I'm hoping to find someone who has installed this DC to DC charger/MPPT solar controller. I tried calling Renogy. That didn't work so I set up a "ticket" to ask a tech a couple of questions. In spite of them saying that they usually reply within 24 hours, four days later I had a rather vague response. The question had to do with ANL fuse sizes Renogy quoted that did not exist. I was told I could use larger fuses. Hmmm. I then noticed that the Power and Current figures given by Renogy didn't seem (to me) to add up. A little knowledge can be a dangerous thing, and I may have something FUNDAMENTALLY wrong. What follows is the question I sent them 8 days ago (and still haven't gotten an answer.) :
These are two statements made on the DCC50S SPECIFICATIONS page:
There seems to be a contradiction. I believe only one of them is correct. Maximum Alternator Charging Current is 25A AND
Maximum Alternator Input Power is 660W ???
Power=Current X Voltage (W=A x V)
If the first statement is correct, then the Maximum Alternator Power is 300W not 660W. W= 25A x12V W=300W
I the second statement is correct, then the Maximum Charging Current is 55A not 25A. 660W=A x 12V A = 55A
SO, WHAT IS THE MAXIMUM CHARGING CURRENT AND MAXIMUM ALTERNATOR INPUT POWER OF THE DCC50S ?
Essentially, how can the "Maximum Charging Current" of the Alternator be 25A if the "Maximum Alternator Input Power is 660W ?
Am I missing something? Ardub
These are two statements made on the DCC50S SPECIFICATIONS page:
Maximum Charging Current : 50A (25A Alternator / 25A PV) Maximum Alternator Input Power : 660W |
Maximum Alternator Input Power is 660W ???
Power=Current X Voltage (W=A x V)
If the first statement is correct, then the Maximum Alternator Power is 300W not 660W. W= 25A x12V W=300W
I the second statement is correct, then the Maximum Charging Current is 55A not 25A. 660W=A x 12V A = 55A
SO, WHAT IS THE MAXIMUM CHARGING CURRENT AND MAXIMUM ALTERNATOR INPUT POWER OF THE DCC50S ?
Essentially, how can the "Maximum Charging Current" of the Alternator be 25A if the "Maximum Alternator Input Power is 660W ?
Am I missing something? Ardub