Starting with 12v running with 6v any one have a diagram/schematic of system using two optima 6v batteries in a 6v system. Starting done with the two 6v batteries ( how ever they are hooked up) and running with the one 6v battery. the system I saw, for a brief time only, used original start push button and seemed to use only ONE solenoid. It looked cool but did not see how it was wired.
Fredeirc |
Re: Starting with 12v running with 6v I have two 6 volt batteries in my 36 Ford 5W Coupe that does what you are describing. It starts on 12 volts to the starter only and all other circuits are 6 volts.
This allows charging the batteries in parallel at 6 volts and that was the only change. There is a way to use two 6 volt solenoids to do the same thing as the use of a Orpin switch. I bought the switch a long time ago at J.C. Whitney, but it probably is available on line. It also includes wiring diagrams for use with Ford 6 volt systems that use a ground type starter button. |
Re: Starting with 12v running with 6v This was something that we did on VWs in the 70s and 80s. It uses a solenoid like Gary is referring to.
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Re: Starting with 12v running with 6v Gary thanks I will look it up and do some research
Frederic |
Re: Starting with 12v running with 6v |
Re: Starting with 12v running with 6v And it only costs $595.00 :eek:
Bob |
Re: Starting with 12v running with 6v They have a wiring diagram!
I don't remember what the VW series-parallel solenoids cost, but I'm sure they weren't too expensive. But no idea if they are still available. |
Re: Starting with 12v running with 6v The key is that the 12-volt capability is isolated from the 6-volt system. Since a lot of old Fords original source for 6-volt power was at the battery side of the start relay, isolation would require that to be relocated to a 6-volt source with the starter relay being the only one connected to the 12-volt source. It would still have to be positive ground and the 6-volt system power connection would have to be made at the primary battery source. The secondary battery would be connected in series with the primary and the negative terminal of the secondary would only connect to the starter relay. The starter relay would be better off if it were rated for 12-volts but a stock relay would still work for a while at least.
I have a battery cart that uses two 12-volt batteries to make either 12-volt or 24-volt (both batteries in series) connections. It needs no relays to do that but does need to be connected correctly for both to work properly. The 12-volt side is just connected to the one battery. It requires batteries with a bolted type post in order to make two connections at a single post easily. |
Re: Starting with 12v running with 6v 1 Attachment(s)
Here is an idea I was exploring a couple of years ago.
It might work for you. Bruce |
Re: Starting with 12v running with 6v I'm interested in why you feel the need?
Is there an issue that your trying to resolve? Martin. |
Re: Starting with 12v running with 6v Quote:
Think we were talking about a 6V system that only applied 12V to the starter, anyway that was the type of system we used on the VWs. The idea was (on the VW) to up the starting voltage but run on the normal system. The 12V was used for starting only. |
Re: Starting with 12v running with 6v Quote:
Charlie Stephens |
Re: Starting with 12v running with 6v The system I proposed used 12 volts for starting and lights, running on 6 volts.
Yes 12 volt alternator neg ground. Bruce |
Re: Starting with 12v running with 6v Quote:
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Re: Starting with 12v running with 6v Go 12 volt or 6 volt. Nothing wrong with 6 volt if everything is as it should be. I have 12 volt because of some modern stuff. Seem the buzz word is 8 volt or 12 volt is needed to solve problems. I think the reason is because the they not understand problems they are having. Solve your problem not bandaid it.
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Re: Starting with 12v running with 6v I've read opinions saying that the battery bank will have short life because all of the discharge is coming from one battery and the alternator is overcharging the secondary battery trying to keep the primary battery charged. I don't have any experience with a system like this, but I support the "either-or" approach. It seems a lot less complicated to use one voltage throughout the car.
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Re: Starting with 12v running with 6v I also agree straight six volt would be the best, but the OP asked and I tried to help.
Bruce |
Re: Starting with 12v running with 6v All items on the car are stock 6 volt items. It just gives the starter a 12 volt kick. The "Orpin" switch (solenoid) does the job. Just finding one that does not cost an arm and a leg !!! Jseery mentioned something about VW's but I dont know what they used this for.
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Re: Starting with 12v running with 6v 1 Attachment(s)
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Re: Starting with 12v running with 6v 1 Attachment(s)
There is an installation manual for sell on ebay now. Not sure what good it would do without the solenoid! The manual is 29 pages and covers about every car there was at the time.
Another listing for a switch: auction is for a BROCKWAY TRUCK NEW OLD STOCK GENUINE DELCO REMY SERIES PARALLEL SOLENOID STARTER SWITCH. This allows you to use 2 batteries for starting, then automatically switches back to 1 battery for running. This came from the Brockway factory in Cortland NEW YORK when they closed in 1977 . Not sure how many years and models this fits . Approx. 4 " tall , 3 1/4 " diameter . Possibly fits other tractor trailers of the time . this is a VINTAGE new part, not a reproduction. |
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