I'm considering the following setup:
16 EVE230 cells from powerwholesale
8kW Outback Mojave inverter (whenever it becomes available)
I was looking at using the JK 200A BMS for the cells, partially because I like the 2A active balancing feature it has compared to JBD.
Then I started doing some math, and got concerned. 8000W / 48V = 167A
"ok-ish" - not great, but technically within specs and I'm unlikely to be pulling 8kW sustained for any length of time. But, throw efficiency loss into the mix...
8000W / 0.85 / 48V = 196A
That's awful close to the 200A rating. Now, am I going to be pulling that much from the inverter on any regular basis? I doubt it. If I was, that battery bank wouldn't run very long, and once I start adding additional banks with additional BMSes then the power draw is no longer a problem. But, still, at least in theory, I could pull near the limits and that's concerning to me.
Alternative is this QUCC (which may be a JBD?) BMS. It has an option of a 200A or 300A relay contactor with a peak 600A. That should do it just fine, but it has low balancing currents. Hopefully it is ok if I get good cells. Or, maybe pair it up with a separate active balancer?
So, which BMS would you guys pick? Or a different option?
16 EVE230 cells from powerwholesale
8kW Outback Mojave inverter (whenever it becomes available)
I was looking at using the JK 200A BMS for the cells, partially because I like the 2A active balancing feature it has compared to JBD.
Then I started doing some math, and got concerned. 8000W / 48V = 167A
"ok-ish" - not great, but technically within specs and I'm unlikely to be pulling 8kW sustained for any length of time. But, throw efficiency loss into the mix...
8000W / 0.85 / 48V = 196A
That's awful close to the 200A rating. Now, am I going to be pulling that much from the inverter on any regular basis? I doubt it. If I was, that battery bank wouldn't run very long, and once I start adding additional banks with additional BMSes then the power draw is no longer a problem. But, still, at least in theory, I could pull near the limits and that's concerning to me.
Alternative is this QUCC (which may be a JBD?) BMS. It has an option of a 200A or 300A relay contactor with a peak 600A. That should do it just fine, but it has low balancing currents. Hopefully it is ok if I get good cells. Or, maybe pair it up with a separate active balancer?
So, which BMS would you guys pick? Or a different option?