Rivian R1S and EcoFlow Delta Pro Ultra: A Winning Combo for Home Backup Power

Rivian Mom · 2025-03-09T09:18:46+00:00

I had some free time yesterday so I decided to get some sound measurements in my R1S. I used the Rivian Elevations system not the Meridian. The input source was via Bluetooth from laptop so not the best sound reproduction but it does give you some idea of sound characteristics in the various positions throughout the cabin. Needless to say, I will be doing some tuning with the system's EQ. However, there is such of lack of mid and high frequencies in the third row that the only way to improve it would be to add extra speakers. I hope that there will be aftermarket solutions to this in the near future. Testing equipment and conditions: - Enclosed Garage - All windows and doors in Rivian closed - HVAC off - Test run with me sitting in passenger seat except when testing the passenger seat location when I sat in Driver's (interestingly BT would not stay connected unless I sat in the vehicle) - Sweeps were run with EQ flat, 3D Surround Sound Enhanced, Dynamic Sound Adjustment High (this setting did not matter as expected) - 3D Surround Sound settings with measurements taken in Driver's seat only Microphone: miniDSP UMIK-2 USB Reference Measurement Microphone (UMIK-2) on tripod Measure Program: REW V5.20.13 (REW room acoustics and audio device measurement and analysis software) Sound Sweep: 20 to 20,000 Hz Sound Level: -12.00dBFS Sample Rate: 44.1 kHZ

Rivian Mom

Active Wheeler

Yesterday at 5:43 PM

So I got to test out the beta for ecoflow delta pro ultra and I know of someone that has been using it since last September. It’s an excellent product that provides backup function comparable to a power wall. You can see that ecoflow delta pro ultra can indeed be charged from the Rivian.

So here’s the caveat. If you are using a smart home panel 2, right now you cannot charge from Rivian and power your home at the same time because the AC is disabled while you are connected to the home panel.

However, if you are using a manual transfer switch, it would be possible to use the rivian AC output to charge the battery while you are plugged in a 14-30 cable.

Here’s the caveat. You must verify yourself that the input isnt from your hoke system (aka floating neutral). This is typical for a generator, and actually is the situation for the rivian.

So again, I am not an electrician nor am I your electrician, but it seems like to me that since rivian is a floating neutral inverter, you may use it to charge the DPU at a steady state while the DPU power your home and supplement high current draw devices with its inverter.

Even if you have the smart home panel, you can use the generator input from home panel (if installed) and just use 14-30 to input your DPU there.