The new SC-48 battery charger developed by Delta-Q Technologies in collaboration with E-Z-GO.
E-Z-GO has introduced their new SC-48 battery charger for for its 2015 model year RXV® and TXT® electric fleet golf cars. The high-efficiency charger was developed in collaboration with Delta-Q Technologies. Key features of the charger include:
- Durable sealed die-cast housing
- High frequency charger
- Charger adjusts charging performance based on measurements from the temperature sensor installed on the golf car’s battery pack
- Repairable in the field by E-Z-GO technicians and distributors
- Charger cord will release from the charger if accidentally pulled
- LED charge indicators on both the charger and vehicle keep customers up-to-date about AC power status, charging progress, charge completion, or whether a fault has occurred.
The following specifications on the charger are from the Delta Q Technologies website.
DC Output
Maximum DC output power 750 W
Nominal DC output power 650 W
DC output current (48 V) 13 A
Estimated charge time at 75% depth of discharge 6.7 hours
Temperature compensation – Yes, third pin on paddle/ receptacle
DC connection resistance check – Yes
AC Input
Nominal AC input 110 V
Maximum AC draw at 110 VAC 7.5 A
Having a problem with this charger..Unit and cord get extremely hot..Almost too hot too touch. Both power cord and cord to the golf cart. This is the first time I have tried it. After 4 hours, there was no differences in the charge level. Started at about 50% and level remained the same. I feel it is unsafe.
5
SVR showed your comment to someone knowledgeable about electric golf cars and this was their response.
I have seen only two of these chargers so far. They are new this year to E-Z-GO. I do not remember seeing this new charger at the Golf Show in January. Club Car has a very similar charger they call the E.R.I.C. also made by Delta-Q.
My suggestion to this man is to perform a reference voltage test before inserting the DC charger plug and then performing the same test while the charger is actually plugged in and operating. This simple test involves testing the battery pack voltage by using a multi-meter set to a voltage above 60 volts DC. Place the red probe on the main positive battery post and the black probe at the other end of the battery string, the main negative post. The voltage should be somewhere near 48-volts or a little above.
Now plug the charger into the car, allow it to turn on and take another voltage test exactly as described above. Now the voltage should be something north of 50 volts…51, 52 volts, maybe higher. If so, this indicates a charging voltage is being put into the batteries. Remember that voltage is electrical pressure; there must be more voltage (pressure) going into a battery than what is coming out in order to charge it. If 52 volts are going into the pack then it is charging. If the voltage remains at 48 volts then the charger is kaput. I have seen Delta-Q chargers come bad out of the box.
The heat issue is another matter altogether. I have seen the D-Q chargers reach 120* and while hot this is not considered too hot. The man did not mention if the batteries were new but if they have a lot of use on them they can get quite hot during the charge cycle. Typically the chargers will get warm but not too hot to touch. This is a general rule though, not every case.