
Z-800 Instructions for Use.
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P/N 800-600-01-08 Rev 08/10
MAINTENANCE
BATTERY CARE AND MAINTENANCE (Continued)
Battery Operating Time
Battery run time is a function of the activity of the
device. In the standard battery configuration of a
1800mAh battery, a fully charged new battery will
provide approximately 4 hours of operation infusing at
125ml/h. The extended battery option of 4500mAh
will provide approximately 8 hours of operation
infusing at 125ml/h. As flow rate increases, the power
consumption increases, the battery operating time will
decrease accordingly. See
TABLE. Battery Operating
Time
on the right. In the standard configuration, a
fully discharged battery will return to a fully charged
capacity in 14-18 hours in an ambient temperature
between 50 – 80.6 °F (10 – 27 °C). The extended
battery configuration option is accompanied with a
fast charging circuitry, which will complete the full
charge in 5-6hrs.
Battery Cycle Life and Aging
As batteries get older and go through many
charge/discharge cycles, batteries ―wear out‖, in that
the chemicals and materials used to construct the cell
break down. It is estimated that there will be a 30%
capacity decrease of battery capacity over a 200 full
discharge/charge cycles within 2 years of normal use.
As battery ages, the battery operating time will
decrease.
Partial Discharge/Recharge
When a battery is partially discharged, then charged
for less than the full time, differences between
individual cell capacities result in cells completing
charge at different times. If the full charge sequence is
not then completed, the cell ―mismatch‖ becomes
progressively greater. This will be observed by user as
low apparent run times and premature low battery
warning and alarms. The lowered capacity is not
permanent, but may require 2-3 full discharge/charge
cycles to recover.
Table: Battery Operating Time
Flow
Rate
1800mAh
Battery
4500mAh
Battery
1ml/hr
5 hrs
10hrs
25ml/hr
5 hrs
10hrs
125ml/hr
4 hrs
8hrs
999ml/hr
3 hrs
6hrs
CAUTION:
The battery
capacity indicator display represents
the total capacity of the battery
measured by voltage. It only
represents the percentage of battery
capacity against its total capacity. As
battery ages, the total capacity of the
battery will decrease.