SchertzAutoRacing

Anyone know how to wire the altenator to a switch, so it can be turned on/off?? I have the factory altenaor on my 5.0, and need to bypass the harness and run it directly to the batteries or marine switch (batt 1, both, Batt 2)
thanks,
Art

brentloftis

Here is a diagram of the charging system:
http://i43.photobucket.com/albums/e4...ing_system.gif

Been thinking it over and not sure how you would direct wire in and charge both batteries with the alts internal regulator. I can see a switch to change from A to B, or wire the batts in parallel, but note on having both wired in at once.
What are you doing that will require the spare?

SchertzAutoRacing

the 5.0 is in my race truck, i need two batteries for the fans, lights, and trans coolers

mjr46

all you need to do is use straps to connect the two batteries together and run the charge wire to the one battery

Chaoss84GT50

wont that cause the car to run on 24 volts??

mjr46

no, if you wire them in series then yes but in your case you need to wire them in parrallel which will double your capacity but voltage output will remain at 12.6 v

mjr46

here this should help you understand/ do what you need to do to your ride
http://www.otherpower.com/otherpower...ry_wiring.html

SchertzAutoRacing

i understand wiring in series and parallel, i am trying to figure out a way to avoid over charging the first battery in line. kind of like an inline voltage regulator between the two batteries

Chaoss84GT50

maybe if you wired your batteries like this and throw your switch in where you need it. I dont know if the alternator could handle this setup but if it did it should charge both at the same rate. You may have to go up to a heavy duty alt. It may work but I have never tried it.

Note: I accept no liability if anyone tries this, it is just an idea and I have never tried it. Please do not blame me if something bad happens.



If anyone knows a better way or needs me to change the drawing to make a good actual representation I can just let me know what to do.

mjr46

your not gonna overcharge the first battery!!! how do you think an elec golf cart with 10-15 batteries survives being charged??