Table 2.
Effect of data collection frequency and of programming the units to be turned off at night (23:00 to 05:00) on the battery life (Test I) of the Igot-U GT100 GPS data-loggers.
| Average time (in hours) for battery depletion (range) | ||
|---|---|---|
| Time frequency | Night-ON1 | Night-OFF1 |
| 1 sec | 4.5 (4.4 - 4.5) | ND2 |
| 30 sec | 26.7 (30.3) | 34.1 (40.9) |
| 1 min | 28.9 (18.4 - 48.1) | 42.6 (38.4 - 46.7) |
| 2 min | 57.1 (50.8 - 70.3) | 60.3 (53.3 - 65.9) |
| 2.5 min | 68.5 (61.2 - 73.2) | 71.8 (71.7 - 72.0) |
| 3 min | 66.3 (51.5 - 76.3) | 90.4 (11.3 - 95.0) |
1GPS units can be programmed to log positions only during the day. Night-ON represents units set to continuously collect positions whereas Night-OFF represented units set to collect positions only during the day and crepuscule (05:00 am to 9:00 pm).
2The night option was not tested because of the short battery life of units at this collection frequency.