GE MAC 1200 Operator's Manual page 183

Battery Operation
Operational Readiness
Operating Position
Revision C
Technical Specifications: Recording
„
Type: nickel-cadmium
„
Rated battery voltage 18 V
„
Rated battery capacity 1.3 Ah
„
Fully charged battery sufficient for up to 50 Automatic mode 1-page
ECGs, provided recorder is only switched on to record the ECGs.
„
Charge time for depleted battery approximately 4 hours (minimum
charge time for 1 Automatic mode ECG: 10 minutes)
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Battery life approximately 2 to 3 years, replacement by service only
„
Lithium battery for built-in clock, battery life approximately 5 years,
replacement by service only
Battery Maintenance
The battery in the MAC 1200/1200 ST unit should be exercised regularly.
This means the battery should be allowed to drain between charging
cycles.
If the ECG unit is left connected to wall power and/or only used
sporadically on battery power, a discharge cycle should be performed on
a monthly basis.
Turn the MAC 1200/1200 ST unit on, and allow the battery to drain.
When the Battery Low indicator illuminates, the unit can be connected
to wall power and allowed to recharge.
Use a battery maintenance chart to track the discharge cycles
After successful self-test, approximately 10 seconds after power-up.
Horizontal
MAC 1200/1200 ST
2012250-021
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