Achieving Optimal Battery Life - HP Codemaster 100 User Manual

CodeMaster 100
A new HP M2476B 2.5 amp-hour battery will provide 50 360-joule
NOTES
charge-shock cycles or a minimum of 2.0 hours of monitoring time. Perform a
capacity test on the battery when it fails to provide the minimum 2.0 hours of
monitoring time or 10 minutes of Low Battery warning time (starting from a
fully charged battery).
Using the AC or DC external power module does not eliminate the need to
condition the batteries and capacity test every 90 days.

Achieving Optimal Battery Life

The life of the battery depends on many variables, including type of usage
and temperature.
The HP CodeMaster 100 portable defibrillator/monitor uses a
nickel-cadmium battery, which is not adversely affected by repeated deep
discharges or partial charges.
During storage, batteries begin to loose their charge. This occurs in all
batteries, including the NiCd batteries (M2476B, M2477B) used in the HP
CodeMaster 100. Starting with a fully charged battery, greater than 50%
battery capacity will remain after 25 days. The discharge rate can be
increased due to the age of the battery and the environment in which it is
stored.
You will get the best battery performance if you remove the battery from the
HP CodeMaster 100 as soon as you see LOW BATTERY on the display. The
defibrillator displays this message just after you turn it on. Charge the battery
completely before replacing it in the HP CodeMaster 100 portable
defibrillator/monitor.
Because it is not always possible to fully charge a battery pack, you can use
the HP CodeMaster 100 with a partially charged battery pack.
You may store the battery pack at temperatures from -30°C to 50°C. If storage
will last longer than three months, store it below 35°C for optimal
performance.
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