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.....

I am building a shelf from found pallets and leftover cement sheet from the side of my house. Hopefully that makes it a bit fire proof! A bit rough but ill fix it up.

About the Windows, if you're using mac or linux, you could try installing the software with Wine. https://www.winehq.org/
Or you could install VirtualBox and then inside VirtualBox you could install a virtual windows. https://www.virtualbox.org/

Btw, the shelf looks pretty nice!

Cheers!

Two of 7. Just got some soddering to do.

Update for the hell of it... my god! Soldering is bloody boring and I’ve only got 420 cells! Getting the packs down to 4v before I install.

Yay, got it going. Get three nights out of batt running the fridge. My 60amp breaker pops on charging so getting some proper ones (noark) can’t program the victron as wine doesn’t find the usb... charging with my power supply until breakers arrive. The fan in the Victron is very loud.

LOL I swear, that image looks like it was done in some 3D program