So as to not bury the lead, I have a solar panel with 46.6 Voc and a SmartSolar MPPT 75/15. I'd like to use them to charge a Bluetti EB70S from the Load output of the MPPT without anything connected to the Battery output.
The Bluetti has a single input for solar, DC, & AC charging so I can't bypass its MPPT. There is another thread on this site that indicates the SmartSolar MPPT Load output follows voltage profile of the charge profile. If there isn't a battery connected to Battery output, will this work at all? I could also connect the Bluetti from the Battery output of the SmartSolar MPPT, but two MPPT controllers seems like a bad idea.
If you think this whole setup is a square peg in a round hole, you would be right. I was planning on finalizing & installing a 24v system *after* a long summer trip to pick up our new camper and then use it for a month. But then yesterday StarLink announced a service for RV's that would let me do some work from the campground rather than seeking out cell service/wifi/shared workspaces. It requires 120v AC and we leave to pick up our camper in 3 weeks, then straight into our trip. There's no reasonable option for installing a whole new system on the road, let alone sourcing it all.
I have slowly been acquiring components for the permanent install, which currently consist of only a couple of panels (VoC 46.6v) I would be wiring in either series or parallel depending on the MPPT input specs. The panels came with a SmartSolar MPPT 75/15, so I have two of those but hadn't decided yet whether to use them or not in the permanent install.
So, for the immediate need I'm pivoting to purchasing a Bluetti EB70S and keeping it charged with one of my existing panels & the MPPT 75/15 if that will work.
