Resetting a lithium LV battery after it drained to 0%

[DiyEvRepair]

Does anyone know how to reset the new lithium LV batteries (installed in 2021+ Teslas) after one drains to 0%? These batteries have built-in MOSFET that gets opened when battery is discharged all the way, and I am trying to figure out how to get the battery re-activated.

Than you!

 

[BijliZ]

Does anyone know how to reset the new lithium LV batteries (installed in 2021+ Teslas) after one drains to 0%? These batteries have built-in MOSFET that gets opened when battery is discharged all the way, and I am trying to figure out how to get the battery re-activated.

Than you!

You ever figure that out?

 

[evrepair]

Yes there are a few things to try, but with newer firmware you don’t need to do anything special anymore. As long as the contactors close, the car should reconnect the LV battery and start charging it. I recommend updating to the latest available software version.

 

[ucmndd]

That MOSFET is there to keep you from doing something stupid and burning your car/house down.

If you’ve discharged one of these batteries to zero, replace it.

Watch the last two minutes of this video to understand why.

 

[theothertom]

Watch the last two minutes of this video to understand why.

I think the OP was asking about the LiOn 16V battery.

 

[ucmndd]

I think the OP was asking about the LiOn 16V battery.

Yeah, me too. Did you watch the video before you commented?

 

[theothertom]

Yeah, me too. Did you watch the video before you commented?

I started the video and it was talking about a 12V battery. Only watched a minute or so.

 

[ucmndd]

I started the video and it was talking about a 12V battery. Only watched a minute or so.

So in that case, watch the video. Bonus points for the whole thing, but you can also skip to the last 2 minutes like I said in my original post.