battery percentage is displayed wrongly

I recently replaced a new battery, the battery now does not show low battery percentage warnings and just abruptly turns off the computer when the charge is about 20%, and when I turn it back on, it starts from 0% and I recognize the battery was all drained out. Why is this wrong percentage being read in my new battery? Is this a calibration problem or I should exchange the battery because it is damaged? If this is a calibration problem, are there ways to solve this?

Question by juztcode on Super User, licensed CC BY-SA. We show a short excerpt and link to the original thread as credit.