I did a field test of prototype A in February/March 2010.
You can download the raw (and buggy) battery data.
(times are given in UTC if at all)
| date/time | event | cumulative runtime |
|---|---|---|
| 2010-02-26 evening | driving first leg, OFF over night | |
| 2010-02-27 3:32 | start with rechargable batteries (Ansmann 2850 mAh, fresh charge) | |
| 2010-02-27 afternoon | arrive at destination, ON over night | |
| 2010-02-28 7:10 | switch OFF | 27 h 38 min |
| 2010-02-28 evening | switch ON for some hours, then OFF over night | 31 h 33 min |
| 2010-03-01 evening | switch ON for some hours, then OFF over night | 35 h 43 min |
| 2010-03-02 evening | switch ON for some hours, then OFF over night | 39 h 21 min |
| 2010-03-03 evening | switch ON for some hours until discharged below 3 V | 40 h 2 min |
| 2010-03-05 12:30 | start with fresh alkaline batteries | 11 h 32 min |
| 2010-03-06 | keep ON | 35 h 32 min |
| 2010-03-07 0:03 | switch OFF | 35 h 35 min |
| 2010-03-07 17:30 | switch ON for way home | |
| 2010-03-07 evening | arrive at home, switch OFF | 36 h 57 min |