at night when i put my lights on my battery meter goes down, system on or off.... what does that usually mean... alt or battery?

 

Could be the battery and/or the charging system. You can either one tested for free at AZ.

 

alright cool, ill go there tommorow, thanks for the fast reply

 

How do you test the altenator with a voltage meter?

 

Don't know if you have all of these attachments or if your MM does all of these functions, but here's an article from Fluke:
Testing Electrical Systems with a Digital Multimeter

*EDIT* - that article is for older types of automotive electrical systems, but much of it still applies.

 

awesome thanks Kyle

 

NP
When I get a little extra time, I'll see if I can't dig up something alittle more current.