2.3
Battery life
The CONTAINER TRACKING UNIT is equipped with a 7.2 Volts / 36Ah Lithium-Thionyl-Chloride battery. Contradictory to other
batteries e.g. alkaline or so, is that the cell voltage does not drop if the battery wears and therefore it is difficult to measure the
actual battery conditions. Taking in count the self-discharge of the battery, average time to get a GPS fix and the average time
needed on the Iridium network to send a message, a prognoses of the battery life span related to several reporting time interval
was calculated. Rule of thumb is that 3650 reports can be send on one battery:
8 reports and a total of 16 positions per day battery life span 3.2 years
4 reports and a total of 8 positions per day battery life span 4.2 years
2 reports and a total of 4 positions per day battery life span 5.0 years
1 reports and a total of1 position per day battery life span 10 years
2.4
Repl
a
cement of the battery
If the battery needs to be replaced, we advice to return the CONTAINER TRACKING UNIT to the seller. Along with the battery,
the gasket in the lid of the unit, shall also be replaced to ensure optimum moisture ingress protection.
Data
Values
Description
Physical
Size
Weight
Optional Magnets Weight
Magnets Holding Force
350x100x50 mm
1250 gr.
180
1080 N (~108 Kg)
Environmental
Operating Temperature
-35..+65 C
Humidity
Relative 100%
Electrical
Battery
7.2V / 36000mAh
Power consumption
Sleep: 216 uA
Estimated nr. of
transmissions from 1
battery
3650
Sensors
Motion Sensor
used to control reporting frequency
Ferro Detector
used as turn on/off switch and
removal/sabotage detector
Satellite
Iridium Constellation
True Global Coverage
GPS Accuracy
20 channels Sirf III
1.8 m CEP(95)
3
Trouble-Shooting
Also read the section trouble-shooting in the first section of this document!
