[q] mophie equivalent note 4???? topic

hello all. I am new to the forum..I have the Samsung Galaxy Note 4 and had the note 3.

As you know I have been unable to get the Mophie pack charger case which I love with my iPhone!

Is there an equivalent for the note 4?

I bought something on Amazon for my note 3 but it required that I take out the stock battery and use their battery and it came with its own case and it made my phone ridiculously large! It looks silly!

Is there anything else that's similar to the Mophie for the notes 4??

Any help and links would be greatly appreciated. Thank you