My battery is 0% all the time

windows start this message appears ( the battery is weak and needs to be replaced ) and the battery stucks in 0% and the device can`t start without the AC adaptor and my battery is in not out so i can`t remove it .... my laptop is ideapad z510

it gives me
15 errors
9 warnings
28 informational
but from power management battery capacity is 43200
i don`t know what should i do

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