I had the DINC with the 2150 battery and I was lucky to get 8 hours out of it. I"m at 8 hours now on my X with the same apps and same setup and I have 50% left...
I get far better than that on the stock 1300 Mah battery, not sure what was wrong with your Dinc phone...or bad apps maybe(?)
*My Dinc battery life has gotten substantially better after the charge/discgarge cycles I have put it through the last month.
Hopefully the Moto X will get better life as the battery is cycled over the next month, we'll see. The Dinc was down to 83% tonight while the Moto X was at 40% battery.

(Both phones had the same useage time and came off charging with full batteries at the same time)
 
	
 
 
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