Battery Tender - BMW Luxury Touring Community
 
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post #1 of 10 Old Nov 8th, 2011, 11:43 am Thread Starter
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Battery Tender

Does it make a difference what battery tender I putchase ? Also, Is the connector from the cable on the battery a universal connector, or is the plug Brand Exclusive ?

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post #2 of 10 Old Nov 8th, 2011, 11:53 am
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Re: Battery Tender

I've used both of these on my 2009 RT with no issues.
http://batterytender.com/motorcycle/...emisphere.html
http://batterytender.com/motorcycle/...-at-1-25a.html
The connector that comes with either of these is an SAE connector and can be used to plug other accessories into like a phone charger or some electric riding gear.

Don
2009 R1200RT
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post #3 of 10 Old Nov 8th, 2011, 12:09 pm
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Re: Battery Tender

Technically, yes it does matter and it is dependent on what type of battery you have. Gel batteries have higher internal resistance and need higher voltage chargers than lead acid (both convention and sealed, i.e. SLA). IIRC, AGM are in between the two. They are lead-acid as well but the construction results in higher internal resistance than conventional designs.

That being said, most of the higher-end tenders have the correct charge curves for multiple battery types. Just check the recommendations from your battery vendor and the charger vendor for compatibility.

Dave
-2000 K1200LT
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post #4 of 10 Old Nov 8th, 2011, 12:25 pm
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Re: Battery Tender

"some electric riding gear."
The key there is "some". My vest is also SAE, but the wiring for the Battery Tender is too light to run the vest safely. On the other hand, the wiring supplied with my vest will easily handle the Battery Tender, so use caution there.
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post #5 of 10 Old Nov 8th, 2011, 1:24 pm
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Re: Battery Tender

For connecting I use a powerlet to sae connector. You plug it into your front aux power port, I can run my air compressor or tender from it. I carry the connector in the mirror box in the trunk.

http://www.powerlet.com/product/powe...uty-cables/315


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post #6 of 10 Old Nov 8th, 2011, 1:32 pm
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Re: Battery Tender

I use the $20 motorcycle tender from Walmart, comes with a quick disconnect fitting that you can use one of 2 supplied connectors, either alligator clips you can clip on to the battery, or eye connectors you can bolt to the battery connectors, and it just plugs in to the tender. the connector is insulated by rubber, so no worries about disconnecting and just putting it under the seat until you need it again.

RICH CANNON
2000 K1200LT "a great ride"
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post #7 of 10 Old Nov 8th, 2011, 2:49 pm
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Re: Battery Tender

Quote:
Originally Posted by casualemt
I use the $20 motorcycle tender from Walmart, comes with a quick disconnect fitting that you can use one of 2 supplied connectors, either alligator clips you can clip on to the battery, or eye connectors you can bolt to the battery connectors, and it just plugs in to the tender.
I have one of these and a battery tender junior. Both seem to work identically. I use them on my 2 motorcycles and my john deere lawn tractor. Looking at the Walmart one, I have a strong suspicion that it's made at the same factory as the Battery Tender Junior.... Having said that, I'm always on lead acid or the AGM batteries - have never tried a gel.

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Prior rides:
Suzuki GS425E (Australia)
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post #8 of 10 Old Nov 8th, 2011, 3:44 pm
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Re: Battery Tender

I am using the Battery Tender Plus and still on the original BMW battery, seems to work fine.

Regards & Ride Safe!

Bruce
'09 Black LT
4-Wheels moves the body, 2-wheels moves the soul.
IBA # 8547
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post #9 of 10 Old Nov 8th, 2011, 5:52 pm
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Re: Battery Tender

I use the BMW charger I got with my last bike. It works great. I just plug it into the socket by my left foot. I also use it on my Vulcan 2000. I just plug it directly into the lead going to the battery.

2006 R1200RT
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post #10 of 10 Old Nov 8th, 2011, 9:31 pm
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Re: Battery Tender

Deltran sells a tender--specifically for gel batteries, that can also be used on other types of batteries.. Supposedly the gel needs a gentler curve for charging. About 43-45 $ at Amazon, including shipping.
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