While OnePlus CEO confirmed that no more information will be revealed about OnePlus 2 until launch event, battery information was confirmed by OnePlus team on Ask Me Anything on Reddit. They confirmed that OnePlus 2 will come with 3300 mAH battery.
OnePlus team also confirmed that camera quality is also a high priority task for them. So, OnePlus 2 will also come with improved camera performance. Company also confirmed that three different variants of the smartphone will be available targeting three different markets. Difference in these variants will network related to support network bands of that region.
OnePlus 2 is scheduled to launch on 27th July in a VR event. It will come with improved Snapdragon 810 SoC, 4 GB LPDDR4 RAM, full metal build, fingerprint sensor faster than TouchID, USB Type-C port and Oxygen OS build. Good thing is that smartphone will come with less than $450 price tag.
OnePlus 2 will also be sold via invite system. Company confirmed that they have improved the invite system. So, we will have to wait for the availability of the smartphone to see what has been improved.