The ATLAS PL Personal GPS Locator operates off of two internal Lithium-Ion battery packs. Combined, the two batteries deliver 6.8 – 8.6V to the internal radio circuitry. As the ATLAS PL is used, the batteries discharge, the battery voltage drops, and the RF power will slightly decrease.
Below is a table showing typical RF power output verses battery life.
|Time (Hrs)||Cell Voltage||Pack Voltage||% Battery Remaining||RF Power Output||TX Current|
The above data is represented graphically in the following chart:
The time duration that the ATLAS PL will operate before its batteries must be recharged is dependent upon the GPS mode and the position transmission/update rate.
Below is a chart showing approximate battery life. The Green line is if the PL is operating in GPS mode 2, 4, or 9 with the UHF radio receive enabled. The Blue line is GPS mode 9 with the receive disabled (Transmits position only).