[Shabani88]

Hey guys I’m looking to switch between 12v to 18v then 24v with 2 separate switches, so I have 3 battery’s, 2 of them are 6v 12ah ,and the other battery is 12v 12ah. I’m very familiar with wiring I did a set up, in my sons jeep to go from , 12v to 18v with a 30/40 amp automotive relay, and a 25-30 amp switch 12gag wire, but I can’t figure out out how inclule the last battery?? If any one can help that would been very appreciating

[CJB]

I haven't really thought it through in terms of your specific application, but this may help...

https://www.freewebstore.org/cjbperformance/18v_Interface_Board/p4125412_16292867.aspx

[Shabani88]

Thanks for All the help this add on is perfect for what I need to do. But I guess what I’m looking for is more like a three speed so 12, 18 than 24

[CJB]

It would be possible to use both my Turbo Timer and 18V board - have the timer automatically kick it from 12 to 18 after a time delay and then have a button for 18 to 24... Or you could go the two button route I suppose but that sounds like a lot to mess with while trying to steer too.