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Author Topic: 24v  (Read 5367 times)

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Offline coxy

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24v
« on: February 24, 2015, 10:25:34 PM »
was just wondering how to hook up 4 batteries for 24v I cant seem to get it through my thick head  they are 12v batteries   and how many can be hooked together to make 24v I know 2-4

Offline Southside

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Re: 24v
« Reply #1 on: February 24, 2015, 10:27:17 PM »
I will look in my excavator battery box and take a picture for you tomorrow if nobody chimes in here before. 
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Offline jamie

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Re: 24v
« Reply #2 on: February 24, 2015, 10:39:56 PM »





Now dont go trying this without a bit of research.... no guarantee's  ;D

Offline coxy

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Re: 24v
« Reply #3 on: February 24, 2015, 10:54:37 PM »
(Image hidden from quote, click to view.)


(Image hidden from quote, click to view.)

Now dont go trying this without a bit of research.... no guarantee's  ;D
that's 48v isn't it

Offline sawguy21

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Re: 24v
« Reply #4 on: February 25, 2015, 12:02:09 AM »
No. Each pair is hooked in series for 24V but the four are parallel (positive to positive, negative to negative). This doubles the amperage which is a good thing, the voltage is still 24. Clear as mud? ;D
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Offline pine

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Re: 24v
« Reply #5 on: February 25, 2015, 02:21:13 AM »

(Image hidden from quote, click to view.)

Now dont go trying this without a bit of research.... no guarantee's  ;D

Effectively correct

Offline John Mc

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Re: 24v
« Reply #6 on: February 25, 2015, 08:29:22 AM »
Jamie's diagram is correct. To get 24 volts from four 12V batteries, you hook up a pairs of 12 volt batteries in series (positive to negative, which is the top to bottom connection in his diagram). then hook these two pairs up in parallel (Positive to positive, and negative to negative - the wires along the top and along the bottom in his diagram).

You should use the same size and type of batteries (don't mix gel, agm, and wet cell). You should also charge up all the batteries before connecting them:  If you hook up a partially charged battery in parallel with a fully charged one, the full one will try to charge up the partially charged one; with nothing in there to limit the current, this can cause real problems (overheating battery, off-gassing hydrogen - which is explosive, etc.).  Once charged and hooked up, batteries in parallel will tend to keep each other equalized (though for best life, it's still a good idea to charge them each individually every once in a while).
If the only tool you have is a hammer, you tend to see every problem as a nail.   - Abraham Maslow


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