ask electrical engineers say about battery pulse desulfator

#Ask electrical engineers say about battery pulse desulfator install

Caterpilar pays attention to details like that. It lets you know that it needs attention. The battery has never been at this low of state of charge before, the forklift slows down by computer control when it gets low. This forklift is a modern computer controlled logic based and does recognize the battery but will not engage drive electronics at that low a voltage.

#Ask electrical engineers say about battery pulse desulfator install

I have only 120 volts 30 amps service where forklift is now.Īny suggestions from anyone who has worked with such a battery? Please no YouTube instant experts, this is big industrial! big,big bucks! Caterpilar wants $4500 to install new battery.įYI, forklift batteries often do not have a 20 hour rate, 6 hour rate is used as that is an average day for an industrial forklift. I need to get the battery up to 30-40 percent charge so it can be driven to transport truck and bring it to big charger. I have a week into this allready, only an hour or so to set up and chart but need to monitor to be sure I don't damage this further. This manager can reach into his pocket and squeeze the quarter so hard the eagle screams then he squeezes the nickle so hard the buffalo takes a shit in his pocket, to give you an idea of what I am dealing with on that end. I have talked the general manager into buying a Lestronic 36 volt 25 amp charger I found on flee bay for $99. Im focusing on getting the s.g.'s out of the toilet first, so only charging each group of 6 cells to about 12.8 volts or so. All 4 chargers in parallel on each group of 6 cells nets about 60-70 amps for about 36-48 hours has brought battery from 11.4 volts to 12.6 volts for each of 2 of the 3 groups of 6 cells, I've just started the third set of 6 cells, they are the weakest ones at 11.2 volts and they are slow to come up in voltage. I have only 4 chargers total so I need to improvise and charge only 6 cells at a time. The 40 amp charger is logic controlled and stays in desulfate mode at 2.2 amps until the three 10 amp chargers tickle the battery a bit then with power cycling it comes up to 40 amps. I have 1 at 40 amps, modern logic control and 3 at 10 amps ,all old basic chargers, To that end I am using 12 volt automotive chargers on each 1/3 of battery, too small, but the only thing I have to work with. Normal charge rate for that forklift using that charger is 190-225 amps, charger is automatic and will not charge a battery that low in voltage, unfortunately the fork lift is miles away now so I need to implement a charging scheme to prevent further damage to this >2500$ battery. I have found a control logic transformer and repaired the big charger but it is in shop where we have 240/480 power, The main transformers are energised by the control logic driving a 3 phase relay so they had no power and were not damaged. It burned out the primary windings of the control transformer. It is wired 240 3 phase and was plugged into 480 volt 3 phase.

hour rate battery, flooded lead acid, Big charger is CD Technology Ferroresonant charger 240/480 volt 3 phase. The Fork lift was moved to a new location and the charger was plugged into the wrong voltage damaging it and the battery has been left sitting since November '18, plates were exposed and voltage is about 31.44 volts, about 4 gallons of distilled water was added to submerge moss guards, battery is manufactured by CD Technologies, don't have exact model number, but twin to this forklift has a Yuasa 36 volt 1140 a.h. One of my customers has neglected to properly maintain their Caterpilar Fork Lift battery.