Forum Discussion
TWH99
Sep 14, 2017Explorer
BFL13 – thanks for confirming ADC is Amps DC. I assumed it was but I don’t like assuming anything when it concerns electricity. A google search, prior to asking could not answer this. I am obviously a novice re: electricity but I do have down W=A*V and it’s other two variations and it makes sense to me. The nomenclature, abbreviations, specification data on equipment and how/or where it applies in all the calculations is where I get tripped up or where I don't feel sure I am interpreting everything correctly. Thus all my weird and simplistic questions. I will be investing a lot of money in a complete system so I would like to try if possible to actually understand at the most basic level (I don’t need to understand how VA is different than Watts) what equipment to buy and compatibility between all components in the system based on each item’s input and output capabilities. I understand if you are tired of answering my question but thanks for all you have offered thus far. I’ll keep asking until no one answers anymore but I think I am pretty close to having just about everything answered. Thanks again to you and everyone else on RV.NET.
Next batch of questions: Are any of these statements false?
RE: Charger – 125 Amps DC: = the charger is capable of charging the battery at a rate of 125 Amps DC
RE: Charger – Input current 18 Amps AC: = the charger can accept up to 18 Amps AC (from generator or shore power). In the case of the Honda EU2000i generator that outputs 120V/13.3A/1596W; it is 4.7 Amps short of using the charger’s 18 Amp capacity. If the charger cannot automatically detect the generators output limitations, the user should dial down the Input Current demand to 13.3 Amps or below to insure the generator is not over taxed running continuously for hours near it’s rated capacity. Theoretically, with 13.3 AC amps entering the Charger, it will output approximately 133 Amp DC at 12V to the battery bank. In practice output Voltage may be a little higher, for example 14.2 and Amps 112. The 112 will be further reduced due to the 87% efficiency of the charger and the >.95 Power Factor.
Specifications for Charger:
125 ADC Continuous Output at 25 degrees Centigrade
87% Charger Efficiency
>.95 Power Factor
18 Amps Input current at rated output (AC Amps)
Next batch of questions: Are any of these statements false?
RE: Charger – 125 Amps DC: = the charger is capable of charging the battery at a rate of 125 Amps DC
RE: Charger – Input current 18 Amps AC: = the charger can accept up to 18 Amps AC (from generator or shore power). In the case of the Honda EU2000i generator that outputs 120V/13.3A/1596W; it is 4.7 Amps short of using the charger’s 18 Amp capacity. If the charger cannot automatically detect the generators output limitations, the user should dial down the Input Current demand to 13.3 Amps or below to insure the generator is not over taxed running continuously for hours near it’s rated capacity. Theoretically, with 13.3 AC amps entering the Charger, it will output approximately 133 Amp DC at 12V to the battery bank. In practice output Voltage may be a little higher, for example 14.2 and Amps 112. The 112 will be further reduced due to the 87% efficiency of the charger and the >.95 Power Factor.
Specifications for Charger:
125 ADC Continuous Output at 25 degrees Centigrade
87% Charger Efficiency
>.95 Power Factor
18 Amps Input current at rated output (AC Amps)
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