While not too much of an increase, a 3,450mAh battery should be an enough to provide battery life that at least equals the Note II's, despite hardware that's much more powerful, including a Full HD display. With the proper optimization, we might see even better mileage than the Note II can provide, but again, even battery life equal to the second-generation Note will be something we'll welcome with open arms.
An alleged prototype Note III shown along with battery and two SIM slots
The Galaxy Note III is expected to sport a 1080p Super AMOLED screen anywhere between 5.7 to 6-inches in size, an octa-core Exynos 5420 or quad-core Snapdragon 800 processor depending on market, 3GB of RAM, 13-megapixel camera with optical image stabilization, LTE-A connectivity, and Android 4.3 Jelly Bean. The device will be formally announced on September 4th at Samsung's UNPACKED event.
