I wasn't able to find any guides specifically for the Note 4, but there are several available for the 4X. From what I can see on the GSMArena website, the main difference seems to be support for CDMA networks, upgraded Bluetooth and slightly lower cost. I'd suggest following one of those guides, but be prepared as it's always possible there are minor differences so don't let that throw you. Here's a link to the iFixit guide.
[guide|136431|Xiaomi Redmi Note 4X Battery Replacement - iFixit Repair Guide|new_window=true]
While you're replacing your battery, take lots of pictures and use those to make your own guide for the Note 4 so people who come after you have a set of instructions to follow.
[link|https://www.ifixit.com/Guide/new|Create a new Guide - iFixit|new_window=true]
It's actually pretty easy to do and fun as well!