Charging a Rivian R1S with a Portable Solar Battery Power Station

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 5:08 PM

Rivian battery pack: 135kwh
Portable battery: 4kwh, around 100lb. SOC on the portable battery went from 88% to 10% Rivian gained 5 miles.

Could be a neat way to stop phantom drain if you camp out somewhere super sunny for a few days, or give some range to a more efficient EV like Tesla model 3/Y 10 miles to let it hit a charger.

I do have a great time driving the Rivian R1S. Love to death the yellow color first and foremost, but also its power and comfortable suspension. There are some minor issues here and there like liftgate alignment but I’ve always had service center take care of it very well.

Rivian has since discontinued compass yellow but it’s truly one of the most striking color in the EV world. It’s flashy but not over the top and perfectly suited for the off road image.

I am using a beta unit power station that I am testing called delta pro 3. It has an integrated 240v output up to 16A and allow direct integration with an EV charger. I had to use a 14-30 to 14-50 converter to enable usage with the rivian portable charger.