I wouldnt have any connectors at all in the power wiring, except where you need a main battery connector of course.
The XT60’s for example have a PEAK current rating of 60 amps, the continuous rating is 30 amps. They may still get hot and fail - you have to regularly check their pins are still tight, and re-tighten them if necessary. Use a small flat-blade screw driver (or similar) to carefully spread the split male pins so they grip tight in the female sockets.