As the smartphone user’s activities increased on their phones, the companies started installing 6000mAh batteries in mobile phones. So the user can get longer battery life – 2-day estimated. 6000mAh battery provides 29 hours of video playback, over 131 hours of music playback, and 49 hours of voice calls or it may vary on user tasks. 6000mAh battery smartphones support fast chargers so this large phone battery could charge quickly. The following are the smartphones with a 6000mAh battery. Have a look!