A custom dual SIM Galaxy Note 2 model packs a lot more memory and battery life than your average supersized smartphone, although such features come with a high-cost and can affect the looks of the device.
While smartphone makers are constantly trying to make devices
But once he replaced the 8500mAh battery pack with the ZeroLemon model, he automatically fixed the overall appearance of the device, even though the handset is definitely bulky (see images below):
In case you are interested to customize your own Galaxy Note 2 like that, you should check out the thread available at the xda-developers forum, where explicit instructions are given alongside some answers to potential questions.
Via: Android Authority