hummermark Posted December 11, 2021 Share Posted December 11, 2021 Hi is there anyone running a 6 volt regulator that's been adjusted up to be used on a 12volt system? if so has it been reliable? I have been told some jeep owners do this when converting from 6v to 12v systems. Quote Link to comment Share on other sites More sharing options...
AmmoMan Posted December 11, 2021 Share Posted December 11, 2021 I did it on mine, adjusted the screws to increase the charge voltage but after a year or so the regulator just disintegrated due to age and corroded parts so I dropped in a solid state regulator and that's also been fine. Quote Link to comment Share on other sites More sharing options...
jenkinov Posted December 26, 2021 Share Posted December 26, 2021 I have continued to run. A 6 volt regulator and system on it jeep . I bought i high output 6volt battery from a specialist and it's been fine for 19 years ..the battery whi!st expensive has shown its value by lasting c10 years And still going Jrnkinov Quote Link to comment Share on other sites More sharing options...
hummermark Posted December 26, 2021 Author Share Posted December 26, 2021 So it is possible and reliable Quote Link to comment Share on other sites More sharing options...
earlymb Posted December 27, 2021 Share Posted December 27, 2021 JMP is selling this circuit board which goes into the original regulator housing: https://www.joesmotorpool.com/ford-gpw-parts/977-joe-s-motor-pool-early-6-12-volt-regulator-circuit-board-for-ford-gpw-willys-mb-slat-mb?search_query=regulator&results=12 I have no experience with it, but it seems you can adjust from 6V to 12V with a switch. Maybe it's an option? Quote Link to comment Share on other sites More sharing options...
jenkinov Posted December 27, 2021 Share Posted December 27, 2021 When I got my jeep I was not happy with starting it on 6v . I considered changing it but then was. Advised to consider a high output 6v battery . I approached a specialists Lincon batteries who builds a high output 6v battery. The jeep was transformed and I have continued with this throughout my 19 years of ownership ..during that time I have only had 2 batteries... I would recommend sticking with 6 volt Jenkinov Quote Link to comment Share on other sites More sharing options...
andym Posted December 28, 2021 Share Posted December 28, 2021 "High Output" presumably means high capacity in terms of Ampere Hours? Andy Quote Link to comment Share on other sites More sharing options...
REME 245 Posted December 28, 2021 Share Posted December 28, 2021 Optima Batteries do not look period but are designed for starting under difficult conditons. Quote Link to comment Share on other sites More sharing options...
earlymb Posted December 28, 2021 Share Posted December 28, 2021 Someone in the US is making repro shells of an original WW2-era jeep battery, in which you can put an Optima battery. Check the G503 forum for more info. That being said, I think proper earth connections and the original gauge cables should go a long way with making 6V to start reliable. Quote Link to comment Share on other sites More sharing options...
radiomike7 Posted December 28, 2021 Share Posted December 28, 2021 6 hours ago, andym said: "High Output" presumably means high capacity in terms of Ampere Hours? Andy More likely lower resistance to give higher CCA. 1 Quote Link to comment Share on other sites More sharing options...
7VHU Posted December 28, 2021 Share Posted December 28, 2021 If it starts ok on the handle, 6 v will be fine (just gives you the flat battery feeling, even if it isn’t). makes things more tricky finding spares and harder to find a jump start. originality vs practicality (driving an 80 year old truck) Quote Link to comment Share on other sites More sharing options...
andym Posted December 29, 2021 Share Posted December 29, 2021 21 hours ago, radiomike7 said: More likely lower resistance to give higher CCA. Agreed, it could be either. That's why it's a pretty meaningless term, really. Andy Quote 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.