Regarding my previous post about the Braille charger not working with some generators...this proved to be false. I found my Yamaha 2000 generator has a switch/governor which when selected only ramps up according to load. This setting was not enough to excite the Braille charger. By turning off this feature of the generator the charger now activates...the Braille 10 amp charger tops off my batteries quicker than any other I have tried. My apologies for the previous misinformation.