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Just John. Thanks. I downloaded the app and will play around with the numbers. Designing a system is so different than working on one.

I did and the array size is under the manual max. Reading manual specs make more sense as I get more familiar with battery/solar information. You guys help out a lot by stating things in different ways. I have background in electronics and electricity but NO background in this area or in design...

time2roll. I see your point. Nothing is pulling that much power. The battery bank is sized for longevity not high amp usage. So many things to consider.

time2roll. Since max charge is 100a and max continuous discharge is 130a, seems like an 80 or 100amp fuse would not allow the battery to use its full potential. ??

Bud Martin. Yes..I did the math wrong. Thanks for doing it the right. It does make more sense. MichaelK. Those factors are all true and helped me understand this better. I tend to plan for extreme examples so that I sleep better at night. I am a database programmer so I have to plan on every...

Thanks Johcfii. I had planned on using 150a but was confused with all the different numbers. I agree that the built-in 300a fuse seems too large but that is from the manufacturer. Time2roll. Nothing has been connected at this time. I have 1/0 wire to use since I like overkill. Thanks all.

Thanks Forbisher, Sometimes is just takes a re-wording of things in order to understand. In doing the formula for the SCC, I was thinking the amps from the panels applied to the capacity of the MPPT. I was not applying it to MATCHING an MPPT to the amps coming IN to charge the battery. I...

I had purchased a Victron MPPT 100/50 already for my build. Then stuff happened with my solar panels and I ended up getting LARGER panels than I had planned, for the same price. Now, when I used Will Prowse's formula in his book, it seems my MPPT is not big enough. I am OK with adding a second...

Hi. I am new (here and to this stuff) and want to start out with the easy questions. I have 4 LiFePO4 batteries (total 420ah @ 24v) that I am going to hook each to a Victron Distributor. There are so many amp numbers involved that I am unsure which one is the main focus. My question is "What...