Very very. Decue this battery that is not an original but Chinese. When you charge your phone GN2 with this battery when your phone will be loaded and you unplug your charger on and the Phone yet loaded S OFF SUDDENLY ?? ILFAUT OPEN THE PHONE THEN LEAVE THIS BATTERY AND THEN reinsert. YOUR PHONE AGAIN. !! N Bizarre is not it ?. I bought another battery and that it conforms unlike the latter with all the operations I have to do for MY PHONE AGAIN.