How is Samsung Galaxy Note 3 battery life? In short, great. With 3,200 mAh battery, it can’t go wrong, right? Yes if the software and hardware are performing well. Galaxy Note 3 is loaded with latest Android 4.3 Jelly Bean. Hopefully, Android 4.4 KitKat is coming out soon. So no issue with software part. As for hardware, Qualcomm Snapdragon 800 processor with 28nm HPm process technology helps to save battery life too. So here is the result that I have on SM-N9005.