Hello developers... After coming down to 15%, my J8's battery starts decreasing at a double faster rate and dies out. Why does it degrade so fast after 15% ??  BTW thanks for the software update that was released for J8 a few days ago !! 

Hello Samsung Developers...Please release a software update for J8 as it is still running on June's Security Patch up level... Also add some significant changes in the overall interface of the phone....