@#**&^%$#@ BMW Batteries! - K-Bikes.com - Excellence in Motion
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post #1 of 17 (permalink) Old Dec 4th, 2009, 12:26 pm Thread Starter
pmorritt's Avatar
Join Date: Aug 2006
Location: San Rafael, Ca, USA
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Angry @#**&^%$#@ BMW Batteries!

First BMW Gel battery lasted 1 1/2 yrs before going south. Like an idiot got another for $125 +tax. Has been getting cold and yesterday am was 36f- @#^%*** battery no-go. Just a little juice for dash but no go-. 18 months on that one. Marched me self to BatteriesPlus store and got an Odyssey PC680MJ--not cheep-$149, but judging from others the way to go. Threw it on charger over nite and measured 15.23 at posts-no load. Put it in this am-just had to put some faucet cone washers on the top side of screw that holds down the bar that holds the battery in place. Had to remove the big rubber stopper under the screws. Used some dielectric grease on the posts after re-attaching the leads. With the gel battery, even when new she cranked a few times b4 starting, hit the go button and J-Low kicked over like someone just grabbed her butt . Fool me once-shame on you-fool me twice-shame on me. Odyssey even came with a 36 month warantee!!!

Marin Phil
2013 K13S-Anniv ED
'06 K12GT Blue of course!_Sold-too many problems
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about 30 before that but too old to remember them all..
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post #2 of 17 (permalink) Old Dec 4th, 2009, 12:40 pm
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Batteries do much better when the bikes are ridden an a regular basis. I've never had to replace a battery on a bike that I use for commuting. I get 4+ years out of a battery and end up getting rid of the bike before the battery goes south. Perhaps a better charger would help if you don't ride frequently.


06 K1200R Corbin w/ smuggler, Wilbers shocks, PCIII, Factory Pro Dyno tuned, CC Suspension plates, Vario levers, Dual Evo filters, Leo Vince SBK, V1, Zumo 550

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post #3 of 17 (permalink) Old Dec 4th, 2009, 12:42 pm
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Yep, the Odyssey rocks. But you should've asked here first. Here's a place to buy an Odyssey for $109, free shipping:


The metal jacket version isn't on quite as good of a sale, but I was able to buy a PC680-MJ from a local battery store for $110 + tax but no shipping, since it was in stock.

Either way, your battery problems are now solved.

Pacific NorthWet
'13 Dark Graphite Metallic K16GTLD, 24K miles and counting...
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BMWLT#145, IBA# 366, MOA# 111996, SCMA# 24032

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post #4 of 17 (permalink) Old Dec 4th, 2009, 3:16 pm
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i got mine few months ago from Battery Plus for $89.00. The guy that works there told me that the motocycle cop use it all the time for thier BMW bikes. Working good up to now.

2006 K1200GT
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post #5 of 17 (permalink) Old Dec 4th, 2009, 10:16 pm
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Seeing that you guys all have Odisseys, you might want to look at the Technical Manual for them, all sorts of info on charging Etc.....


And this site here has about all you ever want to know and more on AGM,Gel and Lead Acid.

http://www.batteryfaq.org/ You have to go all the way to the bottom of the page for "Home", then find chapter 9 on charging, but they have everything in there.....!

In Canada, BMW sells their Gel Batteries for $280.00 with taxes.....
That's what the previous owner of my bike paid for.....

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post #6 of 17 (permalink) Old Dec 5th, 2009, 4:37 am
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Not Cheap!!!!!!!!!!!

Down here we carry our own vaseline to ease the pain!!


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post #7 of 17 (permalink) Old Dec 5th, 2009, 6:13 am
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post #8 of 17 (permalink) Old Dec 5th, 2009, 7:34 am
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My Harley has a AGM in it, I replaced it after 4 years with about 65,000 miles on it. It even went though 2 stators and one regulator. If I don't ride it or if the weather is turning cold I keep it the tender.

If the GT's battery is 2.5 to 3 years old should I get a battery for "just in case"?
Are there any signs for fatigue on the battery or is it just going to go out?

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post #9 of 17 (permalink) Old Dec 6th, 2009, 11:20 am
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Originally Posted by HillbillieBeemer
My Harley has a AGM in it, I replaced it after 4 years with about 65,000 miles on it. It even went though 2 stators and one regulator. If I don't ride it or if the weather is turning cold I keep it the tender.

If the GT's battery is 2.5 to 3 years old should I get a battery for "just in case"?
Are there any signs for fatigue on the battery or is it just going to go out?
I can't speak for you or the others, here, but it took me almost 30 years of motorcycle battery failures to learn that sometimes a battery will indicate that it is failing, and sometimes not.

The last time my battery failed, there was no advanced warning. I pulled up into a gas station, turned off the engine, and filled up. When I went to start the engine, there was nothing. My wife was not available, and I was on my own. I used AAA to call for a tow home. While I waited, someone stole my laptop from under my eyes. It took several hours to get home, and that doesn't cover the hassles of replacing the laptop and restoring the backup the next day.

I finally learned that it is not worth the hassle to wait for the battery to fail. I have decided that a prophylactic (alright, preemptive) replacement of the battery is so worth it. Batteries will fail. It is inevitable. And I hate being stranded without warning. It always seems to happen at the most inopportune moment.

Let's say that you are wasting 25% of the battery's useful lifetime by replacing it early. For the batteries that we have been discussing here, that comes out to approximately $30. If you replace an ordinary gel battery every two years, it comes out to $15 per year for "Battery failure is not likely to leave me stranded without warning" insurance. It seems like a bargain to me. I realize that batteries can experience premature failure, but I suspect it is rare.

Note that Odyssey batteries will last much longer than two years. Based on the experiences of others, I will consider replacing the Odyssey after four years or so, which brings the "insurance" down to $7.50 per year.

For me, it is as simple as that. I don't understand why I lived with being stranded unexpectedly due to "old battery suddenly fails" for so many years.
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post #10 of 17 (permalink) Old Dec 6th, 2009, 1:19 pm
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The day, my bike warranty is up or the 3rd winter , I get an Odyssey. They never fail ( almost).

Deep Blue 2009 K1300GT
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