Battery charger recommendations

You should be able to jump start all of the batteries tho I wouldn’t recommend using batteries that had its polarity reversed.
I made a little comment here: https://community.mnt.re/t/battery-is-not-charging/270/63
If u had a battery with reversed polarity that normally means that the capacities were not matched in the first place or some cells degraded a lot quicker than other cells. Before you install new cells u should measure them and rematch them.