Hey everyone, fellow newbie here. I looked through the forums and didn't see answer for this question, if it has been answered if you can point it out to me that'd be great!
I purchased the Growatt 48V system with the inverter sized at 3000W/6000W surge. I also have two of the big battery 48V NMC batteries. I watched @Will Prowse video and saw he had connected one of the batteries to the growatt inverter but I'm getting confused on my limitations with the SB50 connector.
My understanding is the SB50 is rated for 50 Amps of continuous current. However, the Growatt can draw 3000 watts of continuous power. If I'm calculating everything correctly, I believe this means the 48V growatt system comes out to 62.5 amps. Won't this create a fire hazard with the SB50 connector, if I'm running 3000W continuously?
The battery breaker is 63A (https://bigbattery.com/product/48v-li-ion-powerwall/), so the battery technically can support the 3000W, but I'm confused on whether the actual connector the battery comes with can support a 3000W continuous load. Shouldn't I just be limited to 2400 watts continuous load (50A * 48V)? I tried getting more information on the connector and I found this data sheet for the SB50 http://www.thunderstruck-ev.com/Manuals/SB50.pdf. It shows I can handle surges past 50A (even handling my 6KW Surge for the 5 seconds before the inverter breaker trips). Though, I think my battery's break at 63A will prevent me from surging that high.
This is a related question so I'm not sure if I should make a separate post, but I'm also confused on how the connectors work when connected in parallel. I'm assuming I can draw more amps from both batteries if they are connected in parallel to support my 6000W 5 second surge on the inverter. However, I'm thinking I would have to open the batteries up and change out the SB50 connector to something more beefy to handle the combined amps running through the circuit, right? Or is that just not possible?
Thank you for any help you can provide!
I purchased the Growatt 48V system with the inverter sized at 3000W/6000W surge. I also have two of the big battery 48V NMC batteries. I watched @Will Prowse video and saw he had connected one of the batteries to the growatt inverter but I'm getting confused on my limitations with the SB50 connector.
My understanding is the SB50 is rated for 50 Amps of continuous current. However, the Growatt can draw 3000 watts of continuous power. If I'm calculating everything correctly, I believe this means the 48V growatt system comes out to 62.5 amps. Won't this create a fire hazard with the SB50 connector, if I'm running 3000W continuously?
The battery breaker is 63A (https://bigbattery.com/product/48v-li-ion-powerwall/), so the battery technically can support the 3000W, but I'm confused on whether the actual connector the battery comes with can support a 3000W continuous load. Shouldn't I just be limited to 2400 watts continuous load (50A * 48V)? I tried getting more information on the connector and I found this data sheet for the SB50 http://www.thunderstruck-ev.com/Manuals/SB50.pdf. It shows I can handle surges past 50A (even handling my 6KW Surge for the 5 seconds before the inverter breaker trips). Though, I think my battery's break at 63A will prevent me from surging that high.
This is a related question so I'm not sure if I should make a separate post, but I'm also confused on how the connectors work when connected in parallel. I'm assuming I can draw more amps from both batteries if they are connected in parallel to support my 6000W 5 second surge on the inverter. However, I'm thinking I would have to open the batteries up and change out the SB50 connector to something more beefy to handle the combined amps running through the circuit, right? Or is that just not possible?
Thank you for any help you can provide!