Yamaha 48v charger question

nmoye1

I have a 1999 Yamaha G19E with a Yamaha 48v charger.My batteries are low enough that the charger will not come on.Does any one know how to bypass the low voltage relay on this charger so I can get the batteries to come up?Any help would be appreciated.Thanks

smallblock450sl

There may be a way, and I should know it, but....We fab a lester dc receptical with cables to run to the end of the battery pack. A 36 volt "timer" charger will put out about 44 volts and it chargers the batteries enough to alow the Mac charger to sence voltage and turn on. You can use a 12 volt charger. Charge 2 batteries at a time...normally about 3 hours each set. This will bring the voltage up so the Mac charger will sence voltage and turn on and run. Although you will probable get an "abnormal" cycle after the first try. Just unglug and repug to start the cycle again.....overnite ...you should be operational again. And as you charge and discharge....the batteries should come up again. Good Luck Dave