Re: Question About Series vs. Parallel Circuit, DC

OK, I want to be sure I got this right. I did print one of the pages
offered by another respondent; but to ensure that I understand (I
certainly don't want to double the voltage and burn up the motor!), I
would think that the following would be correct:

1. If I take another set of batteries, connect them just as they would
be connected in the scooter (this is what I am referring to, by the
way), I would have two additonal batteries, connected, but yet to be
connected to the unit.

2. At this point, would I merely connect the two positive poles
together, and then the two negative poles together --- and assume that
this would be the correct configuration?

3. If I were to do the opposite, and connect the negative pole of my
first set of batteries to the positive pole of the second set, and do
the same for the opposite pole, would this be the correct manner, or is
number 2 (above) the correct means? Here, it is clear that I know not
the difference between the series and the parallel configurations; but,
I know "haste makes waste," and in this case, a "dead motor," which is
what I don't want.

Please advise; I appreciate the responses thus far; they have been
helpful, indeed!

Thanks,

Mark
chuck wrote:
mea305 wrote:
Suppose I have a 12 volt motor that operates on two 6 volt acid-free,
lead batteries; I was thinking that perhaps I could put to use at least
two extra batteries I have in an effort to increase the period of time
for power available on the motor. I am not certain, as I forgot, about
the differences between using a parallel circuit vs. a series circuit,
or, whether this is actually possible without causing harm to the
motor....

Therefore, could anyone tell me, first, whether this would be a good
idea; and then, if it would be, how I would configure the batteries to
ensure that I do not deliver more than the alloted 12 volts to the
motor?

I would appreciate it.

Thanks,

Mark


Not a bad idea at all. Connect the two spare 6 volt batteries in series
to make another 12 volt combination and simply place that in parallel
with the existing series pair of batteries. Providing the batteries
don't discharge each other (which is possible, but not highly likely)
you should be doubling the possible motor running time as you desired.

Chuck

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