I'm confused: bought a volt meter, which battery?

[punch 10+ year member]

Ok, i bought a stinger digital voltage meter, which will be installed in the centre console of my car....

I will be running a dual battery set-up, with regulator, should I be watching the voltage of the amps battery? the cars main battery, or will this watch both of them anyway????

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[kross 10+ year member]

The voltage should read close to the same at both points. The long power wire has resistance, so there will be a slight difference in voltage when measured at either end.

The questions is, what do you care about? The voltage your amps are getting, or the voltage your car is getting? Answer that question, and you'll know where to put the voltmeter. //content.invisioncic.com/y282845/emoticons/smile.gif.1ebc41e1811405b213edfc4622c41e27.gif

 

[CaliforniabOY5 10+ year member]

couldnt have said it better myself!

 

[punch 10+ year member]

The voltage should read close to the same at both points. The long power wire has resistance, so there will be a slight difference in voltage when measured at either end.
The questions is, what do you care about? The voltage your amps are getting, or the voltage your car is getting? Answer that question, and you'll know where to put the voltmeter. //content.invisioncic.com/y282845/emoticons/smile.gif.1ebc41e1811405b213edfc4622c41e27.gif

ah good point, i wanna make sure I don't drain the main battery and leave myself stranded, but wouldn't the battery isolator do that? so hmmm maybe I want to watch the amps power then??? hmm maybe I should have bought 2 meters!!!!