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Thank you everyone for your input!

Thank you all for the input. Several different opinions! My plan was to parallel the old cells with old cells and new with new. So basically I would have two 12v 560 amp batteries in series. I did find that there is a LF280N cell which appears to be almost identical to my current LF280 cells. To...

Hello, Last year I built a small off grid system in my garage which works well but not large enough. I have been away from solar and this forum for about a year and have a question that I have not seen discussed. I purchased 8 Eve LF280 cells from Jenny Wu in October 2021. Purchase went well and...

Thank you, chrisski. I had not heard of AIC before posing this post on the forum. It's amazing how the more I learn, the more I realize I don't kinow. I am guessing as long as I have a good Class T fuse at the battery for ultimate protection that I could put a good quality breaker downstream...

I am using a Daly 250 amp BMS. I do plan to test the start and run loads on those tools, and like I said before, I can always continue to run any loads off grid power if need be. My off grid project is being built with separate circuits and outlets. At some point my plan would be to shut off...

I believe I found the answer to my own question. No, I don't want to use a breaker instead of the fuse and a separate on/off switch. Yes, I do need a Class T fuse because of the extremely high AIC rating required for the LiFePo battery and a separate master switch.

Thanks for the direction, filterguy. It is true that you don't know what you don't know. As much as I have learned over the last 7-8 months, I still find aspects I didn't even know to consider. Class T fuses for example. I had no idea why I needed that type, I see now because of the extremely...

Oh, thank you for the bussbar chart! This a so much better info and makes a lot more sense. The more I dig, it does appear that Blue Sea is the place to go. Would it make sense to use a 150 amp Blue Sea breaker instead of the T-1 or ANL fuse with a separate on/off switch? I'm thinking out loud...

I had a feeling what I was coming up with was way overkill, but I'm no electrical engineer and was using what I could find. I don't know what the difference is or advantage to a T-1 fuse, I will try to research it. I'm not so much worried about a few more bucks if I can get a safer or more...

Hello, I am new to the DIY solar game and have learned a lot from all the experts on this forum. I am building a 8s LiFePo battery with Eve 280 ah cells. This is a fun project to run my garage on solar only, even though there is grid power there now and the loads on my inverter can be varied at...

I am brand new to the off grid and LiFePo battery environment, but I was in the trucking industry as a mechanic all my life (almost 40 years) and have seen a lot. I can almost guarantee and bet a steak dinner that Steve S. and others are exactly correct with their assessment. With the thin...