As previous post, my generator ( AIR 40 ), went on blink.
Ten knots and brake coming on, no LED indication, cuts at 5 volts.
Advice from supplier in US was if it pump some amp than its morning .
Well, it's not good enough .
New sircuit board cost about $550 dollars.
Instead i butchered circuit board and installed bridge ractifyier ( about $25 from eBay ).
Tested by spining with drill and she's pumping some volts.
One more small piece of gadget is on the way - DC to DC voltage regulator for overcharging - $23 from Ali Express .
Just in case I also wire up off switch when high wind kick in.
