[ltp] battery dead?

[Kelvin KAN]

I have the same battery problem with my 600E.  I believe it was not due
to Linux.  The battery capacity was getting shorter and shorter, then
finally flashing amber w/o being charged for a day.

I remember someone also in this mail list suggested it was due to the
voltage dropped below the minimum required by the microcontroller within
the battery.  The fix was to apply 6V and 1/10 current of the mAh spec
of the battery to the +/- terminus, to wake it up.

I've never done that due to the fact that a constant-current power
supply would be comparable with the price for a new battery.

Has anyone got a cheaper source of constant-current power supply?  Like
the circuit of building a fixed-volt&amp one (because we know we need
exactly 6V/0.18A) using very cheap passive components (assuming the
unregulated power is from the existing TP600 16V power supply). 

Thanks,
-
Kelvin.

Xun Cheng wrote:
> 
> After a resume from a successful hibernation under
> linux, my battery keeps reporting 0% charge. I'v put
> on AC power for half a day and the battery light
> keeps flashing every several minutes. It seems
> no charging has been done.
> 
> Any suggestion other than buying a new battery?
> 
> Some facts:
> . It's a Thinkpad 600X.
> . It's redhat limbo beta.
> . I seldom use it without AC power.
> . I removed AC power before hibernation (otherwise
>   it won't hibernate).
> . The linux is installed on the ultrybay second HD.
> . The hibernation partition is on the internal
>   first disk which was mostly spined down until
>   hibernation time.
> 
> thanks a lot
> xun
> 
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