Metal Detector Battery Longevity Study

Report No. ARL-TR-5282
Authors: Jennifer Mullins, Donald Porschet, and John Hopkins
Date/Pages: August 2010; 44 pages
Abstract: We conducted a battery longevity study on seven metal detectors: the Vallon VMC1, Vallon VMH3CS, Garrett RECON-PRO AML-1000, MineLab F3, Foerster Minex 2FD 4.530, Scheibel Mini Mine Detector (MIMID), and the Ceia Compact Metal Detector (CMD). The test consisted of two separate phases: root mean square (RMS) current draw with associated low battery threshold determination and waveform capture of the source current and voltage for each unit. We ran additional tests to review the turn-on and turn-off waveforms for each unit. The service life of the system will vary according to the system's operating environment; quality and brand of batteries; operating conditions; and condition of battery storage. Based on our experiments, we determined that the Foerster Minex 2FD 4.530 will operate 56 h while the Ceia CMD will only function for 5 h per set of batteries. The remaining five mine detectors fell into the 10 to 30 h range with regard to operational longevity.
Distribution: Approved for public release
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Last Update / Reviewed: August 1, 2010