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Thread: AGM or Lead acid battery.......Yuasa.

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    Senior Member frog13's Avatar
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    AGM or Lead acid battery.......Yuasa.

    Any riders ever use Yuasa's YTZ7S AGM battery instead of the traditional YB7C-A?. I'm fully aware the AGM has smaller dimensions. I'm inquiring of performance differences if any and longevity if any? TIA
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    Ken
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    Senior Member Ken's Avatar
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    I got the Scorpian YTZ7S, $44.95 from Batterystuff.com at this time. I have been happy with it so far, a few months. It seems way better than all of the lead acid batteries I have had. I thought something was wrong with the starting system and was getting ready to trace all starting ground leads. It would turn over slow with a new lead acid battery. It works great with the AGM battery.

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    Senior Member mrlmd's Avatar
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    Yuasa makes great batteries.
    An AGM is highly recommended for motorcycles over a standard lead acid battery because it won't spill acid if the bike goes down, which can be detrimental to you as well as to the bike. And they last longer and are more tolerant to recovering from discharges.
    And I've posted this innumerable times before -- an AGM battery MUST be fully charged before putting into service, DO NOT rely on the guy in the battery store selling it to you telling you it's good to go, to just put it in and use it. YOU must put it on a charger and get it up to full charge before first use or it will suffer an early death, like after trying to start your bike 2 or 3 times it may already be shot. That advice comes directly from Yuasa and every other AGM battery manufacturer if you bother to read the directions for use inside the box.
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    Senior Member Mattwings's Avatar
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    Senior Member jtstdub's Avatar
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    I prefer AGM's for Cycles.. Not only they do not leak when on their side they also do not spew electrolyte when charging.... especially when the battery is not fully charged... Even with the drain tube hooked up the drips spray back onto parts of the cycle that will immediately start to corrode!

    Jim
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    Senior Member admiral's Avatar
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    Quote Originally Posted by Mat twinges View Post
    So, when I clicked on the "read" more buttons, it appears this is an AGM Battery if I'm reading that correctly. Is this the same type of battery everybody gets when they say they're getting an AGM Battery because it's how I read it?

    This YTZ7S is a sealed lead-acid (SLA) absorbed glass mat (AGM) rechargeable battery. AGM and GEL batteries are lead-acid and of the same battery chemistry. This battery comes already charged, sealed, maintenance free, and ready to install.


    Premium quality absorbed glass mat technology (AGM) is ideal for ATVs, Motorcycles, Personal Watercraft, Jet Ski's, Snowmobiles and more.


    Specifications of the YTZ7S Battery


    Voltage: 12 Volt


    Amperage: 6 AH


    Chemistry: SLA, AGM


    Terminal: Nut & Bolt


    Battery Dimensions:


    4.50 in x 2.81 in x 4.21 in


    Weight: 4.41 Lbs


    Warranty


    1 Year







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    Senior Member Mattwings's Avatar
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    Well, the specs seem good and I need a new battery, wether I decide to sell the TW in the spring or not, so I ordered one. I will report back on my observations/opinion. Great price at $30 shipped to my door and no tax too!
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    Senior Member stagewex's Avatar
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    It is significantly smaller in size than the stock battery. You'll have to make a couple fillers. Cranks over fine. Performance is not lacking because of its small size. An excellent choice in AGM.
    Made no sense to me that there was a "wet" battery in a dual-sport bike. BTW... that is a really incredible price at $30.00 for this battery. I think I paid a bunch more.

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    Senior Member jbfla's Avatar
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    For the record, an AGM (absorbed glass mat) battery is a lead-acid battery.

    However, the acid is fully absorbed in the fiberglass mat.

    jb
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    Senior Member SportsterDoc's Avatar
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    I prefer AGM for truck, Jeep, travel trailers at ranch on solar panels and most definitely for M/C operation.
    My 03 Miata came stock with one, if I remember correctly.
    The self discharge rate for AGM is much less than conventional lead-acid.
    They are close to deep-cycle batteries for discharge recovery.
    ...and they do not pee sulfuric acid when inverted.


    http://www.yuasabatteries.com/pdfs/TechManual_2014.pdf
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