|
I made a Bonn charger. It does a taper charge, amps go down as volts go up.
It did not make batteries happy. I changed the inductor on it some and added
the Open ReVolt control board and another inductor and capacitor to boost the voltage for a 144 volt pack. The control board is only switching the mosfet, but it could do more. I set the timer for 2 hours and adjust the potentiometer to 11.5 amps for my 115 ah batteries.When it gets to 172.8 volts I turn the potentiometer down to 4amps. Reset the timer for 2 hours
and leave it alone. The time on the 11.5 amp bulk charge varies, depending on the DOD. My batteries are very happy now. I don't have much money in it.
alvin
|