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john.b.watts
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VBMWMO #8877
Joined: 03/09/2015
Posts: 38

Hi Group - I am looking for the battery make (Yuasa?) model ("YTX7L"?) and dimensions (~ 3.5 x 4.4 x 6.5?) for the perfect 12v battery fitment in my 1959 R69. If there is a standard agreed upon unit, can you tell me what that is? Bonus question! Is there a battery box that fits your choice that fakes the look of the original 6v from yesteryear?

Many thanks in advance!

miller6997
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VBMWMO #6997
Joined: 10/27/2006
Posts: 934
I'm using the 12V battery

I'm using the 12V battery that Vech supplied with the conversion kit. I'll get the specs later today and post them here.

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Jon Miller
'67 R69S
'13 F800GT

john.b.watts
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Joined: 03/09/2015
Posts: 38
Thank you Jon I would

Thank you Jon I would appreciate the make and model number very much!

miller6997
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VBMWMO #6997
Joined: 10/27/2006
Posts: 934
Here it is...

The battery supplied with my 12V conversion is from Parts Unlimited in Janesville, Ohio. The type/model number is YTX14-BS. It is 6"W X6"H X4"D. Other than "Parts Unlimited," it does not have a brand name on it.

As I recall, the price from Benchmark was about $75, and I had to add the acid, which was packed in a sealed container. It's maintenance free, in that the caps are not to be removed after it is filled.

Note: If you Google that model number, YTX14-BS, you will see that it is widely available under different brand names, including Yuasa, for as low as thirty bucks. Amazon has several versions, some of which are already sealed and fully charged (even with free shipping).

Note also: The battery I have is a pretty tight fit on the R69S. It takes some fiddling to get it into place. With the seat and air cleaner off, this is not really a problem, but I noticed that there is some size variation among different brands, and one that is slightly smaller (with the same specs otherwise) might be a bit handier to install and remove. The standard BMW rubber battery strap will hold it in place.

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Jon Miller
'67 R69S
'13 F800GT

dougbrashear
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VBMWMO #8334
Joined: 07/27/2012
Posts: 27
I also use the YTX-14 and

I also use the YTX-14 and it's definitely a tight fit, but it does work. It is so tight, though, that I feel like I remember Vech saying in the past that there's a possibility that it might not fit, depending on your actual frame. Maybe I'm remembering that wrong, though.

- Doug

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1967 BMW R60/2
1952/1954 BMW R67/2
1965 Puch SGS 250

miller6997
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VBMWMO #6997
Joined: 10/27/2006
Posts: 934
Yes. it's tight...

The first time I installed it, I thought it would never fit. After taking it out and replacing it several times since, it gets easier. It you tilt it toward the front of the bike and install it "bottom first," it goes in fairly easily.

Interesting footnote: I discovered that the same battery is appropriate for my F800GT.

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Jon Miller
'67 R69S
'13 F800GT

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