I bought xiaomi black shark 3 and was surprise that the after only 3days use i observe that the battery life will only last for 1day in normal use and not with heavy talk time. I return to service center and what they did was just also observe the unit and doesnt have any tools to tests the parts are still within the specifications,I did ask the technician if the 1 day battery life of black shark 3 is within the normal specifications of xiaomi and he said yes.I dont beleive that because before i buy the product ive red that battery life of black shark 3 will lasts longer since its trademark was a "gaming phone" so i was thinking since i am not a gaming user it will add more on my black shark 3 battery life.Who can tell me now the true specification of black shark 3 if xiaomi itself doesnt know it???