Are devices with huge batteries are successful?

Previously we use mobile phones which runs 2 to 3 days without charge or even more, as the screen size was small, they don't have hardware like todays mobile has and also people only use mobile to make calls and play very descent games like snake. but now as the mobile phone screen size increased with high resolution displays and power packed hardware like CPU, GPU and more Memory the battery is become the crucial part.

There are lot of mobiles available in market which has massive batteries but none of them is successful, as all such mobiles does not provide good performance & they lags as compared to other devices. And if you see none of known brand has released device with huge battery like HTC, Samsung, Nokia: Microsoft etc..

Samsung Galaxy S5 - Hammer and Knife test

A new video comes up showing hammer and knife test on Smasung Galaxy S5 but as we know the mobile device battery are dangearous and have heard many cases where they explodes. So while performing the test he hit the back side of the device with hammer and then on battery and it kind of exploded.

Check out the vdieo