EcoFlow PowerStream Battery Cable connected to a 3rd party battery

[cristipurdel]

I was wondering if someone managed to tinker with the EcoFlow PS battery cable to connect to a 48V battery.
I know you can connect to a Delta Pro or Delta 2/Max, but the cable looks like an XT-60 with 6 extra pins.
Instead of overpaying for a Delta Pro, I was thinking maybe I could just buy a solar victron inverter 48V, connect it to a large battery (maybe the new sodium ion ones), and connect it to a PowerStream, just so I can feed the grid 24/7. The big problem would be if I can disconnect the "battery" from the PowerStream on rainy days automatically.
I could just buy the Delta Pro and/or extra battery to store all of the excess energy and back-feed, but the ROI should be pretty high.

 

[Crowz]

I'm not sure if that one has a protection method to keep you using their batteries or not. I seem to of read somewhere that one of them did that.

 

[ttsherpa]

I know it's not right, but for testing a third party battery may be you can use the 2 Solr ports (Max 400W)

Manuel F