i have read many of the threads on here about which is better volt or amp meter. i know their are more opions on that than -holes. my question is i bought a voltmeter, on the directions to hook it up it said to run the wire from the alt that charges the bat to voltmeter then to bat. it also said not to hook it to ground. i read on internet that you can just run a wire from bat to + post on voltmeter, than another on- post to ground. i would like to do it this way but will it cause problems. will it always be putting a draw on my batt. or will it cause meltdown. just for gen onfo i am running a gm 94 amp one wire alt. any help would be great.