Incorrect Battery Ah Coded

[gjm120]

My car had a 90Ah flooded cell battery that died. I could only find an 80Ah replacement (flooded cell also).

I have the Schwaben/Foxwell scanner tool which can only do battery registration (tell the car a new battery was installed). So my car will charge the new 80Ah battery as if it's a 90Ah. Is this likely to shorten my battery life by an over-aggressive charging pattern?

I recall reading somewhere that the car only will charge to 80% capacity, so maybe I'm concerned over nothing. Don't really feel like buying Carly or paying for coding if it isn't necessary.

[gjm120]

bump for any opinions on this^^

[Havocsteve]

You need to register the battery with the car. If you don't, you could overcharge or undercharge. Your car will also freak out over the slight voltage drop or increase. They are sensitive to this. Take it to an Indy dealer if you have to. I would hate to ruin something because you didn't want to pay for a battery registration.

[gjm120]

Originally Posted by Havocsteve

You need to register the battery with the car. If you don't, you could overcharge or undercharge. Your car will also freak out over the slight voltage drop or increase. They are sensitive to this. Take it to an Indy dealer if you have to. I would hate to ruin something because you didn't want to pay for a battery registration.

Sorry if my post was unclear - I did register the new battery. But the tool I had couldn't change the Ah rating so the car thinks it has a new 90Ah battery when in fact it has a new 80Ah battery.

[Havocsteve]

Originally Posted by gjm120

Sorry if my post was unclear - I did register the new battery. But the tool I had couldn't change the Ah rating so the car thinks it has a new 90Ah battery when in fact it has a new 80Ah battery.

Take it in to get coded properly. You could experience headaches down the road. These cars are just dumb when it comes to voltages across the board. One thing out of wack just causes headaches with other things.

[The Wind Breezes]

I did something similar except my replacement battery was even smaller. Still haven't recoded and it's been like 2 years.

[Dackelone]

Over charging via registration is a BAD idea. I remember the video of a e90 owner who did so... only to have his battery explode and his battery pyrotechnic cable go off as well. Not a cheap fix. lol

[NorthernDancer]

Well I disagree with most. I think you'll be perfectly fine. Your car knows it has a new battery and will charge it correctly; it'll just charge it up sooner-it won't over charge it.

[gjm120]

I tend to agree with the not to worry camp. After all it's not a huge difference in charging profile. But, I'm anal so will probably bite the bullet and get Carly or pay a shop to do the 80Ah coding.

I found a thread on the E90 explosion. I think the conclusion was the BST blew because of a loose cable. I appreciate that the conclusion may not be.... conclusive.

Some light reading (Warning: Contains Strong Language) http://www.e90post.com/forums/showth...468750&page=15

More input is welcome. Thanks.

[Gangplank]

Carly app, dongle, fix it.

[gjm120]

Originally Posted by Gangplank

Carly app, dongle, fix it.

There is a good indie shop very close to me. If they won't do it for a good price, I'll go the Carly route. Carly is a bit redundant for me (except battery coding) since I have the Foxwell tool.

[gjm120]

Another idea on which I'd appreciate opinions - can I code the 80Ah battery with NCS Expert (or NCS Dummy) and just be done ? The car already has a new battery registered. The coding part doesn't seem too difficult reading the post by bNks334.

I'm just trying to think of something I can do quicker than ordering the Carly dongle, save some money and start to learn a little about coding.

[Gangplank]

Originally Posted by gjm120

There is a good indie shop very close to me. If they won't do it for a good price, I'll go the Carly route. Carly is a bit redundant for me (except battery coding) since I have the Foxwell tool.

Which Foxwell do you have? It looks like this one can register & change capacity.

http://blog.obdii365.com/2017/10/11/...nt510-scanner/

[Gangplank]

Originally Posted by gjm120

Another idea on which I'd appreciate opinions - can I code the 80Ah battery with NCS Expert (or NCS Dummy) and just be done ? The car already has a new battery registered. The coding part doesn't seem too difficult reading the post by bNks334.

I'm just trying to think of something I can do quicker than ordering the Carly dongle, save some money and start to learn a little about coding.

Looks like it's possible.

https://www.1addicts.com/forums/show....php?t=1338304

[gjm120]

Originally Posted by Gangplank

Looks like it's possible.

https://www.1addicts.com/forums/show....php?t=1338304

That's the thread I was reading. Looks doable but a bit intimidating to me.

I've got the NT510 but it won't change battery rating or type. I thought it did till I tried. If I had known it couldn't, I would have searched harder for a battery of the same rating.

The link you posted about the Foxwell says something like if you change the battery rating or type you need to perform coding. It's a bit misleading because you need to code but can't do it with the NT510. The scanner itself says to use Progman to code a different battery. I think Progman won't even work on newer BMW's.

I really like the NT510 and from what I've read it's better at diagnostics than Carly. Just wish the damn thing could code a new battery.

[JimD]

Yes, NCS expert will change the car from a 90 to a 80 Amp hour battery. How do you know what you have, however? In the U. S., the amp hour rating is not usually available. I have not done this coding, yet, but I have done several other things, years ago, with NCS Expert. Each time, I run a tutorial to be familiar with the routine, then I make my changes. The main thing I got it to do is to allow me to put my top down with the key fob - I do not have comfort access. Everything I have done is just download the portion of the software that has the setting I need to change, make the change in a wordprocessor, save the file, and then upload it. I do not speak German so many of the things do not make sense but it works. When I have to replace my battery, if I can find my cable, this will be my first choice. Carly is my second choice.

[gjm120]

Originally Posted by JimD

Yes, NCS expert will change the car from a 90 to a 80 Amp hour battery. How do you know what you have, however? In the U. S., the amp hour rating is not usually available. I have not done this coding, yet, but I have done several other things, years ago, with NCS Expert. Each time, I run a tutorial to be familiar with the routine, then I make my changes. The main thing I got it to do is to allow me to put my top down with the key fob - I do not have comfort access. Everything I have done is just download the portion of the software that has the setting I need to change, make the change in a wordprocessor, save the file, and then upload it. I do not speak German so many of the things do not make sense but it works. When I have to replace my battery, if I can find my cable, this will be my first choice. Carly is my second choice.

You're right about Ah not usually available but RC is and the correlation is good. The battery's RC is 140. Using the usual rule of thumb RC/2+16 gives 86Ah. I've come up with a more accurate formula by running a regression of a bunch of known RC and Ah's and that gives an Ah for my new battery of 81.

FWIW an indie shop that can do the coding will do it for $67 but told me not to bother. I will do that before spending all the money Carly now want. Hell, for buying the dongle, the app and the battery add-on I can just go find a 90ah battery and register it with the Foxwell NT510

[Happy Jose]

All scanners will do is register the battery. If you are going to an AGM battery from a flooded, vice versa, or different AH rating, you need to have the battery coded before you register it. The easiest thing to do is replace with an identical battery or something close and register it with a scanner.

However, spending a hundred bucks is chump change. Why are you even concerned about it? If you are, you should be driving a Prius.

[gjm120]

Originally Posted by Happy Jose

All scanners will do is register the battery. If you are going to an AGM battery from a flooded, vice versa, or different AH rating, you need to have the battery coded before you register it. The easiest thing to do is replace with an identical battery or something close and register it with a scanner.

However, spending a hundred bucks is chump change. Why are you even concerned about it? If you are, you should be driving a Prius.

I know about registering v coding. ( thought that was evident in the thread) I couldn't find a 90ah flooded cell battery quickly so went with the 80ah. Most Foxwell/Schwaben owners still think the tool will code.

Yea $100 isn't going to change my life, but, no one wants to spend it if not necessary - or on something more fun than battery coding.

Saving up for the Prius also.

[Ronin135]

Let's see... you own a car that is definitely worth keeping it in good mechanical condition correct? So a Carly dongle is like $75 bucks plus the program another $45. With all the functions that it can do for your 1er your afraid to spit out $100 bucks.... geez you might as well sell it now. The Carly is worth the money! you will save money down the road just having the ability to read your diagnostics.

[gjm120]

Originally Posted by Ronin135

Let's see... you own a car that is definitely worth keeping it in good mechanical condition correct? So a Carly dongle is like $75 bucks plus the program another $45. With all the functions that it can do for your 1er your afraid to spit out $100 bucks.... geez you might as well sell it now. The Carly is worth the money! you will save money down the road just having the ability to read your diagnostics.

I don't need Carly to read codes or show diagnostics. I think I might have mentioned (mild sarcasm) that I have the Foxwell NT510. It's a good diagnostic tool. I'm sure I'd find some things I would like, but for now I don't care to do any of the bells and whistles coding that Carly can do.

I'm actually digging in and trying to decide if I want to set up and use INPA or Rheingold. This could necessitate getting a dedicated laptop so I'm not being a cheapskate. The car only makes a few short roundtrips a week so no big hurry.

As an aside, isn't Carly now a annual subscription? What happens if you don't renew? Does the app go dead or just not update?

[methodz]

Carly is an annual subscription when I got it like 2 months ago. I think it's like $69/year now. It changed from the moment I ordered the Carly dongle till the moment it got delivered to my house and I much prefer the old method of just buying the app straight up and paying for features. Sucks