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BMW battery tender help


Stephen_Chase

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Stephen_Chase

I recently picked-up on eBay a BMW battery tender (BMW part # 72 60 7 679 040) for use on my R1100 RT.

 

Does anyone have the user guide for this unit you can send me?

 

I am using to charge a Odyssey in my '96 R1100RT. In the first use the lite display gradually shifted from red to green over a couple of hours. Last time I tried it it stayed red & did not transit to green. Why did this happen?

 

Thanks!

Stephen

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Yes, the BMW unit is made by Deltran. The charging may take hours. Red is not charged, Green is charged. Flashing green is somewhere between 80% and fully charged. That code should be printed right on the unit.

 

-MKL

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harleyjohn45

i bought a battery tender a few years back.. i think it was about 65.00 then. if failed right away. i threw it away and started buying the 600 ma battery maintainers from harbor freight. i buy them on sale at 4.95 each. i have about 15 of them in use, even on cars, airboat, tractors, & lawn equipment. they work great. good luck with your tender, i was not so lucky.

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Jerry Johnston

I've found I have to sometimes hook every thing up 1st then plug it into the wall. I started with a cheap Deltran purchased from Harbor Frieght but it kept screwing up my clock when I used it. I've used the Battery Tender for the last 8 years with out problems.

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Stephen_Chase

Would you have a user guide for your unit you might copy for me?

 

Persistence pays off. For the group, I left the unit plugged in and it eventually transitted to yellow then green. I am much amazed at the parasitic load these bikes have.

 

I would add that Rusty at Max BMW is very helpful.

Stephen

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I've found I have to sometimes hook every thing up 1st then plug it into the wall. I started with a cheap Deltran purchased from Harbor Frieght but it kept screwing up my clock when I used it. I've used the Battery Tender for the last 8 years with out problems.

 

The directions say this is a must.

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Jerry Johnston
Would you have a user guide for your unit you might copy for me?

Steven here is the exact location of the users guide and trouble shooting guide. web page

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Stephen_Chase

Thanks Jerry & all. The advice regarding attaching the plug-in to the bike before connecting to AC solved the problem. Cheers!

clap.gifStephen

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