1200 battery problems

Key ON/OFF

Cjack,

Wasn't aware that one could do the key trick. I'll try it. Frankly, with the ring terminal pigtail hard-wired to my battery with its convenient SAE connector, I don't see a lot of advantage, if any, charging through the accessory port. I charge with the key off.

Pete

Me too...directly to the battery. It was interesting as to just what BMW had in mind though and how they did it. I thought at first that only the BMW charger (the over $120 dollar one) some how was necessary to keep the port open when the key was turned off, but it turned out that any charge current thru the port would keep it open until the charger went to float. Add to that, I think the characteristics of the port operation has changed from '05 until now.
I just put a charging wire onto the battery as you however. I actually use the Gerbings pigtail which I need there anyway...and it's fused, etc.

Please go to this site and look at the application guide:

http://www.odysseyfactory.com/powersports.html


PC680 for the K1200RS,LT sealed unit.


The ODYSSEY?« battery can handle it.
Featuring rugged construction and packed tightly with pure lead plates, the non-spillable AGM design ODYSSEY battery protects against the shock and vibration that can quickly destroy other batteries. And the pure lead plates mean more powerÔÇötwice the overall power and three times the life of conventional batteriesÔÇöup to 400 cycles at 80% depth of discharge!



BMW does not make batteries or chargers they just slap there emblem on what they approve. Granted they only approve quality stuff but you will pay for the privilage of having there logo on your purchase.

K1200R Sport 2 yrs old. Battery died and I use battery tender. But I was lucky had about a month left on warranty, dealer replaced it.

mrreese said:

Just picked up a new leftover '08 K1200S and I'm having an issue with the battery. The dealer tells me that if the bike is left dormant for more than 2 days, it must be hooked up to a tender. Supposedly the computer's draw is enough to drain a fully charged battery in a matter of days. This sounds absurd, since my other BMW's can sit for 2 months with no charger, and still start. Any feedback on this will be appreciated.

Click to expand...

There has been some discussion of this over on the i-bmw.org site..seems that a few have found that their ABS modual was at fault and remained on and did not cycle off after the key was in the off position thus there was a drain of the battery. It was found by a BMW Tech Rep that was called in to diagnose the problem.

I had an accessory mounted option with a relay that had shorted to the on position that drained my battery on my '08 K1200S. Problem was discovered by my local dealer after bike didn't start after sitting for about a week..fyi..battery was replaced under warranty by same dealer...

Regards,

Clay
Kimberton,Pa.