80-J7616-1 Rev. C
MAY CONTAIN U.S. AND INTERNATIONAL EXPORT CONTROLLED INFORMATION
37
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Battery Problem
Problem: Low Battery Message
The FST and the Trailer Tracks Portal display the internal lithium ion battery voltage each time
the TT150 communicates.
When a TT150 terminal is shipped from the factory, the battery is charged to roughly 3.8 volts,
which is the optimum level for shelf storage. If a TT150 terminal is configured to communicate
once a day, it is expected to be able to provide daily status reports for 60+ days without
external power.
A fully charged battery will register 4.1 to 4.2 volts.
When the battery reaches a threshold of 3.55 volts, it will send a low battery message. The low
battery status will be cleared once the battery is charged to at least 3.75 volts.
At 3.5 volts or less, the TT150 system will go into hibernation and will require external power to
wake up.
If a TT150 terminal’s battery is not getting recharged when connected to external power:
•
Confirm the tractor is supplying power to the trailer’s 7-way.
•
Confirm the fuses on the TT150’s blue and brown wires are good.
•
Confirm the TT150’s power connections are good at the trailer’s 7-way.
