HP R1500 G4 NA UPS and HP R1500 G4 JP/TWN UPS", page 19 and "6.2 HP R1500 G4 INTL UPS", page 20).
• Keep the area around the UPS clean and dust-free. If the environment is very dusty, clean the outside of the UPS regu-
larly with a vacuum cleaner.
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