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Is there a way to disconnect the battery from all electronics in the car

MacsEV

Member
Apr 9, 2019
12
23
Meaford, ON
I talked with a first responder who told me he could rescue ( cut ) someone out of a crashed ICE car in 5 min.. but it would take 15 min or more ( having to look up cable routing) to cut someone out of a Tesla due to worries about high voltage wires running thru the car.. and.. says he.. The wiring diagrams assume that the car is largely intact and wiring is where it’s supposed to be.

So.. my question is .. Is there a way to quickly and totally isolate the battery ( a simple accessible mechanical switch would be nice)

This would be very cool for first responders or vehicle and body repair service persons who are nervous about working on a Tesla
 

Silicon Desert

Active Member
Oct 1, 2018
3,598
3,493
Sparks NV / GF 1
Something doesn't' sounds right about his statement. There are no high voltage lines running through the pillars and upper frame which is where they typically cut to extract people from a car. Confused about that statement. Sounds like he hasn't researched this much or had any training on a Tesla or else he would know that.
 
Last edited:

StealthP3D

Well-Known Member
Dec 12, 2018
9,737
77,632
Maple Falls, WA
I talked with a first responder who told me he could rescue ( cut ) someone out of a crashed ICE car in 5 min.. but it would take 15 min or more ( having to look up cable routing) to cut someone out of a Tesla due to worries about high voltage wires running thru the car.. and.. says he.. The wiring diagrams assume that the car is largely intact and wiring is where it’s supposed to be.

So.. my question is .. Is there a way to quickly and totally isolate the battery ( a simple accessible mechanical switch would be nice)

This would be very cool for first responders or vehicle and body repair service persons who are nervous about working on a Tesla

I agree with S.D. that the high voltage is all down low, away from where you would typically cut. But, for extra safety, there is a visible loop of wire with an orange first responders icon on it. The proper protocol is to cut that to disable high voltage throughout the vehicle (before cutting into it). It appears the first responder you spoke with is not properly educated about EV's (or chooses not to be).
 
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Ande

Member
Jul 28, 2017
740
543
Norway
Incompetent rescuers is a bigger danger to you.
That dumbass could stop spreading his fear of technology, or electric cars, and just read up on the procedures, which are available to anyone, especially first responders.
If that takes 15minutes to read, illiteracy is the real problem. :)
 
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ewoodrick

Well-Known Member
Apr 13, 2018
5,285
3,735
Buford, GA
Right next to the battery is the high voltage cut-off connection. Same cutters for the battery can be used on the HV. As Ande linked, detailed information available

That's also what all those icons in the hood are.
 

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