My first week, no one died

[Flexray]

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Assuming most new cars are "always" on how does one safely replace the battery without killing the computer? I had a similar issue when my kids killed my battery and I had to replace it.

I remove and restore power to computers every day, and almost never have a problem. It actually usually goes the other way. If I have a dead computer, I will remove and restore the power, and sometimes they come back to life. I think battery disaster technician just drew the short straw that day. He was the one in a million. I always remove the negative then the positive. Install the negative then the positive.

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You won't always be able to get away with it, but you can buy "memory savers" that power the 12v via the ODB2 port or via cigarette lighter plugs for vehicles that have an always-on port.

Pin 16 on the data link connector (obd connector) is always powered (terminal 30). Battery savers apply power to this terminal to keep terminal 30 alive during a battery change so nothing looses their memory. This works on old cars, not so much on new cars. Power distribution is massive, and mostly computer controlled. There are multiple terminal 30's, usually 30a through 30g, at least on German stuff. The power saver will power one terminal only.

When you use a battery saver, there will always be 12v at the positive battery terminal. This is a problem. Manufacturers are starting to put batteries in holes in the floor or trunk. You have to claw this big ass heavy battery out of a tiny metal hole. If the positive battery terminal touches anything metal, it is going to short to ground and blow the Pyro fuse on the battery cable. That is a few thousand dollar oppsie. Would not recommend.

[J-D]

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I remove and restore power to computers every day, and almost never have a problem. It actually usually goes the other way. If I have a dead computer, I will remove and restore the power, and sometimes they come back to life. I think battery disaster technician just drew the short straw that day. He was the one in a million. I always remove the negative then the positive. Install the negative then the positive.



Pin 16 on the data link connector (obd connector) is always powered (terminal 30). Battery savers apply power to this terminal to keep terminal 30 alive during a battery change so nothing looses their memory. This works on old cars, not so much on new cars. Power distribution is massive, and mostly computer controlled. There are multiple terminal 30's, usually 30a through 30g, at least on German stuff. The power saver will power one terminal only.

When you use a battery saver, there will always be 12v at the positive battery terminal. This is a problem. Manufacturers are starting to put batteries in holes in the floor or trunk. You have to claw this big ass heavy battery out of a tiny metal hole. If the positive battery terminal touches anything metal, it is going to short to ground and blow the Pyro fuse on the battery cable. That is a few thousand dollar oppsie. Would not recommend.

Makes sense, my vehicles are all basic enough it's not a big deal

[G-ZUS]

Was it a late 2000s BMW?

[Flexray]

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Was it a late 2000s BMW?

It was

[vtec]

Which independent shop is this?

[Flexray]

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Which independent shop is this?

This was intentionally left out. I loose free speech when names are named.

[DonJuan]

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It was

He'll be back

[Flexray]

Well, battery disaster technician has been fired. And his replacement is actually a very good technician, this makes everyone's lives better.

[Disoblige]

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Well, battery disaster technician has been fired. And his replacement is actually a very good technician, this makes everyone's lives better.

Just know in the white collared world, same guy would still be employed, probably promoted to management position, and then go on paid stress leave for a year.

[ThePenIsMightier]

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..., probably promoted to management position, and then go on paid stress leave for a year.

Intrasted...

[DonJuan]

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Just know in the white collared world, same guy would still be employed, probably promoted to management position, and then go on paid stress leave for a year.

Any unionized permanent position. Short Term, Long Term, I'm Back!, Repeat.

[Flexray]

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Just know in the white collared world, same guy would still be employed, probably promoted to management position, and then go on paid stress leave for a year.

Why? Why put up with that?

The second it became apparent that this guy was not working out, a job ad went up and an effort to replace him was started. It took a few months but he was replaced with someone better. This business is now better off because of this.

Let's say battery disaster technician got put in the shop foreman position. Going on some sort of leave is going to cause problems, this position requires you to be at work every day, the shop will not function without this position. If he sucks and pisses off the other technicians, they will quit and go work somewhere else. Technicians are the revenue generators. Without them, you don't have a business. Putting the wrong person in charge can end your business.

[g-m]

Well the theory is sound. The execution is where companies fall down

[vtec]

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This was intentionally left out. I loose free speech when names are named.

Can I take a stab at it? Didn't take long after doing some research on your last post with the Audi Timing chain replacement.

[Flexray]

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Can I take a stab at it? Didn't take long after doing some research on your last post with the Audi Timing chain replacement.

I work in a fairly small community so I'm sure it's not very hard to figure out who someone is.

If the shop I work for gets named, I am now representing them in my posts. Realistically, I will probably close my account and find another place to post. If it makes you feel powerful, by all means.

[Gman.45]

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I work in a fairly small community so I'm sure it's not very hard to figure out who someone is.

If the shop I work for gets named, I am now representing them in my posts. Realistically, I will probably close my account and find another place to post. If it makes you feel powerful, by all means.

I think we all fully support your opinion and position regarding this specific matter Flexray. In defense of vtec, he did ask you first here if he could take a stab at it. Asked and answered. I commend you both and it's a small post like this that should get both members rep points IMO.

Considering the power of Beyond CSI, and even without it for the reasons Flexray mentioned such as the small size of this community, figuring "it" out wouldn't take longer than a few minutes, so I hope that we can all put curiosity aside and give Flexray the room he needs in order to continue to operate here and give us all these incredible reads. You're a gifted writer Flexray, and the first thing I check for every time I open Beyond is for a new mechanical/tech post from you.

[killramos]

Doxing is for losers

[Disoblige]

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Can I take a stab at it? Didn't take long after doing some research on your last post with the Audi Timing chain replacement.

Stop ruining shit.

[vtec]

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I work in a fairly small community so I'm sure it's not very hard to figure out who someone is.

If the shop I work for gets named, I am now representing them in my posts. Realistically, I will probably close my account and find another place to post. If it makes you feel powerful, by all means.

I'll leave it as is. Continue on with the posts.