Terumo Advanced Perfusion System 1 Operator's Manual page 321

Additional Information
Monthly...
Battery backup system The battery system requires monthly maintenance to ensure the
condition of the batteries. If the system is not charged monthly,
see the Long Term Storage section below.
Plug the system into AC (Mains) power and turn it on using the
AC (Mains) power switch.
CAUTION: If AC (Mains) power switch is not turned on, the
battery system will not charge.
Ensure the system is connected to AC (Mains) power and
powered on until the power status indicator LED turns green.
If the power status indicator LED does not turn green after 13
hours, contact Terumo Customer Service.
After fully charging the battery system, remove the system from
AC (Mains) power and confirm the system properly goes onto
backup battery power. Run the Battery Test by running system on
battery for at least 5 minutes.
CAUTION: If the Battery Test results in an indication of less
than one hour battery life for a fully loaded system, call Terumo
Cardiovascular Systems service.
WARNING:
Do not start a case with less than one hour battery
life. If the battery should be charged, then contact Terumo
Customer Service. Do not operate the system until the battery
system has been serviced.
Note that if more than 60 days elapses without running the
Battery Test, a reminder will be posted each time the Main Screen
is entered until the test is performed.
CAUTION:
Replace the batteries every two years OR whenever
the batteries cannot be fully recharged within 13 hours OR
whenever fully charged batteries will not power the entire system
for at least 60 minutes.
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