Noob battery questions...

[Tank 'm o'Niel]

Hi - forgive me I'm a mechnical guy with limited electrical knowledge.: )

I noticed cell phone batteries have small circuit boards at the end of the
pack. What is the purpose of the board?

I am being tasked with a project using arrays of larger lithium cells - I
think there are 12 per pack. Each array comes with a circuit board at the
end as well. I noticed on the circuit board there looks to be a small
buzzer or something? Am I correct in seeing that?

If I wish to disassemble the packs to make larger arrays - could I have a
circuit board built to handle the larger array? Or is it more advantageous
to have a bunch of smaller arrays/packs than one large one?

Lastly, are battery packs assembled in series or parrallel and what is the
thining behind one over the other?

Any help appreciated -

[JB-LSMO]

Tank 'm o'Niel wrote:
> Hi - forgive me I'm a mechnical guy with limited electrical knowledge.: )
>
> I noticed cell phone batteries have small circuit boards at the end of the
> pack. What is the purpose of the board?
>
> I am being tasked with a project using arrays of larger lithium cells - I
> think there are 12 per pack. Each array comes with a circuit board at the
> end as well. I noticed on the circuit board there looks to be a small
> buzzer or something? Am I correct in seeing that?
>
> If I wish to disassemble the packs to make larger arrays - could I have a
> circuit board built to handle the larger array? Or is it more advantageous
> to have a bunch of smaller arrays/packs than one large one?
>
> Lastly, are battery packs assembled in series or parrallel and what is the
> thining behind one over the other?
>
> Any help appreciated -
>
>

Hmmm, have I missed some connection to RC cars here? Don't recall ever
seeing cell phone batteries in an RC car or truck. Must be that the
poster is hoping to draw upon the vast cache of knowledge that RCer's
have about everything. I hope he finds his answer.

[kenji]

In article <479e7215$0$4951$4c368faf@roadrunner.com>,
JB-LSMO <banks_jim@*N*O*hotmail*S*P*A*M.com> wrote:

> Tank 'm o'Niel wrote:
> > Hi - forgive me I'm a mechnical guy with limited electrical knowledge.: )
> >
> > I noticed cell phone batteries have small circuit boards at the end of the
> > pack. What is the purpose of the board?
> >
> > I am being tasked with a project using arrays of larger lithium cells - I
> > think there are 12 per pack. Each array comes with a circuit board at the
> > end as well. I noticed on the circuit board there looks to be a small
> > buzzer or something? Am I correct in seeing that?
> >
> > If I wish to disassemble the packs to make larger arrays - could I have a
> > circuit board built to handle the larger array? Or is it more advantageous
> > to have a bunch of smaller arrays/packs than one large one?
> >
> > Lastly, are battery packs assembled in series or parrallel and what is the
> > thining behind one over the other?
> >
> > Any help appreciated -
> >
> >
>
> Hmmm, have I missed some connection to RC cars here? Don't recall ever
> seeing cell phone batteries in an RC car or truck. Must be that the
> poster is hoping to draw upon the vast cache of knowledge that RCer's
> have about everything. I hope he finds his answer.

oh yeah there's a real treasure of info and intrigue in
rec.models.rc.land