BMW Advanced Battery Charging System

[Dartanium]

even with the panel, don't you need to remove it so you can attach the clip foe ground? that is clean though with the socket panel

[Romo1]

Albert, yes the pix you showed are essentially the same as what is sold by BMW without the BMW logo. Deltran makes (yes in China) 2 types for BMW - one with the plugin only and other with the clips. Unless you can hardwire a 12v socket, get the one with clips and go to the trunk or under the hood as all have mentioned. BMW charges $69 for what Amazon charges about $25 less. Bet you can get it cheaper. Bet I could last the winter w/o it, but don't want to potentially lose the battery and all those CDs I loaded into the car's hard drive.

[Technic]

Originally Posted by doba_s

Elias did you run the power to the socket straight from the battery ?

do you have a part# for the panel ?

There's a 5A fuse between the socket and the battery in my setup: http://www.bimmerfest.com/forums/sho...d.php?t=326200

You can either get the socket with a new trunk trim with the mounting hole already made or just get the socket and cut a hole in your existing trunk trim.

[AwesomeM3]

Originally Posted by tom @ eas

I actually just tested this yesterday, the underhood battery terminals were not affected by IBS and did not cut off.

+1 The negative terminal works just fine, they do not cut off.

Originally Posted by albert1028

Isn't this "BMW Advanced Charging System" just a relabeled "battery tender plus" brand battery tender.



Sorry for the large resolution pic, i copied the image link from the manufacturer.

I would bet that BMW would charge more than what the street price on the battery tender plus is going for?

Yes, the BMW system is a rebranded Deltran Battery Tender. It's cheaaper than the BMW one, and work exactly the same.

[doba_s]

Originally Posted by Technic

There's a 5A fuse between the socket and the battery in my setup: http://www.bimmerfest.com/forums/sho...d.php?t=326200

You can either get the socket with a new trunk trim with the mounting hole already made or just get the socket and cut a hole in your existing trunk trim.

Cool !

Do you know which plug will connect to the (+) terminal ? JonM was talking about it but didn't see the part number ?

[han405]

I've been using the harbor freight Float charger bought on sale together with 20% off over a year ago..
I think I paid less then $6.00 for it..

http://www.harborfreight.com/cpi/cta...emnumber=42292

[Simmad555]

(part # 82 11 0 026 663) is apparently not meant for the e92 M3. The one I have is (part # 82 11 0 406 881), which connects directly to the battery and not through the 12v outlet.

As mentioned before it is a re-branded Deltran, as there is Deltran paperwork in the packaging.

[bimmertt]

Originally Posted by han405

I've been using the harbor freight Float charger bought on sale together with 20% off over a year ago..
I think I paid less then $6.00 for it..

http://www.harborfreight.com/cpi/cta...emnumber=42292

I am also looking at this as a cheap alternative but I noticed that it specifically says "Not for use on AGM batteries." Aren't our cars equipped with AGM batteries?