Jhunt94 Posted May 15, 2014 Report Share Posted May 15, 2014 I have an 07 F150 with big 3 and D3400 battery and mine pretty much does the same thing. In the morning it will be at 14.3V and as the day goes on it will end up at 13.8. It seems like it's common among this generation of F150. A new battery will handle current draw better, but unless you externally regulate your alt you're probably never going to see it charging above 14.3-14.6. 2007 Ford F-150 Reg. Cab. Flareside250 Mechman AlternatorSky High Car Audio Big 3 XS Power D3400Rockford Fosgate 1/0 amp kitRockford Fosgate T1500-1bdcpRockford Fosgate T400-4DC Audio Lvl 4 12"Rockford Fosgate Punch 6.5" componentRockford Fosgate Punch 6x8Pioneer AVH-P2300DVDSMD Volt Meter Link to comment Share on other sites More sharing options...
Gregorio253 Posted May 15, 2014 Author Report Share Posted May 15, 2014 Thanks for that info I was wondering if anything like that goes on for anyone else and how much rms total which the big three and d3400 how's you voltage Link to comment Share on other sites More sharing options...
Jhunt94 Posted May 15, 2014 Report Share Posted May 15, 2014 Thanks for that info I was wondering if anything like that goes on for anyone else and how much rms total which the big three and d3400 how's you voltage I'm probably pushing around 2500 watts rms. I also have a 250a Mechman alternator so with that plus the big 3 and the D3400, my voltage is good. I don't have to much voltage drop unless I'm playing certain songs. 2007 Ford F-150 Reg. Cab. Flareside250 Mechman AlternatorSky High Car Audio Big 3 XS Power D3400Rockford Fosgate 1/0 amp kitRockford Fosgate T1500-1bdcpRockford Fosgate T400-4DC Audio Lvl 4 12"Rockford Fosgate Punch 6.5" componentRockford Fosgate Punch 6x8Pioneer AVH-P2300DVDSMD Volt Meter Link to comment Share on other sites More sharing options...
Gregorio253 Posted May 15, 2014 Author Report Share Posted May 15, 2014 I have 1700-2000rms and stock alt with big three and my voltage dropps low some times I was looking at mechman alts I just don't have the money yet Link to comment Share on other sites More sharing options...
Jhunt94 Posted May 15, 2014 Report Share Posted May 15, 2014 Well I can tell you it's definitely worth the money to do it. 2007 Ford F-150 Reg. Cab. Flareside250 Mechman AlternatorSky High Car Audio Big 3 XS Power D3400Rockford Fosgate 1/0 amp kitRockford Fosgate T1500-1bdcpRockford Fosgate T400-4DC Audio Lvl 4 12"Rockford Fosgate Punch 6.5" componentRockford Fosgate Punch 6x8Pioneer AVH-P2300DVDSMD Volt Meter Link to comment Share on other sites More sharing options...
Gregorio253 Posted May 15, 2014 Author Report Share Posted May 15, 2014 Yeah thanks guys for the info and help Link to comment Share on other sites More sharing options...
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