How normal is the battery health of Master Lu's notebook?

Master Lu's notebook battery is more than 80% healthy and normal. According to relevant public information, the normal value of notebook battery health mainly depends on the loss degree of notebook battery. Under normal circumstances, the health value of notebook battery should be above 80%. If the power is insufficient, or the battery capacity is less than 80%, the battery can no longer be used, and a new battery should be considered.