josephj86 Posted February 15, 2019 Report Share Posted February 15, 2019 Will 2 xs d3100 batterys be good enough? I have 1 already and she's dimming my lights pretty good at full tilt I have a skar rp 4500 and a skar rp150.4 I'm running a 320 A alt Link to comment Share on other sites More sharing options...
image91 Posted February 15, 2019 Report Share Posted February 15, 2019 A second d3100 will definitely help. i'd think it will stop the dimming. The more the merrier in these cases but two d3100s should be a decent enough minimum for that size of a system to my knowledge. Do you have a big 3 installed? What's your wire run like? Will you be charging your batteries externally at all? & how do you play the system? Might help someone more experienced to better answer Link to comment Share on other sites More sharing options...
josephj86 Posted February 15, 2019 Author Report Share Posted February 15, 2019 I have 2 runs of 1/0 ...2 grounds and I will be charging maybe every 2 weeks I play it loud only when I'm showing people when I'm driving around I tone it down quite a bit my ears can only handle it full tilt for a couple of minutes at a time lol Link to comment Share on other sites More sharing options...
josephj86 Posted February 15, 2019 Author Report Share Posted February 15, 2019 Oh and yes definitely done the big 3 Link to comment Share on other sites More sharing options...
josephj86 Posted February 15, 2019 Author Report Share Posted February 15, 2019 I'm running the amp 0.5 ohm and I know it's bad for the amp but it's only full tilt once in awhile like I said my ears can only handle so much bass for a couple minutes Link to comment Share on other sites More sharing options...
CodyDaGoat Posted February 15, 2019 Report Share Posted February 15, 2019 I have a 270amp alt on 3 d3100s with 5k rms. If you can get 1-2 more than thatll help. Youll want to have a voltage meter and check on it to make sure you arent dropping too low. I suggest you top off the batteries 1-2 times a week. Link to comment Share on other sites More sharing options...
L&KCUSTOMS Posted February 15, 2019 Report Share Posted February 15, 2019 I'm currently running a 240a alt and 4 D3400xs on with 4 RP.1500s at 1 ohm and I only drop into the high 11s after about 15-20 mins of full tilt demos. 2/0 big 3 wiring with 4 power runs. Amps are all grounded to the chassi. Batteries get charged once a week. I'm considering running a 370a alt to cut out all voltage issues along with a couple of super caps. Link to comment Share on other sites More sharing options...
josephj86 Posted February 15, 2019 Author Report Share Posted February 15, 2019 Yes I do have a stinger volt meter up front with me I really have no more room for 3 g31s I have room for 1 more unless I get a custom box made I'm putting these batts where my spare tire would go Link to comment Share on other sites More sharing options...
josephj86 Posted February 15, 2019 Author Report Share Posted February 15, 2019 LK that's crazy man I havent went full tilt for that long .........I've gone 5 minutes at most (1song) and I've seen it drop to about 12.4 Link to comment Share on other sites More sharing options...
L&KCUSTOMS Posted February 15, 2019 Report Share Posted February 15, 2019 joseph, the 15-20 mins isn't straight non stop song change is the only "break" the electrical gets. I've pushed it before to see what the limits were and I eventually did see low 11s. A 370alt and a supercap should cut out all voltage drop for what I do with my set up. But It will end up being more extensive than that because I'm going to be swapping to 4 rp.4500s when I rebuild next and a sub upgrade as well. So as always more upgrades coming lol Link to comment Share on other sites More sharing options...
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