power manager problem (again)

[Fabrizio Venerandi]

Hi,

I have a little problem with my powerbook duo 280c/2300c.
The duo do not recarge the battery over 13.73V. The duo uses the 
battery, but when it have to recharge it, it fails. I need to use 
another duo, a 270c to charge the battery at all.
The battery recondition utility do not work (screen white with 
battery icon jumping for 9 hours...) and it is not a battery problem, 
cause my 2 battery works fine with the duo 270c (and the battery 
recondition utility works fine with the duo 270c).
If I charge the battery with the duo 270c, the battery works fine 
with the 280c/2300c, but when the battery is "empty" the duo 
280c/2300c charge it only a little.

I try to reset the power manager in soft way, and hard way, toggling 
the battery, ps and internal battery. Nothing changes.
I have to add: 1) usually after a power manager reset the duo start 
with the brightness very 'white', out of scale. I need to reboot to 
have a normal contrast. 2) usually, if I put the brighness to the 
max, the screen 'flips' a little when the duo access the hard disk.

There is something I could still try?
I think the internal battery is dead: this could be a related problem?


Thank you!


f.
-- 
http://www.fabrizio.venerandi.net