Yuasa YUAM6212B YT12B-BS Battery

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Yuasa YUAM6212B YT12B-BS Battery
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Product Description

Absorbed Glass Mat (AGM) Technology is an advanced battery design used in Yuasa's Maintenance Free Batteries that eliminates water loss. Once it's filled with acid the battery is permanently sealed - so you'll never need to fill it with water or check the acid level. Battery comes with acid packs. Longer Life Because of its lead calcium design, the AGM battery will hold its specific gravity more than three times longer than conventional lead antimony types. This means much longer periods between charges when the battery is used in a standby mode, like winter storage. And to remain factory-fresh the AGM battery is shipped dry along with its own pack of high-gravity acid that's added at the time of installation. Sealed, Non-spill-able: Once filled with acid from its special packs, the AGM battery is virtually maintenance free. It's totally sealed and all of the acid is absorbed in the special plates and separators, so there is no need to worry about acid leaks on valuable v ehicle parts and accessories.

Product Details

  • Amazon Sales Rank: #1476 in Automotive
  • Brand: Yuasa
  • Model: YUAM6212B
  • Released on: 2012-05-30
  • Dimensions: 5.40" h x 6.90" w x 7.80" l, 9.60 pounds


  • 12 Volt, 10 amp-hour, 215 cold cranking amps, maintenance-free battery
  • Totally sealed and spill-proof - all acid is absorbed in special plates and absorbed glass mat separators
  • No need to ever add water
  • Advanced lead-calcium technology hold its specific gravity more than 3 times longer than conventional batteries
  • Battery supplied dry with acid bottle

Customer Reviews

Most helpful customer reviews

4 of 4 people found the following review helpful.
5Good replacement
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!!!

1 of 1 people found the following review helpful.
5Works Great ! ! !
By Jun Cesar S. Atienza
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.

0 of 0 people found the following review helpful.
5Great battery and easy to install
By Jess
The price, shipping, and arrival of this battery were all great. And when I got it, the process of putting the acid into the battery is really easy: the instructions are clear, and the safety seals make it easy to avoid getting any acid on you or anything else.

For the savings, this purchase is well worth the small amount of battery prep.