Battery depleted to 0%

[HaulingAss]

I they actually have to move the vehicle outside to the destination chargers to charge. They generally don’t have chargers inside. (Maybe for local code reasons. Even though “we” have chargers inside our own garages. Ha)
Before today, I thought every Service Center would have a charger at each service bay, but they do not. The only reason NOT to is for building code reasons. Right?

Why do you think Building Codes prevent EVSE (EV chargers) from being installed in the service bays? If they needed them there, they would install them there.

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[HaulingAss]

Thanks everyone. I did message service. Out of the country right now. Not sure if they called the body shop but they put it on the charger. 120v!

Was just worried this will kill my capacity or bug out some modules. I'm not sure how long it was 0%, but it was 1% last night. So I hope it didnt affect the 48V battery

I hope it will ease your concerns to know that the car is designed to be discharged to 0% (and 0% is not really 0%, more like 15%). All EVs have a buffer on the top and bottom of the battery that is there to increase the useable lifespan of the battery.

Nothing wrong with taking it down to 0% (it can actually help the battery management system get a good read on the state of health of the battery and calibrate your battery meter more accurately). And, thankfully, they didn't leave it at "zero" for any length of time.

 

[TexasRaider]

Why do you think Building Codes prevent EVSE (EV chargers) from being installed in the service bays? If they needed them there, they would install them there.

Good question. Because, why else would an EV service center NOT put EVSEs in each bay? I don’t believe it would be cost. Right?

 

[AlDente]

Hello all. Any issues, future problems that can occur when the battery is depleted to 0?

My truck is at service center body shop to take care of issues with scratches they caused. Just saw that the battery is 0%. Now I am worried that this can lower the battery capacity, etc. or affect other modules of the truck.

You're toast, might as well start saving for that battery replacement ... J/K

Kyle Conner (who knows a thing or two about EV batteries) runs them dry all the time. The GM's seem to be the vehicle that has the most issues with zero charge state but even those are not permanent issues.

Based upon a Tesla recommendation we now trickle charge our Tesla's using the Mobile Connectors daily and only use the 240V Wall Charger for quick overnight top offs for a pending long drive. Giving the vehicle a constant flow of energy helps it maintain battery temp and pack balance. We Supercharge less than 10% of the time with our heavy use, road trip Model X.

While battery's are in a constant state of flux due to anode, cathode and electrolyte changes, some of the early 2012 Model customers are still running on the original battery pack. Our friends own a 2012 Model S (85kw) which was originally stated as 265 miles range. They still get over 200 miles and they have exclusively used Superchargers for 12 years (free Supercharging for life) and over 170K miles driven. The whole battery replacement FUD story is mostly BS. If not abused, the battery and motors on Tesla's can go hundreds of thousands of miles.

 

[REM]

I hope it will ease your concerns to know that the car is designed to be discharged to 0% (and 0% is not really 0%, more like 15%). All EVs have a buffer on the top and bottom of the battery that is there to increase the useable lifespan of the battery.

Nothing wrong with taking it down to 0% (it can actually help the battery management system get a good read on the state of health of the battery and calibrate your battery meter more accurately). And, thankfully, they didn't leave it at "zero" for any length of time.

There is a buffer, but you absolutely should not be draining your battery down to 0% if you care about the longevity and health of your EV.

 

[CyberGus]

The pack SoC is based on voltage. At 100% the voltage is ~ 4.3V per cell (?ish) and 0% is something like 3.2V (there is a defined range for each cell type). Being at "0%" is fine and will not hurt the cell, but dropping to zero volts will damage the cell, and the voltage will slowly drop due to internal discharge.

But does that take 1 week or 1 year? IDK, I can't find any data on that, although it should be very slow.

The BMS will stop charging the MV battery when the HV pack is depleted (1%?) so the short-term risk is getting locked out and being forced to jump-start. It's strange that you could still get the vehicle status with a 0% charge, so maybe the shop already had the MV battery disconnected and was using a power supply. ?‍

 

[HaulingAss]

Good question. Because, why else would an EV service center NOT put EVSEs in each bay? I don’t believe it would be cost. Right?

Simple. Because they don't need EVSE's in each bay.

 

[igs]

Any issues, future problems that can occur when the battery is depleted to 0?

Absolutely. 0% and 100% are the two worst things you can do to the battery.

 

[TexasRaider]

Simple. Because they don't need EVSE's in each bay.

That’s a solid point.

 

[Guylouis]

I they actually have to move the vehicle outside to the destination chargers to charge. They generally don’t have chargers inside. (Maybe for local code reasons. Even though “we” have chargers inside our own garages. Ha)
Before today, I thought every Service Center would have a charger at each service bay, but they do not. The only reason NOT to is for building code reasons. Right?

Most tesla service centers in the USA have at least one private on-site Urban and or Supercharger in the back. + the Level 2 chargers in the customer facing lot. This is especially true if they are a designated delivery center.

 

[JackCypher]

Consider that with a Gasoline car - no responsible repair shop would run your car out of gas completely. And it can cause damage although minor to the fuel system.

IMO: They should not allow your battery to drain to 0%... and Tesla will forget 'Who done it' when years later there is a warranty claim on the battery.

Also, there is the practical matter of how you move a 6,000 truck [cause how do your roll a dead EV?] to a charger....or do they somehow have a 40ft 000 gauge charge cable to connect your truck in situ to their charger?....cause likely they don't.

When my CT was getting the windshield replaced, it took over 10 days, I happen to stop by and saw they had my CT with no windshield completely open and uncovered near the shop rollup door. AND we have the fires in California within about 2 miles away.
It was not until I posed the issue of having the inside of my truck smell like smoke and shop debris floating in the interior - that they covered it.

 

[REM]

Consider that with a Gasoline car - no responsible repair shop would run your car out of gas completely. And it can cause damage although minor to the fuel system.

IMO: They should not allow your battery to drain to 0%... and Tesla will forget 'Who done it' when years later there is a warranty claim on the battery.

Also, there is the practical matter of how you move a 6,000 truck [cause how do your roll a dead EV?] to a charger....or do they somehow have a 40ft 000 gauge charge cable to connect your truck in situ to their charger?....cause likely they don't.

When my CT was getting the windshield replaced, it took over 10 days, I happen to stop by and saw they had my CT with no windshield completely open and uncovered near the shop rollup door. AND we have the fires in California within about 2 miles away.
It was not until I posed the issue of having the inside of my truck smell like smoke and shop debris floating in the interior - that they covered it.

This is why I trust absolutely NO-ONE in any service industry.

 

[Crissa]

I mean… there would be no way to prove it, the battery and drive train warranty are 8yrs/150k miles. If your battery shits the bed before then you're covered anyway… and really if it shits the bed after that, they will say that one time had nothing to do with it

It keeps a record of how you treat it, so it would tattle on you for not charging it.

While this would obviously be the fault of the body shop, it's still a pain.

It should not be left sitting around at a state of charge below 30.

Make sure they charge it!

-Crissa

 

[JackCypher]

It keeps a record of how you treat it, so it would tattle on you for not charging it.

While this would obviously be the fault of the body shop, it's still a pain.

It should not be left sitting around at a state of charge below 30.

Make sure they charge it!

-Crissa

Crissa,

..And these records are owned by them and reported 'half-assed' So they will know and tell you, YOU let the battery go to Zero...

However they will conveniently forget the GPS information shows the truck was clearly sitting at the repair shop for days...

However, it's your truck and your responsibility. So the owner should escalate the issue with the shop.

Regards
Jack

 

[AlDente]

Most tesla service centers in the USA have at least one private on-site Urban and or Supercharger in the back. + the Level 2 chargers in the customer facing lot. This is especially true if they are a designated delivery center.

I'm fortunate to have 2 Tesla Service/Delivery Centers within a 10-30 minute radius. One has the minimal number of chargers due to space limitations. The other Delivery Center has 30 Superchargers the majority of which are 250kw. They separated that facility and located a new modern Service Center portion to a location 5 miles away. They really do get some things right ...

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