PB Battery recognized, yet not recognized, by system


so travelling last week , during trip home didn't use computer couple of days. battery lost charge completely, down 5% when closed , machine shut off when got using again few days later.

anyway, plugged in machine yesterday , noticed battery wouldn't charge. little ring on pb charger never turned orange , icon remained @ 0% plug indicator. clicking on icon revealed calculating time until full.

waited while , nothing changed. while, mean few hours. , nothing. tried run pb battery updater, , told battery up-to-date, got notice telling me eject , reinsert battery. thinking battery paperweight, ran coconutbattery, , came informing me had 84% capacity remaining (which expected see).

inserting older batteries (i rely on battery power lot more mains) revealed recognized fine, if thay down 71 , 41% capaciaties.

guess have 2 questions: a) happened , b) do?

thoughts great.
 

you may have discharged battery below reserve power.

try pmu reset , insert battery , let computer rest overnight (not powered on). check again in morning , see if glow ring amber or green.
 


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