do these battery chargers that run through the cigarette lighter outlet really work? i thought power can't be transfered to/from the power outlets in the car once it is off and in sleep mode.
2007 335 coupe Alpine white, steptronic, sportpack, etc. (gone)
2006 X3 3.0 steptronic Titanium Silver, 2009 E92 335xdrive, next.... Caddy CTS_V!
13 Lincoln MKZ? hmmm.