Sure thing I'll add in FAQ soon. If you do not want to solder then https://www.amazon.com/dp/B09FLDCJCB is a good option as the connector is directly compatible with paperd.ink. But it has a lower capacity.

For a higher capacity, we recommend https://www.adafruit.com/product/258 but you will have to cut and swap the connections since the connector is of the opposite polarity.

Hope that helps!