GORILLAslap Posted February 5, 2012 Report Share Posted February 5, 2012 does it matter if u have a 12volt up front and a 14v in back?? Quote starting fresh, chrysler 300.. no subs amp nothin I NEED HELP looking to purchase saz-1500d and 15" 1000rms subREFS- feedback/refs.. click! Link to comment Share on other sites More sharing options...
KenC210 Posted February 5, 2012 Report Share Posted February 5, 2012 i would say as long as they arent wired together Quote Kids Cadi Power Wheel Build2007 Ford Escape Build2012 Toyota Corolla Build 2013 Toyota Tundra Link to comment Share on other sites More sharing options...
ric006 Posted February 5, 2012 Report Share Posted February 5, 2012 just use an optima in the back Quote Link to comment Share on other sites More sharing options...
14dbass Posted February 5, 2012 Report Share Posted February 5, 2012 If you have a 12 up front and a 14 in the back you need two different charging systems they can not be linked together a 14 volt batt needs to charge at around 16.8 volts and 12 volt battery will hate you and not last log at all if you send that many volts to it. Quote Suburban Build Log "So much money and time spent making copper winding move up and down a magnetic pole" DC Audio Eclipse Link to comment Share on other sites More sharing options...
GORILLAslap Posted February 5, 2012 Author Report Share Posted February 5, 2012 so if i bought a batt for the font and just tried to get big as possible ( 2800rms build 200a alt) cause i have room for a bigger batt should i get a 12v Quote starting fresh, chrysler 300.. no subs amp nothin I NEED HELP looking to purchase saz-1500d and 15" 1000rms subREFS- feedback/refs.. click! Link to comment Share on other sites More sharing options...
armykyle1 Posted February 5, 2012 Report Share Posted February 5, 2012 like said, you need two charging systems, or a step down modual for the 12v batt, but the 14v needs 16+ Quote TEAM XS POWERTEAM HEAVY HERTZMy build- http://www.stevemeadedesigns.com/board/topic/194454-e46-bmw-build-pos/#entry2914134youtube- http://www.youtube.com/user/armykyle1big build starting Link to comment Share on other sites More sharing options...
Autruche Posted February 5, 2012 Report Share Posted February 5, 2012 They can share a common ground, but they will have to be charged with a stepdown or seperate alternators as they cannot share a common positive. 12 volt battery should be charged at less than 15 volts (14.4 preferably) and a 14 volt battery should be charged at less than 17 volts (16.8 preferably.) If you aren't running tens of thousands of watts, then just stay with a 12 volt system. Way too many headaches otherwise. Quote Need Test Tones/Sine Waves? Click Here!My Saab 9000 build1993 Saab 9000 Aero 5spdPioneer - Zapco - Hifonics - Sundown Audio - O2 Audio - RE AudioJust Say No To Rear SpeakersJust Say No To CCA WireReal Men Drive StickHit me up on Facebook, if you want Link to comment Share on other sites More sharing options...
GORILLAslap Posted February 5, 2012 Author Report Share Posted February 5, 2012 If you aren't running tens of thousands of watts, then just stay with a 12 volt system. Way too many headaches otherwise. THANK YOU good sir Quote starting fresh, chrysler 300.. no subs amp nothin I NEED HELP looking to purchase saz-1500d and 15" 1000rms subREFS- feedback/refs.. click! Link to comment Share on other sites More sharing options...
evermaxx Posted February 5, 2012 Report Share Posted February 5, 2012 just use an optima in the back LOL. Quote Team Subsonic Lows Get your garbage EMF products of my amp bitch Man....it makes a nice work bench Link to comment Share on other sites More sharing options...
SQMonte Posted February 5, 2012 Report Share Posted February 5, 2012 does it matter if u have a 12volt up front and a 14v in back??Yep it matters, but it's been answered already as to why. But also, if you get batteries that are different type, gel/agm/sla, and that have different ah ratings, that can be an issue too. Cause different types and different capacities charge and discharge at different rates. Quote Alpine CDA-117...Memphis 16-X03 CDT Audio SQA-4100...SEAS Prestige H1396...Crescendo MP-6 Soundstream Rubicon 1.2500d...Digital Designs 3512f Link to comment Share on other sites More sharing options...
Recommended Posts
Join the conversation
You can post now and register later. If you have an account, sign in now to post with your account.