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ESL User Manual
1.6.2 Main Battery:
•
The main batteries in the EE200 are 2 CR2450 Li-Mn batteries:
•
Nominal capacity: 2x600 mAh
•
Nominal voltage: 3V.
•
Low voltage: Less than 2.8 V
•
Operating time: >7 years (default settings; 4 refreshes/day; 15-25° C)
The operating time of the batteries is based on a realistic estimation of any of the following
factors that influence the battery life:
Factor
Default s values and
estimated averages
Correlation *
(higher is better)
Influence
Polling for data &
reporting settings
Interval: 20 seconds
Retransmissions: 10%
Report ratio: 1 to 39
Yes
No
Yes
61%
Display updates
4 per day
Temperature: 15-25° C
No
No
20%
Out of range /
base station OFF %
Not connected: 2%
Number of channels: 5
No
No
4%
Sleep time
99,9%
Yes
9%
Battery self-‐discharge
1 % / year
No
6%
* The correlation shows whether increasing the listed value increases or decreases the
power consumption.
For example:
•
Increasing the poll interval lowers the power consumption
•
Turning off the base stations increases the power consumption
•
A lower operating temperature increases the power consumption
•
More display updates per day increases the power consumption
