BMW R1200R R1150R/T F800 K1200R R1100R/T R1250R RnineT Message Board

I read some instructions somewhere on this board about the proper method for using a Battery Tender through the auxiliary power adepter (powerlet). Something about once it goes into maintenance mode, you need to reset something because the bike turns off the adapter. I have searched for this but can't locate the instructions for the workaround. Can someone please point me to these or explain it again? Will put a direct connection to the battery when I get around to it.

Isn't this for can-bus motorbikes only ? The power socket (at least mine) remains powered.

I don't remember ever hearing or reading that. For a time I used the powerlet with my tender without issue. I later installed a pigtail straight to the battery. If it does indeed turn off the plug I'm sure cycling the ignition on and then off again would restore the power to the powerlet. The only other "reset" I've ever heard of is resetting the Motronic engine computer after any service that involved disconnecting the battery.

I've been using the accessory outlet to charge my '02 R since I got it, no issues about leaving it connected with a battery maintainer so far .
The only issue that I have had, is upon removing the plug fron the socket assembly, somehow I am causing a short and then a fuse melts, it also powers the clock, so if your clock stops, check the fuse, I think it's a 7 amp brown fuse .

Not all battery tenders are created equal when it comes to gel batteries.
The BT Jr. will cause problems. The BMW gel charger has not failed me yet.
If your accessory socket is not charging the battery, its bad and needs replacement. I shorted mine out at Hungry Mother a few years ago and needed a new one.


I have a shed, no garage. Shed has great southern exposure all day long. So, I made a solar battery tender. About half the price of a tender, and no power required, has pig tail and cigarette adapters so I can switch between the Beemer and the cb Honda.

Powerlet, solar panel, couple of screws








http://www.batterymart.com/p-50102-2_5- ... panel.html

http://www.revzilla.com/motorcycle/powe ... et-adapter

I have been using the power accessory outlet to trickle charge and power my electric clothing for 12 years with no issue. No reset necessary.