YuasaYUAM629B4 YT9B-BS Battery, Multi-Colored

Yuasa is a top quality motorcycle battery. I purchased this YT9B-BS for my Yamaha R6. The battery came very well wrapped and with the electrolyte fluid in a nice separate container. I simply poured the electrolyte fluid in the battery, charged it, and then installed it.My motorcycle battery lies on its side when installed. The battery fluid cover fits VERY tight and I have had no problem with the battery leaking.I am very happy with this battery and don't see any reason I would ever go to a different brand.

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Few things, this is NOT a gel battery. It is a sealed liquid battery. Despite what your run-of-the-mill local auto parts store may tell you, this is the correct battery for previous gen R6 bikes. I've purchased this battery twice, once back in 2013 when I first bought my 2005 Yamaha R6 and again just a few weeks ago before selling the bike.Both batteries came in perfect condition. The instructions for battery activation are simple enough. Battery activation/assembly takes roughly 30 minutes + charging time. The first battery held up pretty well - my R6 had a slow electrical drain which caused the battery to eventually go flat (but not before a handful of recharges).Despite being a sealed battery, there are instructions online for reactivating by reopening the chamber and adding fluid. I have not performed this reactivation but it seems promising. Perform at your own risk.

These are great batteries I've owned many. The only reason my 9 year old factory one died was because at some point some unintelligent person (I can't use the simplified word apparently) plugged in my 1 year old battery tender meant to take care of my 8 year old battery... Backwards... So yeah it died. Either that or it was the girlfriend trying to get to the cabinet behind the quad that did it. At least that's what I tell everyone. ;-)

I had to replace my stock battery after several years of stellar performance. I looked around a bit online and found various conflicting reports about what type of battery is best. In the end I decided to stick with the same brand as OEM since my original battery lasted so long. This battery arrived quickly thanks and was very easy to fill. The battery itself has barbs which then puncture the seal on the acid container, ensuring that you don't spill any while trying to fill and also eliminating the need for any type of funnel. Since the acid is then absorbed there is no risk of the battery leaking (though you still need to seal the battery to ensure that no foreign materials contaminate it), which is good because my battery mounts on its side. My bike cranks up very quickly, barely requiring me to tap the starter. All in all, I am very happy with this purchase.

This resuscitated my 2008 Yamaha Majesty 400. I think it's the battery that shipped with the bike OEM. Works and fits great.

I bought two of these batteries for my Yamaha Raptor 700's and they were easy to fill (takes about 15min) and charged them overnight. Both batteries started the machines up with ease. I would totally buy these again.

Bought around January put in in March die in June they warranty it second battery died in august. They wouldn’t warranty again or refund. Bike was looked at no charging issues bought different one no problem since

I am very happy with the purchase it was exactly as ordered. It did take a week longer but these things happen. I followed the instructions and had it working the very same day! Also I save $100 over the local bike shop quote! 😊

Works great

Fit perfectly in my 2003 R6.