R1T Inverter produces 120 VAC (121.5 no load) at 59.9 Hz with 2.4% THD

[ajdelange]

I have verified that the inverter produces 120 VAC (121.5 no load) at 59.9 Hz with 2.4% THD.

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[pc500]

If you're willing please do a load test up to the tripping point and post how it fades. My experience is I ran ~300 watts over the rating before it tripped, but that was a hairdryer and kill-a-watt meter during a demo drive.

I'm also very curious if the inverter runs off the high voltage system or the low voltage. I need 2,200 watts for RV AC, so I'm wondering if its upgradable.

 

[astonius]

For us common-folk, what does this mean?

 

[Ladiver]

For us common-folk, what does this mean?

You can’t run a hair dryer off your truck.

I think this was a miss by Rivian. Hopefully, the inverter will be upgradable.

 

[chrismc]

I think this was a miss by Rivian. Hopefully, the inverter will be upgradable.

A huge miss! Of all things to cheap out on, the price difference for a larger inverter would have been negligible on a truck this expensive. I would expect 120V/2400W (3600 surge), or a very solid 1800W as absolute bare minimum. 240V/30A (7.2kW) would be perfect!

 

[ajdelange]

For us common-folk, what does this mean?

It was meant to resolve the uncertainty as to whether the inverter produced 110 or 120V.

As for a load test - I'm trying to get out of towns as soon after the 4th as we can and so won't be able to do a load test. As to whether it is powered from the traction or 12V I'd guess it's the former as it would be a 125A draw from the latter.

 

[atebit]

Plus, I don’t even think the 12V is a proper “car” battery anyway. It was the same thing in my Taycan, like a glorified alarm system backup battery.
Now, I don’t think that a BEV necessarily needs a series-whatever wet cell battery like your grandfather’s Fairlane, but given the criticality of some of the electrical consumers the 12V system oughta be a little more robust in order to give it more autonomy from the traction battery if that were to have a critical failure.

 

[electruck]

Plus, I don’t even think the 12V is a proper “car” battery anyway. It was the same thing in my Taycan, like a glorified alarm system backup battery.
Now, I don’t think that a BEV necessarily needs a series-whatever wet cell battery like your grandfather’s Fairlane, but given the criticality of some of the electrical consumers the 12V system oughta be a little more robust in order to give it more autonomy from the traction battery if that were to have a critical failure.

This is precisely why they use a deep cycle (probably AGM) battery instead of a "proper" (by your definition) car battery. The different battery types are designed to support different load cycles.

 

[atebit]

No, most of my recent cars have had AGM batteries. They just weren’t so itty-bitty.

 

[ajdelange]

They just weren’t so itty-bitty.

That's because they have to crank the engine. Take that away and the load is pretty small.

 

[NY_Rob]

The 2.4% THD figure is respectable and is below the acceptable THD threshold for so called "sensitive" electronic devices.

1,500 watts max (12.5 amps) is not terrible as most modern portable devices will draw well below that figure. It really reinforces the fact that Rivian did not design the R1T as a true "work truck" where it would be used at job sites to power table saws, floor sanders, miter saws, etc...

 

[pc500]

The 2.4% THD figure is respectable and is below the acceptable THD threshold for so called "sensitive" electronic devices.

1,500 watts max (12.5 amps) is not terrible as most modern portable devices will draw well below that figure. It really reinforces the fact that Rivian did not design the R1T as a true "work truck" where it would be used at job sites to power table saws, floor sanders, miter saws, etc...

it just sucks because it missed one critical aspect: Camping with a RV. 2,200 watt would have done that -- most people use that honda inverter genset.

 

[thrill]

Does anyone have a photo of the inverter(s) used for the 120v system? How swappable will it be or are they on a dedicated board requiring keyholevehicularsurgery to change?

 

[AxelR]

You can’t run a hair dryer off your truck.

I think this was a miss by Rivian. Hopefully, the inverter will be upgradable.

This made me feel better about losing my hair

 

[Max]

1,500 watts max (12.5 amps) is not terrible as most modern portable devices will draw well below that figure. It really reinforces the fact that Rivian did not design the R1T as a true "work truck" where it would be used at job sites to power table saws, floor sanders, miter saws, etc...

I agree that 1,500 watts is not terrible but I respectfully disagree with the implication that a respectable power output is a "work truck" feature. Anyone that goes on an adventure lives in a home and can benefit from decent power during an outage. Folks that go camping as mentioned above could use more power on an adventure. I bet people that go off the beaten path on an adventure with their R1 and run out of juice would rather to get a boost from another R1 with 240V/30A output rather than being demoralized by a Lightning coming to help their flagship R1T. Electricity is not just for work. 1,500 Watts is OK on R2 but R1 could do better.

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