36A or 48A home charging?

[Visket]

Is it any better or worse for the battery to charge slower (say, 36A/8Kwh max) or faster (48A/11Kwh max for my home charger)?

During the course of overnight charging, either speed will fill my battery.

Just wondering what those folks knowledgeable about this can share.

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[NY_Rob]

These charge current/voltages are a fraction of DC Fast Charge levels that can impact battery longevity over time.

None of the home charging options will impact your battery health in any way.

 

[CJdergroße]

These charge current/voltages are a fraction of DC Fast Charge levels that can impact battery longevity over time.

None of the home charging options will impact your battery health in any way.

The ONLY thing I would like to add, it's marginally better to AC (Level 2) charge your truck as fast as possible, versus slower/trickle charging it. I cannot find the post, but a University did a study on EV batteries (Tesla), and found in Level 1 vs Level 2, when using a 110v plug, it keeps the voltage high over a long period of time, which is worse than charging it, letting it sit, and then go to sleep as you'd do in a level 2.

 

[azbill]

The ONLY thing I would like to add, it's marginally better to AC (Level 2) charge your truck as fast as possible, versus slower/trickle charging it. I cannot find the post, but a University did a study on EV batteries (Tesla), and found in Level 1 vs Level 2, when using a 110v plug, it keeps the voltage high over a long period of time, which is worse than charging it, letting it sit, and then go to sleep as you'd do in a level 2.

That makes no sense. Once charging stops, the voltage stabilizes a few mV below the charging voltage. It will remain at that level until you drive it. The only issue is in the case of leaving it at 100% for a long period.

 

[Sevn86]

I say go with the 48A. That's the setting I have and have been charging it nightly. I keep the max charge percentage at 80%

 

[Visket]

Thanks for the replies.

So is the Rivian capable of L2 charging at the 19.2Kwh of some of the higher-end garage chargers, or is 11Kwh (48A) the max for it's on-board charger?

 

[SANZC02]

Thanks for the replies.

So is the Rivian capable of L2 charging at the 19.2Kwh of some of the higher-end garage chargers, or is 11Kwh (48A) the max for it's on-board charger?

48 amps is max for the R1 series.

 

[HaveBlue]

Charging slower likely uses more power as the truck stays powered up the whole time consuming overhead that's the same regardless of how fast you are charging.

 

[Birdowin]

I recently bought a Tesla home charger (my wife has a Tesla). Relatively inexpensive at $425.00.
I also bought a Tesla-tap mini adapter. On the same 50A circuit my charging rate went from 13 mph to 28mph charging. The Tesla-tap mini was pretty expensive for such a small device $340.00. but well worth it as it also lets me charge at any Tesla destination charger for free.

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