Kevin JT Posted June 21, 2021 Report Share Posted June 21, 2021 Starting a new build, and running 2 alts. I want to keep the factory alt & batt, and run my XS Power batteries separately. Do I need to do anything special for the grounds on the second set of batteries, or can I ground them to the chassis as well? I didn’t know if there would be any issues with the voltage difference between the 2 electrical systems. Link to comment Share on other sites More sharing options...
MrSkippyJ Posted June 21, 2021 Report Share Posted June 21, 2021 Are they both going to be 12v systems? F150: Stock 2019 Harley Road Glide: Amp: TM400Xad - 4 channel 400 watt Processor: DSR1 Fairing (Front) 6.5s -MMats PA601cx Lid (Rear) 6x9s - TMS69 Link to comment Share on other sites More sharing options...
Kevin JT Posted June 21, 2021 Author Report Share Posted June 21, 2021 Well the XS batts run a little higher around 13. I just want to get the most bang for my volt Link to comment Share on other sites More sharing options...
MrSkippyJ Posted June 22, 2021 Report Share Posted June 22, 2021 I dont see much of a reason to run separate systems if they are both 12v. F150: Stock 2019 Harley Road Glide: Amp: TM400Xad - 4 channel 400 watt Processor: DSR1 Fairing (Front) 6.5s -MMats PA601cx Lid (Rear) 6x9s - TMS69 Link to comment Share on other sites More sharing options...
Kevin JT Posted June 22, 2021 Author Report Share Posted June 22, 2021 Theoretically if they were 16V, what would I have to do? Link to comment Share on other sites More sharing options...
MrSkippyJ Posted June 23, 2021 Report Share Posted June 23, 2021 Not 100% sure about this but if you are running a separate alternator with a different charging voltage then really the only thing you need to do is make sure none of your stock electrical is connected to that alternator. I'm pretty sure you can use the same grounds for both systems. Don't take my word for that though, wait till someone confirms it. Keep in mind, this is for systems that charge at different voltages, not small voltage differences across systems that charge at the same voltage. If you have 2 12v alternators then you don't have to separate them at all. Same with batteries, as long as they are the same type of battery (all AGM, lead acid, or lithium, etc...) F150: Stock 2019 Harley Road Glide: Amp: TM400Xad - 4 channel 400 watt Processor: DSR1 Fairing (Front) 6.5s -MMats PA601cx Lid (Rear) 6x9s - TMS69 Link to comment Share on other sites More sharing options...
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