Module with 4x Samsung INR21700-50E 5000mah Cells

This is the best way to get one of the best cells on the market. These modules are overstock from modems. Each module has 4 Samsung INR21700-50E cells inside. They are one of the best 2170 cells on the market.

With the 4 cells each module comes out to 70.56wh (3.6v x 4.9ah x 4 cells)

You can pry these open at the seam to remove the cover. A good pair of cutters will help and just start at the corners and keep prying up. Took about 1 minute to get the one off for the photo.