
Battery Maintenance 
When to Replace Batteries
If the red LED flashes, check the LCD display for the type of alarm. If the alarm reads “Battery 
NOTE: Depending on usage and environmental conditions, your batteries will last 3 to 6 years after purchase.
Verify that battery replacement is required by initiating a UPS 
See Chapter 3, “Operation,” for information on initiating a 
Pre-Failure  Battery Warranty
The 
Compaq maintains the highest standards in the industry, as evidenced by the Compaq 
beneficial in at least two significant ways¾reduced total cost of ownership and reduced downtime.
Obtaining New Batteries
Compaq supplies replacement battery packs for all UPS models. Procure replacement batteries for the UPS when the LCD alarm reads “Battery Low,” indicating that new batteries will be required in 30 to 60 days.
Replacement Battery Kit part number: 
IMPORTANT: Compaq recommends that you do not maintain an inventory of spare batteries 
