one story a little that’s a bit funny i think is we were doing contacts in a busy part of town and we were led by some guy or rather directed to another street to talk to a couple of people so then a police come up and asks us if we have id well as were taking it out he says into his radio the street corner that we were on and 20 cops show up in like 3 minutes! thanks for sharing data with us . also charge and discharge at least once a month. 