I suspect there are some translation issues here.
Have the battery tested.
Turn on all of your accessories (minus the engine fans) and read voltage at idle.
Run your fans plus all accessories and read voltage at idle.
As long as voltage is above battery level at idle with your accessories, there is no problem to diagnose.
This may be the same for fan + accessories but I'll need someone with an electrically stock 3rd-Gen R6 to confirm. (my 2nd Gen no longer maintains charge with enyogine fan but I have add-ons)
Over-voltage is extremely bad. Will need to check your grounds if you see that.