>> I wonder if it's a lithium polymer battery.

Almost certainly.


>> http://www.hobbyking.com/hobbyking/store/uh_viewItem.asp?idProduct=3D757=
2
>
> Interesting, I'll have a look around that website.
> However, if I can believe websites like this one, it's a Lithium Ion =20
> cell

"Lithium Polymer" is a subset of "Lithium Ion", so it can be both.

The important thing to figure out is whether the cell has a =20
"protection" board attached to it (usually a small pcb in between the =20
foil connectors that go into the batter guts and the wires that go to =20
the main board, with components on it), or whether it's a bare cell =20
with all the electronics on the main PCB.  Most of the LiPo cells you =20
can buy are bare, and replacing a protected cell with a bare cell =20
would be "not good."  (definitions of "not good" ranging from "becomes =20
completely discharged and can never be charged again" and "venting =20
with flames.")

BillW

--=20
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