PowerWalker Battery pack for VFI 10000P_RT LCD - Manual (Page 52)

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4. Disconnect the internal battery connectors
5. Replace the UPS front cover
6.3 Storing the UPS and Batteries
If you store the UPS for a long period, recharge the battery every 6
months by connecting the UPS to utility power. The batteries charge to
90% capacity in approximately 4 hours. However, it is recommended
that the batteries charge for 48 hours after long-term storage.
Check the battery recharge date on the shipping carton label. If the date
has passed and the batteries were never recharged, do not use the UPS.
Contact your service representative.
When to Replace Batteries
When the status summary screen displays the UPS fault icon with the
“Service Battery” alarm and the audible alarm sounds continuously, the
batteries may need replacement. Contact your service representative to
order new batteries.
6.4 Testing Batteries
For a battery test, please check:
The batteries must be fully charged.
The UPS must be in Normal mode with no active alarms.
The load must be higher than 10%.
To test batteries:
1 Connect the UPS to utility power for at least 48 hours to charge
the batteries.
2 Press the button for one second to go to the main menu
selection and scroll down to the Control menu using the
button.
3 Press the button to enter the Control menu.
4 Use the button to scroll to the Battery Test option.
5 Press the button to start the battery test.