Moving along with the range of improvements that this scooter requires - of which some are practically essential, the parts I needed for doing a few more improvements have conveniently arrived.
One of the things that have been identified by some as a weak point, are the boxes that are used for connecting the 3 phases coming from the ESC's, which provide power to the motors.
While the boxes and insulating material are not bad and appear to have reasonable thermal resistance and good insulation, there are users who upon pushing harder on the scooter, find that these connection points tend to overheat, causing cables to melt and eventually serious problems to occur.
My guess is that with the vibration, the screws that keep the terminals in place, may become loose, causing a poor connection which increases the resistance and heat buildup in these points. The yellow box will not necessarily melt, but the cables can heat up to the point of melting lower temperature plastic these might get in contact with, as is the case of the hall effect sensors connectors:
As such the first thing I did was replacing the yellow connection boxes with 6.5 mm bullet connectors:
It takes a lot of heat and solder to properly install these, so it is important to use a powerful soldering iron.
In order to handle the chargers in a slightly more practical way, I have grouped together the cabling, and added the adapter:
This prevents sand and other debris from coming into contact with the moving parts in this folding mechanism, therefore avoiding abrasion and damage to the surfaces. Also avoids contact with water, eventually preventing corrosion.