Kept searching to see a running thread on Crate builds.. but they appeared to be all one offs. Apologies if this belongs in a different spot. I referenced it as 2.1 because when i purchased the battery, the URL linked to the 100AH Amperetime rather than the 50AH. So the 100AH is what I purchased. Obviously this presented itself as an issue when trying to put a 13" wide battery into a 12" square crate. Quick fix with the rectangle milk crate. But, This leads me to question if I have a 'safe' system because of the battery swap. Question regarding the Charge Controller with the 100AH battery instead of the 50AH. I upgraded he wires from the terminal block to battery to 6 gauge. Other than that, I don't think I deviated from the 2.0 Will Posted. Built this for knowledge and learning curve as a shed power supply as needed. I've progressed a long way from seeing the Duracell "Gasless Generator" in Costco in mid summer and shaking my head at it as a useless item.... but it spurred on the thought process. Comments, Questions, Concerns? Thanks.