to make it clearer, connectors with the metal "tongue" are BAD ; those with a machined part that moves up or down are GOOD (the former are OK when one only connects a wire once and leaves the thing as-is, while the latter are good when cables are changed from time to time)
also, X2 should not have both grounds on the same terminal ; this kinda ruins the hotswap definition : please use a 4-terminal connector. also, see this excerpt from comment in issue #125:
Connector X2. Site #2 - 2 cells Li-Ion batteries, serially connected. Site #1 - another power source with voltage magnitude higher than the batteries voltage. This source will power the Pi during the batteries charge. The voltage magnitude should be at least 2V higher than the batteries max voltage, e.g. 12V DC wall adapter, or some solar panel or another battery pack.
On the PCB, please add labels for:
are you trying to get people to burn their MoPi or get unnecessarily confused?
also, better connectors would be a plus: they should accept thicker wires and be of a better quality
BAD: https://a.pololu-files.com/picture/0J3614.1200.jpg?7c8cd9186ed12b602be8aa2d3204108f GOOD: https://fr.aliexpress.com/item/33012490287.html
to make it clearer, connectors with the metal "tongue" are BAD ; those with a machined part that moves up or down are GOOD (the former are OK when one only connects a wire once and leaves the thing as-is, while the latter are good when cables are changed from time to time)
also, X2 should not have both grounds on the same terminal ; this kinda ruins the hotswap definition : please use a 4-terminal connector. also, see this excerpt from comment in issue #125:
this should be made clear in the doc.