Hey. I finally got enough batts to replace a handfull that that failed the sitting around test (sub 4) anyway prepped some busbars which got me thinking about fusing on the negative side only to avoid spitzen sparken errors at the pos end. Got a second hand older 24-2000-50 victron. I don’t have windows so reprogramming is a nightmare (downloading parallels and a dodgy windows x) then find out the victron needs to be powered from batts so back to dipswitch settings... anyway nearly there!

(02-13-2019, 12:25 AM)camthecam Wrote: Hey. I finally got enough batts to replace a handfull that that failed the sitting around test (sub 4) anyway prepped some busbars which got me thinking about fusing on the negative side only to avoid spitzen sparken errors at the pos end. Got a second hand older 24-2000-50 victron. I don’t have windows so reprogramming is a nightmare (downloading parallels and a dodgy windows x) then find out the victron needs to be powered from batts so back to dipswitch settings... anyway nearly there!

i dont know whow you gone use that victron but for a powerwall i think you have not that many cells and if i do a math : 2000 watts / efficiency 95% is 2105 watts divided by 24v is 87,7A divide by the amount off cells (60) = 1.46A so that seems a bit much for one cell for the long run.

i try to keep the discharge under 400ma per cell.

but ofcourse is it just to diliver some power to tools then it shall not be a problem

Im going to limit charge to 30 amps and its going to run a fridge. Start up current compensated by 2000va (actually 1800) the fridge is 200w when operating. Then when I get some more cells.....