My jbl charge 2+ quickly full charged from totally drain in just 1.5hrs?

my jbl charge 2+ quickly full charged from totally drain in just 1.5 hours? the manual says approx. 4hours, is that normal? battery is in lithium ion

my jbl charge 2+ quickly full charged from totally drain in just 1.5 hours? the manual says approx. 4hours, is that normal? battery is in lithium ion..

or:my jbl charge 2+ quickly full charged from totally drain in just 1.5 hours? the manual says approx. 4hours, is that normal? battery is in lithium ion..

Tags:drain,normal,