Bernard Tyers wrote:
>
> Hi all,
>
> I have a Siemens SL45 battery here that seems to loose charge in about
> 1/2mins, even after a full charge time. I want to fully discharge this
> battery (Lithium Polymer 540mAh, 3.6V) fully to see if the battery is
> FUBAR'ed or can be charged again.
>
> I am contenplating just hooking it to a 10R 25W resistor (this won't
> damage it, I don't think), and leaving it for a few hours.
>
> Is there any better (read quicker) way, that won't damage the battery. I
> don't know if there are any "smart" components there..


I'd bet the battery is FUBAR as you suspect.
Normally using a 3v torch light globe is a
good way to discharge batteries quickly and
safely. I have an old commercial NiCd discharger
that is a light bulb in a box.
-Roman

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