We have heard rumors of Samsung bringing back Galaxy Note 7 back to the market by modifying the battery capacity and design in spite of the huge fiasco caused by burning Note 7 devices that resulted in nightmare for the company and they finally decided to take it back from the market. Samsung has earlier denied these rumors that they are planning to sell Galaxy Note 7 in some Asian markets by decreasing the battery capacity, but it seems that there is some substance in those rumors. Samsung seems to have found a way to sell the refurbished Note 7 units by decreasing the battery capacity.
Some new images of refurbished Galaxy Note 7 have surfaced which indicates that these refurbished units come with a smaller battery of 3200 mAh instead of the original 3500 mAh. This decrease of 300 mAh is almost 10% of the battery size and Samsung may have tested / designed the battery to fix those burning issues.
These refurbished images also indicate an upgraded operating system with device powered by Android 7.0 Nougat based operating system instead of Android 6.0 Marshmallow. The charger is still rated as 9V 1.67 A which turns out to be a 15W charger which means support for fast charging.
Even though these images indicate the refurbished Note 7 with smaller battery, yet it is not an easy task to sell them to public as Samsung will need to get necessary approvals from different governments which appears difficult thanks to the fiasco of original Note 7.