How to Identify thinkpad's Nine-cell Battery as Original Battery

As long as the THINKPAD battery management software information is consistent with the battery identification information, the voltage and current capacity are consistent with the bar code number, and the production date is consistent with the first use time.

Distinguishing whether the battery is good or not mainly depends on the design capacity, which can be changed. If the battery is changed, the charge and discharge will disappear soon or the charge and discharge capacity is different from the design capacity. I bought it second-hand. I can't use the battery. I have to use battery power. The first use time is unchangeable, which is also an important parameter for decoration.