Wow !!! A complete Heath Robinson job
.
Not designed or built for off roading then and not for rainy days
.
Batteries and wiring look very interesting wouldn't take much to short them
.
Could be that this is his /her first e bike build and still having a few teething problems before the next bespoke looking model
.
Any guess on mileage from the three batts ,30 maybe if they don't sag or even if they are balanced with a decent charge in them ?