Why did my laptop's battery capacity drop suddenly? Even the BIOS shows a warning about low capacity. - Quora
SOLVED: Battery percentage suddenly drops from ~60% to 7% - MacBook Pro 13" Retina Display Late 2012 - iFixit
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BQ40Z50 - Full charge capacity drops immediately to 0 on discharge - Power management forum - Power management - TI E2E support forums
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