tdsa23 Posted July 19, 2011 Report Share Posted July 19, 2011 I recently installed a mechman alt WTF!!! And whated to know what is the volts cold that people run on there batterys. I have one 5100 and a 3400 in the trunk. Big 3 did. I'm currently charging cold at 15.3 is that to high for my batterys even tho I see alot of people running that high? Quote XS Power D5100, 2 D2700s, & 2 D975s MechMan 220a Alt DC 5K Kicker 650.4 2 12 Ascendant Audio Mayhem's Pioneer DEH-P7200HD Rockford Fosgate 3sity.1 Build log: https://www.stevemeadedesigns.com/board/topic/166792-88-nissan-maxima-trunk-build/#entry2430899 https://www.stevemeadedesigns.com/board/topic/191439-lexus-is300-fi-crescendo-shca-rf-pics/ Link to comment Share on other sites More sharing options...
tdsa23 Posted July 20, 2011 Author Report Share Posted July 20, 2011 I got views but no replays come on guys. Quote XS Power D5100, 2 D2700s, & 2 D975s MechMan 220a Alt DC 5K Kicker 650.4 2 12 Ascendant Audio Mayhem's Pioneer DEH-P7200HD Rockford Fosgate 3sity.1 Build log: https://www.stevemeadedesigns.com/board/topic/166792-88-nissan-maxima-trunk-build/#entry2430899 https://www.stevemeadedesigns.com/board/topic/191439-lexus-is300-fi-crescendo-shca-rf-pics/ Link to comment Share on other sites More sharing options...
nickers Posted July 20, 2011 Report Share Posted July 20, 2011 no 15.3 is fine, some people even run higher, so says the guys in one of the threads i responded to, he said he has a friend running 15.7V. i wouldnt up it unless i researched more. Quote chevrolet all day er day. '81 camaro z28 performance '03 silverado ext cab show and go Link to comment Share on other sites More sharing options...
tdsa23 Posted July 20, 2011 Author Report Share Posted July 20, 2011 Need more input? Quote XS Power D5100, 2 D2700s, & 2 D975s MechMan 220a Alt DC 5K Kicker 650.4 2 12 Ascendant Audio Mayhem's Pioneer DEH-P7200HD Rockford Fosgate 3sity.1 Build log: https://www.stevemeadedesigns.com/board/topic/166792-88-nissan-maxima-trunk-build/#entry2430899 https://www.stevemeadedesigns.com/board/topic/191439-lexus-is300-fi-crescendo-shca-rf-pics/ Link to comment Share on other sites More sharing options...
jmilch Posted July 20, 2011 Report Share Posted July 20, 2011 Generally under 15 is fine. A few people say under 16. Quote Pioneer AVH-P4300DVD | Hertz 6.5 | Alpine Type R 6x9 | Custom 200A Alt | Knu Flek 1/0 Big 3 and all wiring | Eclipse EA3422 | AudioQue 2200d | DC XL 12 | Red Oak Box ~2.8 cubes @ 30 hz | Link to comment Share on other sites More sharing options...
nickers Posted July 20, 2011 Report Share Posted July 20, 2011 are we talking charging battery voltage or alternator output voltage? Quote chevrolet all day er day. '81 camaro z28 performance '03 silverado ext cab show and go Link to comment Share on other sites More sharing options...
tdsa23 Posted July 20, 2011 Author Report Share Posted July 20, 2011 Where talking alt output voltage. When its hot it drops down under 15volts. Quote XS Power D5100, 2 D2700s, & 2 D975s MechMan 220a Alt DC 5K Kicker 650.4 2 12 Ascendant Audio Mayhem's Pioneer DEH-P7200HD Rockford Fosgate 3sity.1 Build log: https://www.stevemeadedesigns.com/board/topic/166792-88-nissan-maxima-trunk-build/#entry2430899 https://www.stevemeadedesigns.com/board/topic/191439-lexus-is300-fi-crescendo-shca-rf-pics/ Link to comment Share on other sites More sharing options...
nickers Posted July 20, 2011 Report Share Posted July 20, 2011 ya people run 15.7 alt output, 14.7 volts is charging voltage of your battery.. soo you could probably scope up your settings bit Quote chevrolet all day er day. '81 camaro z28 performance '03 silverado ext cab show and go Link to comment Share on other sites More sharing options...
crunkjuice1 Posted July 20, 2011 Report Share Posted July 20, 2011 (edited) leave it alone. cold start that is fine once your car warms up and alt warms up specifically its output voltage will drop to safe levels. Did the alt come with AVBM harness? if so just keep an eye on your voltage once car is hot that while driving you don't go over 14.8v If it does just make fine adjustments down until around 2000rpm your at 14.8v hot. you can mess your batteries up if you charge them higher than what xs recommends for longer than 5min. Edited July 20, 2011 by crunkjuice1 Quote Link to comment Share on other sites More sharing options...
Team Nemesis-DJ Posted July 20, 2011 Report Share Posted July 20, 2011 15.3 is fine Quote Link to comment Share on other sites More sharing options...
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