Ok so my BS stupid battery charger stuff continues. This time it's basically spend little to no money because we may not keep the forklift. Struggling to go over uneven ground if you bring it to a stop. Anyways given that I might just sell the machine I'm attempting to see if I can make the 36v single phase charger that we bought work better. To my understanding of the absorption stage of charging the 36v battery it needs approximately 44.1v. this little charger kicks off at 42.6v which when charging even a fairly depleted battery the charger is only on for about 4 hours....I spliced in a variable resistor today to what I'm calling a voltage sense for the controller. I had to keep adjusting it as the day went on to keep the charger on and voltage in spec. I'd like to either find a way to control that sense line or another way all together to control the transformer.
So the red wire off the controller going to the dc+ line is what I spliced the resistor into. Started out around 250 ohms to get the voltage close to 44v and finished at about 80 ohms to make the charger shut off at 44.3v I was able to get about an 8 hour charge on it today after the charger "said" it was charged yesterday. The other feature that I would love it to have is float. Float voltage should be under 42v. I don't have a way for the charger to stay on at that low of a voltage when the battery is charged.
Again any input is appreciated
So the red wire off the controller going to the dc+ line is what I spliced the resistor into. Started out around 250 ohms to get the voltage close to 44v and finished at about 80 ohms to make the charger shut off at 44.3v I was able to get about an 8 hour charge on it today after the charger "said" it was charged yesterday. The other feature that I would love it to have is float. Float voltage should be under 42v. I don't have a way for the charger to stay on at that low of a voltage when the battery is charged.
Again any input is appreciated