Owners manual

25Smart-UPS On-Line SRT5K/6K Tower/Rack-Mount 3U/4U
Smart Battery Management
Definitions
• Battery Module: A string of battery cells arranged to produce a battery assembly with a connector.
• Replaceable Battery Cartridge (RBC): An APC battery cartridge consisting of two battery modules.
Replacement RBCs can be ordered from the APC web site, www.apc.com.
• Smart External Battery Pack (XLBP): An enclosure that contains RBC(s) and battery management electronics.
• User Interface (UI): Any interface by which a user can interact with the system. This may include a UPS display
interface, a network management interface or PowerChute™ Network Shutdown software.
NOTE: Do not use a battery that is not APC approved.
The system will not detect the presence of a non APC approved battery and may adversely affect the operation
of the system.
Use of a non APC approved battery will void the manufacturer warranty.
Features
Smart Battery Management provides the following features:
• Monitors and informs the user of the health of each RBC.
• Monitors and shows on the UPS Display Interface screen, the date for the end of useful life for each RBC.
• The UPS emits an alarm and shows a message on the UPS Display Interface screen to indicate the estimated
battery end of life. On the UPS Display Interface screen the user can set the number of days before the alarm is
heard and the message appears on the UPS Display Interface screen.
• Automatically detects the addition or removal of XLBPs and RBCs.
• Monitors the internal temperature of each XLBP and automatically adjusts the battery charging.
Maintenance
• RBC maintenance: The APC RBC uses sealed lead acid battery cells and does not require maintenance.
• Runtime Test (Calibration): This should be performed anytime the steady state load is changed significantly,
for example a new server is added to or removed from the UPS load.
• Battery health monitoring: The battery energy output and voltage are monitored to assess the health of the
installed batteries when the UPS is operating on battery.
Battery health monitoring is done during a UPS Self Test, a Runtime Calibration Test, and when the UPS is
operating on battery power.
The UPS can be configured to perform periodic, automatic Self Tests.
End of useful life
• Near end of life notification: A warning message will appear on the UPS display interface screen when each
RBC is approaching the end of its useful life. For configuration details refer to Replacement Notification Time
and Replacement Battery Alarm Time.
The estimated replacement date for each RBC is available through the UI.
• Needs replacement notification: The UPS display interface screen shows when RBC replacement is required.
The RBC must be replaced as soon as possible.
When an RBC requires replacement, the UPS display interface may recommend that additional RBCs be
replaced if they will soon reach the end of their useful life.
CAUTION: Continued operation after end of useful life notification may cause damage to the batteries.
• Recycling: Remove the RBC from the XLBP. Recycle the RBC. Do not disassemble an RBC.