What controls a Power Drive 2 charging rate?

teckersley · 12-01-2012, 09:41 PM

I have installed 4 new Trojan 1275. Following the battery break in procedure, the first charge took a long time, 12+ hours. I ran the cart the first time down to 48.9 volts. I plugged the charger in and it is running 12+ hours again. I think it's only stopping the charge because of the 16 hour or whatever the max limit is. What controls the shutoff point, charger, obc, etc? what should I check and how? I really don't want to mess up the new batteries. Or, s a 14 hour charge normal at 48.9v?

Stevegrmich · 12-02-2012, 06:42 AM

. . . OBC controls the charge . . . charger controls the 16 hour time limit . . .

teckersley · 12-02-2012, 07:15 AM

Is there any way to check the obc? The cart runs fine it just seems to not be sensing when to shut off the charger. Any ideas?

Stevegrmich · 12-02-2012, 07:55 AM

. . . charge cycles can take up to 16 hours to complete, at which time the charger would automatically turn off . . . last few hours of charge cycle will be at about 3-5 amps . . .

scottyb · 12-02-2012, 11:01 AM

Monitor the cut off voltage (63- 64v)
If the batteries have sat on the shelf for a long time they may require long initial charges. This is normal. Check your water levels & Try more charges at a shallower discharge.

Check pack voltage 12hrs after the charge ends and post that voltage here.

12-01-2012, 09:41 PM	#1
teckersley Not Yet Wild Join Date: Jan 2009 Location: Houston, Tx. Posts: 55	What controls a Power Drive 2 charging rate? I have installed 4 new Trojan 1275. Following the battery break in procedure, the first charge took a long time, 12+ hours. I ran the cart the first time down to 48.9 volts. I plugged the charger in and it is running 12+ hours again. I think it's only stopping the charge because of the 16 hour or whatever the max limit is. What controls the shutoff point, charger, obc, etc? what should I check and how? I really don't want to mess up the new batteries. Or, s a 14 hour charge normal at 48.9v?

12-02-2012, 06:42 AM	#2
Stevegrmich Medicare Recipient Join Date: Jun 2011 Location: West Michigan Posts: 3,541	Re: What controls a Power Drive 2 charging rate? . . . OBC controls the charge . . . charger controls the 16 hour time limit . . .

12-02-2012, 07:55 AM	#4
Stevegrmich Medicare Recipient Join Date: Jun 2011 Location: West Michigan Posts: 3,541	Re: What controls a Power Drive 2 charging rate? . . . charge cycles can take up to 16 hours to complete, at which time the charger would automatically turn off . . . last few hours of charge cycle will be at about 3-5 amps . . .

12-02-2012, 11:01 AM	#5
scottyb Happy Carting Join Date: Dec 2007 Location: Southern California Posts: 73,418	Re: What controls a Power Drive 2 charging rate? Monitor the cut off voltage (63- 64v) If the batteries have sat on the shelf for a long time they may require long initial charges. This is normal. Check your water levels & Try more charges at a shallower discharge. Check pack voltage 12hrs after the charge ends and post that voltage here.

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12-02-2012, 07:15 AM	#3
teckersley Not Yet Wild Join Date: Jan 2009 Location: Houston, Tx. Posts: 55	Is there any way to check the obc? The cart runs fine it just seems to not be sensing when to shut off the charger. Any ideas?