[Major_90]

Hey Folks,

Got another "low battery" warning today so decided to go ahead and get a new battery as well as a scan tool. After looking through the posts I chose these two items:

My current battery is white (flooded, non-agm). I am going to replace it with this one ($149)
http://www.oreillyauto.com/site/c/de...keyword=49-ext

After looking into Carly and a few other scan tools, I decided to go with the Schwaben (on sale for $179 with no tax (WA) and free shipping):
https://www.ecstuning.com/b-schwaben...020sch01a~scf/

What do you all think? Good decisions?

[Nadir Point]

I've been considering buying a better scan tool myself. That looks like a nice unit, but BMW-only? I was starting to settle on the CRP129. It can do many more cars for not much more money. I wonder if it's missing alot of BMW functionality you might need...

[Major_90]

Actually ended up getting the battery for $119. Orielly's matched Autozone's 20% off coupon. Not bad for a $200+ battery...
This is the one that I got (49EXTJ)
http://www.oreillyauto.com/site/c/de...itemDetailTab_

This battery is 100AH though (The reserve capacity is, not sure if this is the same as AH).. Is that ok or can I no longer just register the battery? EDIT: I am actually not sure if this is the correct AH rating. Using the formula from this thread: http://www.e90post.com/forums/showth...=473109&page=2
"To my understanding to figure out the AH rating what you need to do is divide the RC (reserve capacity) by 2 and add 16" my AH is 91. So I should be fine if that is correct.

When I look at the compatible list of cars it goes up to the 2010 335d, but not the 2011...

Here is the coupon (expires 11/27) http://shop.advanceautoparts.com/o/c...tm_content=m62

Nadir Point Only got the beamer right now... Also figure I could sell it along with the car if that day comes.

[Major_90]

Found this also mentioned on another post: http://www.e90post.com/forums/showth...=713372&page=2 (number 43)

Amp/Hours = (Reserve Capacity / 2) plus 16 (i.e: If your battery had a Reserve Capacity of 100, you would get 66 AH rating)

or 50% multiplied by Reserve Capacity plus 16= the ah value (.50 x rc + 16=ah value)

So I think I am OK with this battery as the math comes out to 91AH.

Thoughts (other than damn BMW does not make this easy..)?

[Torqu3]

Let me know the functionality of that scan tool. I've been eyeballing it for a long time. Main things I'll need it for is diagnostics(obviously), priming the fuel pump after filter install, DPF regen, and registering a new battery. If it has coding functionality like Carly does, then even better. Maybe a quick write up if it isn't too much trouble? Thanks! Looks like good purchases to me!

[Major_90]

Anyone have any input on this battery: http://www.oreillyauto.com/site/c/de...itemDetailTab_