50% of charging low voltage accessories?

[tyfly867]

I had the truck parked in an airport parking garage for a few days and was able to plug the portable charger into a 110v outlet. I’m grateful for the free juice, but found it odd most of the power went to “low voltage accessories”

The garage was covered from the sun, my guess is mid 80s temp during the day.

Any guess as to what is going on here?

Sponsored

 

[huskybrewing]

Gear Guard activity?

 

[r1s-owner]

I've experienced the same here when charging "away from home". WIth nothing plugged into power outlets and 120v outlets turned off anyways. I'm only assuming Gear Guard was responsible for this slow, but consistent drain of the charging efficiency which I guess makes sense.

 

[Dark-Fx]

Rivian needs to work on their efficiency when the truck is awake. When actively charging, the truck is awake and uses a significant portion of energy to just be on.

 

[Rousie13]

I think several others have found that the truck uses a significant portion of the energy added for low voltage accessories when charging on Level 1, but that number significantly drops using Level 2 charging.

 

[aw113sgte]

Same as my experience when on 120V. The percentage is just a lot smaller when on 240V. For sure an area of improvement for Rivian.

 

[jjswan33]

I think several others have found that the truck uses a significant portion of the energy added for low voltage accessories when charging on Level 1, but that number significantly drops using Level 2 charging.

The drain is likely the same just a smaller portion of the juice delivered. For what its worth I believe the drain is similar even when not charging, at least that is my experience.

 

[DJG]

The drain is likely the same just a smaller portion of the juice delivered. For what its worth I believe the drain is similar even when not charging, at least that is my experience.

That's correct, the drain is constant in kwh, it's just a lower percentage as the rate of charging goes up and the time factor goes down. It's essentially just the vampire drain being measured, but even higher because the vehicle isn't asleep and there is power being consumed by the BMS during charging.

 

[RealBillNye]

I think several others have found that the truck uses a significant portion of the energy added for low voltage accessories when charging on Level 1, but that number significantly drops using Level 2 charging.

This is true. When I was charging off of level 1 over the weekend it was charging at around .5 miles per hour (at 10amps).

 

[RealBillNye]

The drain is likely the same just a smaller portion of the juice delivered. For what its worth I believe the drain is similar even when not charging, at least that is my experience.

At least when at home I haven't experienced anywhere near the amount of energy consumption vs when I am charging.

 

[jjswan33]

At least when at home I haven't experienced anywhere near the amount of energy consumption vs when I am charging.

Well my experience is I see ~3-4 kWh of loss per day with the truck just sitting in my climate controlled garage without gear guard or anything. I thought that was the consensus but maybe others are doing better.

 

[kylealden]

I haven't seen much in vampire losses when unplugged, but I do consistently see 50% vampire drain on the charger when charging at 120v (which is all I have at home). Disabling Gear Guard videos and unplugging all accessories doesn't seem to make a difference. Definitely an area of improvement.

Sponsored