Had a great time.. And you guessed it, Dead battery. Left the radar detecter powerer on. GPS off but plugged in ( kept chargeing the internal battery) while. draining the truck. cobra 29 LX.on but drains for the clock etc. and a few cell phone charrgers.. 2012 chev Van. recharged slowly with A Small trickle charger... don't forget to un-plug everything fora long week or weekend. I checked Sunday for work monday. truck has tire air sensors and some of the tires lost 4-8 lbs of air while sitting???????? does that make sence on the air pressure. the have been steady while driveing daily.