Gen2 battery replacement only been 7 months

[hammick]

Just received this text about our R1S. We took delivery in February. Please tell me they are going to put in a better battery. Replacing a the battery once or twice a year is going to get old quick.

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[mpshizzle]

This is actually different from the 12v battery replacements that they had to do for Gen 1 vehicles.

This is a one and done sort of a thing. The issue they are addressing for Gen 2 vehicles, is nothing to do with the battery or charging system, but rather the bracket the holds the battery in place. The original part they were using was corroding and potentially causing damage to the battery. (thus the warning that it could leave you stranded). So in an abundance of caution they're replacing the bracket with a new part that has an anti-corrosive coating, and a new battery just in case the damage is done.

This is not to be confused with the issue Gen 1 vehicles had where they were not properly maintaining the 12v battery and killing them. Gen 2 vehicles have an entirely different float charge system that prevents this issue

 

[hammick]

This is actually different from the 12v battery replacements that they had to do for Gen 1 vehicles.

This is a one and done sort of a thing. The issue they are addressing for Gen 2 vehicles, is nothing to do with the battery or charging system, but rather the bracket the holds the battery in place. The original part they were using was corroding and potentially causing damage to the battery. (thus the warning that it could leave you stranded). So in an abundance of caution they're replacing the bracket with a new part that has an anti-corrosive coating, and a new battery just in case the damage is done.

This is not to be confused with the issue Gen 1 vehicles had where they were not properly maintaining the 12v battery and killing them. Gen 2 vehicles have an entirely different float charge system that prevents this issue

Thanks. Was just reading about it. I should have done a better search. I can confirm the charging voltage on G2. Made an OBD2 charging adapter this winter so I could trickle charger the 12v. Then discovered the truck's BMS has a constant voltage and doesn't go to a typical float voltage. My trickle charger would never go into float. So I decided it was pointless on a G2.

It baffles me that EV manufacturers can't figure out the 12v battery. Just put an appropriate sized LifeP04 in there and program the BMS to keep it around 80% SOC. Battery might just last the life of the vehicle and certainly would reduce warranty claims.

 

[mpshizzle]

It baffles me that EV manufacturers can't figure out the 12v battery. Just put an appropriate sized LifeP04 in there and program the BMS to keep it around 80% SOC. Battery might just last the life of the vehicle and certainly would reduce warranty claims.

This is EXACTLY what Tesla has done (except their LV batteries are NMC, and run at like 15v)

 

[tate16t]

https://www.rivianforums.com/forum/...rom-rivian-action-required-for-your-r1.48869/

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