Hi Sean,
It is a 2S2P configuration 8.4V 6400mAh.
Thanks
        Luis
On 26 Sep 2013 01:55, "Sean Breheny" <shb7@cornell.edu> wrote:

> Hi Luis,
>
> Are the cells in series or parallel?
>
> Sean
>
>
>
>
> On Wed, Sep 25, 2013 at 10:52 AM, Luis Moreira <
> luis.moreira1575@googlemail.com> wrote:
>
> > Hi Guys,
> > The battery pack for my Chinese bike light as just failed and I decided
> to
> > take it apart. It is made up of 4 x 18650 cells. They claim 6400mAh but=
 I
> > think not... Any way, I am not looking into repairing it but I find the
> > protection pcb on the pack very interesting but unfortunately I can not
> > find any info on the ic's on it. I presume that they are two mosfet
> > packages and one supervising ic but can't get no info. The numbers on t=
he
> > two packages which look like mosfets are 8205 and 14T1G and the
> supervisor
> > ic is a 6 pin package with 3Z98 on it. I am not sure of the last digit =
as
> > it is a bit faded it could also be a 9 or a 5.
> > Any info would be apreciated.
> > Many thanks
> >           Luis
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