diy solar

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  • Charge controller not charging my batteries? Maybe?

    Hey guys. I’m going to try to keep this concise. I have a 200 amp lithium battery from renogy and the 50amp dc to dc controller with mppt. I also have a BT2 connected to the controller. Recently my battery hasn’t been getting much charge at all, and I think the culprit is my charge...
  • New LiFePO4 battery 200A from Renogy - cells read 3.4V, 3.4V, 3.3V, and 2.8V?!

    I just finished setting up my new Renogy battery, and when I synced the battery with the app, the readouts were a bit startling. I got a battery error #4 warning of under voltage. Checking the cell readouts, one is significantly undercharged. (3.4V, 3.4V, 3.3V, 2.8V) Despite the error message...
  • Struggling to determine sizing and placement for fuses/breakers

    Hey everyone, first post here. I've been reading and watching a lot of videos and I've come up with this rough draft of a diagram thus far. I know I need a fuse attached to the positive terminal of my solar battery, I'm just not sure what size I need. Is it 200A as thats the capacity of my...
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