Battery Capacity Test - GE Datex-Ohmeda Aisys Carestation Reference Manual

6.10 Battery capacity test

Test procedure
M1046983 04/08
Although replacement of the backup batteries is recommended at the end of 4 years,
batteries that pass the capacity test can be considered viable for battery backup of the
system for up to 6 years at the discretion of the hospital.
Before testing the batteries, ensure that they are fully charged.
1. Turn the system on and start a case (simulated).
2. Turn off the mains system breaker on the AC Inlet.
3. Allow the system to run on battery until it does an orderly shutdown and powers off
(can be in excess of 90 minutes).
4. Set the system switch to Standby and turn on the mains system breaker.
5. Set the system switch to On and enter the Service Mode.
6. Launch the Service Application.
7. On the Power Diagnostics menu (Section 12.7) select Power Board.
8. The Power Board window (Section 12.7.1) shows the Date battery Tested (the last
full battery discharge) and the Last Full Discharge time.
• If the Last Full Discharge time is greater than 45 minutes, the batteries can be left
in service for one more year.
• If the Last Full Discharge time is less than 45 minutes, both batteries should be
replaced.
6 Installation and Maintenance
6-15