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Run plow off extra battery/or single yellow top

Discussion in 'Western Plows Discussion' started by trod81, Jan 23, 2014.

  1. trod81

    trod81 Member
    Messages: 73

    I replaced my battery in my escort and took the old one into orielleys to have them charge and test it. It is now fully charged and ready to go. I also have a yellow top ultimate battery. What is the better set up? Putting all plow electrical on my escort battery.....or installing yellow top in my truck and hooking plow up to the yellow top also? Thanks
     
  2. dieselss

    dieselss PlowSite Fanatic
    Messages: 10,930

    What cca is the other batt?
    And you cannot mix acid and gel batts together just fyi
     
  3. trod81

    trod81 Member
    Messages: 73

    I think 500. We'll I have an acid battery now In my truck. So, if I hooked all plow up to 500 cca battery I should be ok ?
     
  4. trod81

    trod81 Member
    Messages: 73

    Lights dim pretty bad now
     
  5. dieselss

    dieselss PlowSite Fanatic
    Messages: 10,930

    What make and year trk. That 500 cca seems pretty small
     
  6. trod81

    trod81 Member
    Messages: 73

    It's a 2000 chevy. I will be leaving battery that is in there now. 500 cca battery from my escort will be an ADDITIONAL battery for plow
     
  7. dieselss

    dieselss PlowSite Fanatic
    Messages: 10,930

    Unless its the sane size,,,which I dont think it is,,,,its gunna hurt more than help
     
  8. mishnick

    mishnick 2000 Club Member
    Messages: 2,243

    I am confused! Two 12 v batterys will always b better than one regardless of sizes. And why can't he mix gel and acid? Both 12 v so what's the problem?

    The more cranking amps u have the better off you r. Hook them together in parallel, that's the only option. U can't isolate plow from truck unless u have two alternators.
     
  9. goel

    goel PlowSite.com Addict
    Messages: 1,079

    Because the truck battery will get sucked down to the 500 cca battery and then it's not going to run the truck
     
  10. dieselss

    dieselss PlowSite Fanatic
    Messages: 10,930

    I'll disagree. 2 good same size ( within reason ) will be fine. Different sizes within reason are bad b/c the smaller batt is not rated for the higher cca. So the bigger batt is overloading the smaller batt causing the issues.
    As far as gel and liquid filled, to answer right now I cant, but on all the gel batts it says not to. I can't remember the exact issue but I heard it at one point
     
  11. mishnick

    mishnick 2000 Club Member
    Messages: 2,243

    I still call bull#### on the connecting two different sized batteries together. Take ten 12V batteries of any CCA and hook them in parallel, you just add up the CCA rating and that's what you get out. If you look at the plates of a battery you could say that 1/4 of the plate is a small battery and the other 3/4 of the plate is a big battery, but they are connected together, no damage not problem! That's why you can boost a big truck with a little car.... well not boost but charge.... Try it sometime. Hook your dinky little car up to a dead 12V highway tractor and leave the car running (connected) for a half hour (fast idle helps) and then start the truck. All 12 volt systems charge at the same relative voltage. The only difference is the CCA of the battery and the output of the alternator. But a 40A alternator will still charge 4 1000 CCA batteries, it just takes a while. And if you hook up the tractor to a little 12 V car it will boost it, and or charge it just fine with no damage. You could burn out the starter if you crank too long but that's a whole other story.

    "Different sizes within reason are bad b/c the smaller batt is not rated for the higher cca" It doesn't matter if one battery is rated lower than the other??? The small battery will put out what it is rated to produce and the big battery will put out more?? One has nothing to do with the other.... Think about two water tanks, a big one and a small one. Both are 12 feet deep and have the same water pressure as a result but one holds 1000 gallons while the other holds only a hundred. Connect them together and no water will move between them. Connect a garden hose in the middle of the pipe joining them and the will both put out what they have. Electricity is basically the same, pressure, gallon's per minute = voltage and amperage.

    Re gel batteries.... If I ventured a guess perhaps there is a slight difference in output voltage. Like the difference between dry cells and lead acid batteries. Perhaps there is a 1/4 volt difference, or less, which would cause current to flow between the two. I have to look into that, it may be the case....
     
    Last edited: Jan 23, 2014
  12. dieselss

    dieselss PlowSite Fanatic
    Messages: 10,930

    Yea damage and yea problem.
    Little plates over time will not handle the bigger cca ratings. I will say very good example btw.
    My m/c batt rating at about 100 cca, hooked up to my trk to be jumped starts expanding and bursts, why?
    The other point I/others were kinda trying to say. If one is good and the other is bad, the bad one will rob the good one.
     
  13. mishnick

    mishnick 2000 Club Member
    Messages: 2,243

    The CCA of the battery makes no difference. Hook a bad 800 to a good 800 and one will destroy the other. Hook a good 100 to a good 800 and u have a good 900. End of story no problem
    Why would u want to install a bad battery? The guy said he had it charged and tested. Who said a bad battery was being installed?
    What is the best setup he asked. I say install the best batteries u have (highest CCA) and connect the plow directly to the larger one of the two if possible. They will b hooked in parallel via large wire so it won't make a lot of difference to ehich one u connect to.
     
  14. mishnick

    mishnick 2000 Club Member
    Messages: 2,243

    Ok guys, time to eat my words and apologize profusely... Deiselss was absolutely correct about mixing gel and led acid batteries and I was wrong %$#&^%$. I spoke to several battery experts and they say that the two battery types require different charging voltages, do not connect in a vehicle together. My bad, I am an idiot and I am hiding my face in shame as we speak. So very sorry for the attitude and thanks for making me do a bit of research. Will never make this mistake again.....