Yuasa YUAM6212B YT12B-BS Battery

Replaced the Battery on my Triumph Bonneville 2009 EFI. This is the exact same as came stock. And it cranks nicely! I didn't even realize that my previous battery wasn't cranking so great until I replaced it.

From what I hear when they switched to EFI from carbs the battery got smaller to make room for the ECU. So every Bonnie, Scrambler, and Thruxton from 2009,2010 and possibly 2011 have this (smaller) battery YT12B-BS.

I hear that they increased the size on the 2012 and some of the 2011... to the standard 12-BS instead of the 12B-BS.

Almost every website (i'm looking at you amazon!)has this info wrong and assumes that '09,'10 have the same battery as previous years and the current year. Including the Yuasa US website!!!

Initially thought that I would not know what to do with adding the acid, but it was really easy. The battery came dry and all you have to do is follow instructions to add the acid. It was very safe to perform and after sealing it I waited a few minutes and installed the battery right away. I have a 2004 Yamaha FZ 6 and it started on my first try. Excellent product and I'm pleased with the purchase.

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Second time use this batt. First one last me 7 years cnt complain & the price fair enough for the quality. Also Shipping fast

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this name brand battery is famous but this one is made in taiwan so i will need to use at least a yr to know the different.

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I ordered this battery because it is what fits my bike and Amazon had the best price. I got what I ordered quickly and with out any problems.

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