Battery does not charging more then 43%! PB shuts down, does not go to slee

Hello
after 223 cycles (at the moment) my battery did something weird. I was surfing internet with 50% of charge and my PB turned off
i pluged in the adaptor and when PB turned on it said that time was reset to 1970 year bla bla bla (PMU reset) after what battery charging level increased up to 43% LED became grren and my battery indicator stopped at 43% and that is it
26 month PB 12" (as shown in System profiler)
i tried to use my pb on battery again and again near 5% it switched off (but should go to sleep mode) and my date and time settings reset to 1970. Again my battery wont charge more then 43%
How could it be?
Thank you in advance

i had a similar problem not once, not twice but THREE times. the only difference being that my battery would charge to "100%" only to just switch off at 80% then a few days later 70%, 60%, 50%, 40%, etc until a point where only a few minutes unplugged caused the computer to switch off and the date reset.
for me the issue caused a dead hard drive (i assume from being hard switched off so often)
after my computer chewed through a second battery the same way, theory was devised that the logic board was messing up the power management. one replaced logic board and in a short time another battery down.
at the moment i am waiting for it to be looked at under warranty for the fourth time and honestly feel like as much as i enjoy using osx, i can't really justify another apple purchase .
i hope the road to finding what is wrong with your computer is easier than what it has been with mine.

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