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Replacement Battery Info for R1200RT WetHead/R1250RT ShiftHead


Boxflyer

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Boxflyer

There are lots of forum threads that contain individual users' experience with what battery they use to replace the OEM battery on the 2014-2018 R1200RT WetHead series of BMW.
This info is also probably applicable to the 2019-on R1250RTW as well, since the only real change with the ShiftHead was the engine. It's just not updated on the YUASA site but shows the same battery is used for all WetHead and ShiftHead RTW from 2014-2020 on RealOEM.com Part #61218531121. RealOEM Parts  MAX BMW Parts Fiche  $176

Since YUASA appears to make some of the BMW labeled OEM batteries, going to their website provides a couple of answers to help out when trying to find a suitable replacement battery.

There are few option choices if you stay within the original spec of lead-acid battery. I'm not going to get into replacement Li-Ion or other alternative chemical composition batteries since that's going outside the OEM Spec for batteries.

To gain some background on the development of batteries since 1859, this site has plenty of info on the SLA (sealed lead-acid) batteries we use.
Battery History

For the WetHead series of bike, we are limited in the type/size of battery that will fit into the location provided, specifically 6 x 3 7/16 x 6 3/8 inches, or 150x87x161mm (LxWxH).
Post/terminal position and polarity are also considerations. Knowing these 2 factors allows you to narrow your search very easily. (Using a slightly smaller battery in any dimension is not used in my search for a "proper" replacement)

Using this link to the YUASA Application Guide helps establish that there are just 2 batteries that are listed as, AGM or High Performance AGM.
Yuasa Battery Guide

The 2 batteries that are listed for the 2014-2018 BMW R1200RT are YTX16-BS AGM and YTX20CH-BS High Performance AGM.
If you follow the link above to the YUASA site and then search with the FIND Command, Command+F (Mac) or Ctrl+F (Windows) and fill in the SEARCH field with YTX20CH-BS it will step thru all occurrences of this battery on the entire website.


It's apparent that the difference between a "16" and a "20" series is capacity/power generated within the same size case.

To summarize what's there if the link to the YUASA site changes, these 2 batteries listed have the correct external dimension/size to fit our bike, but these differences in performance.

 

Yuasa%20battery%20-M.jpg

I have listed this as the replacement battery I'm using since the fall of 2019 when my OEM battery failed on my 2016R1200RTW at 52k…now 70k+.
Rechargeable YTX20CH-BS Chrome Pro High Performance Power Sports Battery
Amazon Link to YTX20CH-BS
Still working, as well as or better than, the OEM and at less than $55 delivered has been a good value for me.

Hope this helps WHEN…NOT IF…you need to replace your battery.

 

E6343165-F700-452E-BDD4-5F3793479902-M.j

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Boxflyer

The link to the YTX20CH-BS is fixed in the original post.  Thanks for pointing that out.

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alegerlotz

I run the YTX20CH-BS in my 2016 R1200RT.  Same size as the stock battery and has plenty of juice.

 

 

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Aussie Mark

Great Battery info, thanks Boxflyer! :18:

Just frustrating when I look up the price in our little country and it does not include delivery.. 

 

YTX20CH-BS Aus.jpg

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  • 1 month later...
cookie

BoxFlyer, thanks for all your research and for posting this thread! Since my new-to-me 2015 R1200RTW is six years old with the original battery, I ordered the Yuasa YTX20CH-BS, which arrived yesterday. What I found to be very odd is that although this is an AGM battery, it was shipped dry with a bag of acid. I haven't had to fill a battery since the bad old days of flooded batteries. Never before heard of an AGM battery that wasn't filled and sealed at the factory, though most of my AGM battery experience is with Odyssey (and I like those a LOT, though of course they don't have an application for this bike).

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Boxflyer

Hi Cookie,

I got this from the Yuasa site regarding a more detailed description of their AGM batteries.

Image%205-19-21%20at%2008.26-M.jpg

 

The battery I purchased and used in my 2016RTW is not a branded Yuasa battery, and was shipped wet, and sealed.

Here's the link to the battery I use.  Amazon Link to YTX20CH-BS

Sorry you had to add the acid yourself, but it should be just as powerful and serviceable once installed.

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strataj

Cookie,

 

I have the same battery in my 14RT and a different size in my Wee Strom, both required the acid to be added.  I think this is better since the batty hasn't been "sitting around".  By adding the acid yourself you are assured a fresh battery. 

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+1 on adding acid yourself is a good thing.

 

I had a Vstrom that would eat batteries every 3 years or so.  And it would seem to be fine right up to the day when it would not start.  So, I started keeping a spare battery on the shelf with the acid separate.  And then when the day came that the bike would not start, I could put a fresh battery in, and then order the next spare.  The acid came in a neat little 6-pack that facilitated filling all of the cells simultaneously.  Quick, easy, safe.  It's a feature, not a bug.

 

Cap

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8 hours ago, cookie said:

BoxFlyer, thanks for all your research and for posting this thread! Since my new-to-me 2015 R1200RTW is six years old with the original battery, I ordered the Yuasa YTX20CH-BS, which arrived yesterday. What I found to be very odd is that although this is an AGM battery, it was shipped dry with a bag of acid. I haven't had to fill a battery since the bad old days of flooded batteries. Never before heard of an AGM battery that wasn't filled and sealed at the factory, though most of my AGM battery experience is with Odyssey (and I like those a LOT, though of course they don't have an application for this bike).

Where did you order it from as I want one.  That is the best way to have a battery in stock, dry.

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14 hours ago, cookie said:

Amazon. Yuasa Battery

Thank you. 

 

Flea Bay has it for 89.15 if anyone is looking for this brand. 

 

Cap pm'd me, and I had already looked there and that price is a good price.

 

Now I ride a GS so I need a different size but it is also 89.15 and dry which for stock is what you want. 

 

I am more of a time guy on batteries then miles.  While miles may indicate it is a good battery a guy who does high miles is working and maintaining a battery much better then a 6-8K a year rider.  So a time is good but of course that depends on how it is cared for.

 

I have tried many brands and have stayed with Yuasa for many years on Harley's, Yamaha's and 2 BMW's and they give me good service. 

 

Back in the day we got 5 or 6 years as a minimum  no issues and no special care.  Now it seems we just pitch them at 3 or 4 and buy new.  It seems odd to me that they have dropped in performance or are all the new electronics just wearing them out?

 

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cookie

Amazon pricing is funny. When I bought the battery on 5/11, the price was $94.37 including 6% tax. When I looked again (so I could link it here), it was something like $138 plus tax. And the first place I looked for the battery WAS eBay, and it was $2 cheaper than Amazon, so I ordered it (was supposed to be coming from Chaparral). But eBay immediately refunded my money, saying the battery was not available.

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strataj

In my opinion you always need to shop around, Amazon is all about asking as much as it can get (I've seen prices on items change a couple or more times during the same day ) not a percentage of cost like most retail.  I got the same battery from Amazon in March of 2018 for $83.74.  It's going strong!

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