bmartin wrote:Quick calculations: you could store 4 in a row (parallel), and 4 in a line (series) in that enclosure, with room for the BMS. Using 16 20Ah cells you could store about 1kwh (16 cells * 20Ah * 3.2v = 1024kwh), or 320Ah. That is almost a 10x increase over the Lead Acid hazard. I run many accessories off of my 12v system so I see many benefits. Though the cost would be almost $500 for all needed parts and cells.
You could buy a good 12v Lithium "drop in" replacement battery (with a built-in BMS) for that kind of money. Not to mention that capacity is way overkill: I have a 20 Ahr 12v LiFePO4 battery in my car and have never had a "dead" 12v battery (and I run a lot of ACC).