SnowDrifter Posted August 8, 2013 Report Share Posted August 8, 2013 Huh.... Learn something new every day. Good stuff Tony, I appreciate the explanation! ~~~~~~~~SAY NO TO PHOTOBUCKET~~~~~~~~ Snow's DD-1 tracks here: https://www.stevemeadedesigns.com/board/topic/167433-snows-dd-1-tracks/ My take on OFC vs CCA: https://www.stevemeadedesigns.com/board/topic/110381-things-that-piss-you-off-in-the-car-audio-world/?do=findComment&comment=2461444 Link to comment Share on other sites More sharing options...
snafu Posted August 8, 2013 Report Share Posted August 8, 2013 NP - I do feel it's worth mentioning that some alternators may not react this way due to their design. Tony Candela - SMD Sales & Marketing Email me at [email protected] to learn about becoming an SMD Partner! Link to comment Share on other sites More sharing options...
scoobywrx05 Posted August 8, 2013 Report Share Posted August 8, 2013 Please correct me if I'm wrong, but doesn't the regulator read off of the batteries internal resistance to figure the charging voltage? With that being said wouldn't adding an in line fuse create more resistance causing the alternator to charge at the wrong voltage for the battery? Or would be the said resistance of the fuse be so small that it would not make a difference? Link to comment Share on other sites More sharing options...
SnowDrifter Posted August 8, 2013 Report Share Posted August 8, 2013 Voltage drop from a fuse is nil ~~~~~~~~SAY NO TO PHOTOBUCKET~~~~~~~~ Snow's DD-1 tracks here: https://www.stevemeadedesigns.com/board/topic/167433-snows-dd-1-tracks/ My take on OFC vs CCA: https://www.stevemeadedesigns.com/board/topic/110381-things-that-piss-you-off-in-the-car-audio-world/?do=findComment&comment=2461444 Link to comment Share on other sites More sharing options...
scoobywrx05 Posted August 8, 2013 Report Share Posted August 8, 2013 I think you misunderstood the question at hand snow. Yes a fuse does not influence voltage drop hardly at all, but I was not talking about voltage drop. Not directly at least. I was referring to the resistance the regulator is seeing from the battery. How much is it changed by adding an inline fuse? How much if any does voltage change from the alternator to the battery? Wondered if anyone has tested this yet. I'm guessing it is a small amount equal to maybe around a tenth to a hundredth of a volt. Link to comment Share on other sites More sharing options...
SnowDrifter Posted August 8, 2013 Report Share Posted August 8, 2013 Voltage regulator doesn't charge based on resistance, if charges based on voltage. Hence the term voltage regulator. A fuse, which by design is a source of resistance will create a very very tiny amount of voltage drop, and may cause the alt to charge oh so slightly higher But realistically the difference isn't enough to measure. Let alone notice a difference. Hopefully that made sense? Or I'm way off base and still not understanding the question lol ~~~~~~~~SAY NO TO PHOTOBUCKET~~~~~~~~ Snow's DD-1 tracks here: https://www.stevemeadedesigns.com/board/topic/167433-snows-dd-1-tracks/ My take on OFC vs CCA: https://www.stevemeadedesigns.com/board/topic/110381-things-that-piss-you-off-in-the-car-audio-world/?do=findComment&comment=2461444 Link to comment Share on other sites More sharing options...
crunkjuice1 Posted August 11, 2013 Report Share Posted August 11, 2013 If in doubt just ask the ALT maker. MM has always told me not to fuse it. Link to comment Share on other sites More sharing options...
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