OrionStang Posted February 17, 2012 Report Share Posted February 17, 2012 digital multi meter Quote SMD Super Seller My Feedback Thread Link to comment Share on other sites More sharing options...
MD7786 Posted February 17, 2012 Author Report Share Posted February 17, 2012 So i guess everyone agrees the cap is trash. I just like to know the volts that the amp is running. How else to do this? Quote Link to comment Share on other sites More sharing options...
MD7786 Posted February 17, 2012 Author Report Share Posted February 17, 2012 What if I checked tto see about dual alternators and just have 2 factory 80 amp.? Seems cheaper than a h.o. that I found that was 400 Quote Link to comment Share on other sites More sharing options...
OrionStang Posted February 17, 2012 Report Share Posted February 17, 2012 (edited) It doesn't matter if you don't find the voltage issue first. Google dmm and do what I said. The back battery isn't getting a charge. What are you using to measure the voltage at the front and rear batteries? Edited February 17, 2012 by OrionStang Quote SMD Super Seller My Feedback Thread Link to comment Share on other sites More sharing options...
Cardboardcat15 Posted February 17, 2012 Report Share Posted February 17, 2012 If you only have the cap for a voltage readout, sell it and use the money to buy a voltmeter. Easier to install and you can have it up front with your HU/display. Do what Orionstang said, a DMM is a must have tool for any car audio installer/hobbyist. Check both batteries with the DMM while the engine is running, if your front battery has a good voltage readout, but the back doesn't, chances are you have a wiring issue. Check to see if your fuses and ground connections are secure. Remember, triple check all your connections. Quote My Channel on YouTube. Check it out for cinematic-style Car Audio videos. https://www.youtube.com/channel/UCcSMhtT-rpopJbdybubDgnQ New 2014 Scion TC 4th Wall Build https://www.stevemeadedesigns.com/board/topic/217173-2014-tc-4th-order-build-3-fi-sp4-15s/ Link to comment Share on other sites More sharing options...
MD7786 Posted February 17, 2012 Author Report Share Posted February 17, 2012 Well in front I have a volt meter that plugs into my cigarette lighter and back all I have is the readout on the ccap. Quote Link to comment Share on other sites More sharing options...
joh17 Posted February 17, 2012 Report Share Posted February 17, 2012 Damn that means I have to get my big 3 done too and an HO. HAHAHA Quote Link to comment Share on other sites More sharing options...
OrionStang Posted February 17, 2012 Report Share Posted February 17, 2012 Cigarette lighter meter is reading the whole car, and so is the cap. The batteries are connected, its like one big battery. Get rid of the crap plug in meter and cap, thats your first step. Then take the car to a shop and have them check your voltage in front and back, including where your fuses are. Quote SMD Super Seller My Feedback Thread Link to comment Share on other sites More sharing options...
MD7786 Posted February 18, 2012 Author Report Share Posted February 18, 2012 Ok well I used the dmm and found out a wire came loose at a fuse and was running straight battery. Thanks for the help guys. Its goin like a champ now and both sit at 12.8 while bumping at loudest. Quote Link to comment Share on other sites More sharing options...
Cardboardcat15 Posted February 19, 2012 Report Share Posted February 19, 2012 Ok well I used the dmm and found out a wire came loose at a fuse and was running straight battery. Thanks for the help guys. Its goin like a champ now and both sit at 12.8 while bumping at loudest. Glad to hear it's running smooth. You should still look for a better voltage meter, though. Quote My Channel on YouTube. Check it out for cinematic-style Car Audio videos. https://www.youtube.com/channel/UCcSMhtT-rpopJbdybubDgnQ New 2014 Scion TC 4th Wall Build https://www.stevemeadedesigns.com/board/topic/217173-2014-tc-4th-order-build-3-fi-sp4-15s/ Link to comment Share on other sites More sharing options...
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