Battery recommendations

fuldog

Well-known member
After 10 yrs. the Yuasa YTZ10S in my 2001 F4i finally gave up. Considering the exceptionally long life I got out of this battery I'd like to replace it with the exact same product. In shopping for a new one I found several equivalent size models with prices ranging from $60 to $120 all with 1 year warrantys. The specs on the most expensive ones say they are made by companies sub contracted by Yausa but I'm wondering if I could get 10 years out of them. Any recommendations ?
 

Spec-ECU

required protocol
I'd recommend you stick with the Yuasa.

I've ventured off to other brands myself, even battery types (the newer lightweight types) and the hit-and-miss factor just is not worth the deviation.
 

mototireguy

Moto Tire Veteran
Stick with the Yuasa YTZ10S.

And after install confirm your bike running at low-mid rpm battery voltage is 14.4v or you run the risk of your new battery quickly becoming another dead battery.
 

Hank Wong

Well-known member
10 years! You take good care of your battery.
If you want a new one that will last you the next 10 years, stick with a lead acid yuasa. I have one in my cruiser since 2009. It sure feels as strong if not stronger than my two-year old AGM battery in my BMW. On the other hand, AGM batteries won't spill and have a higher standing voltage that my BMW ABS needs.
 

Tri750

Mr. Knew it All
A YTZ10S is a lead acid battery of the AGM type. (Advanced Glass Mat) where the acid is absorbed by fiberglass mat inside the cells and sandwiched between the plates. Unspillable and maintenance free.
It's not a flooded lead acid where you can add water when low. The AGM has more power and keeps a charge longer than flooded lead acid.

Yes, if you got that long out of the Yuasa, buy exactly the same, not the almost as good as. Cycle Gear has good prices as does Amazon. If you mess with ebay, beware. Many sellers picture the Yuasa and send you the Fuasa.

Be sure you fully charge the new one when you buy it and whatever your doing to maintain your battery, keep doing the same thing.

There is a possibility that the OEM Yuasa has/had more plates than the replacement.
 

ScottRNelson

Mr. Dual Sport Rider
I tried a couple of WPS batteries in my KTM and had issues with both of them. The first one wouldn't keep charged enough to start the bike when cold, so I had it replaced under warranty. After a few months I noticed similar symptoms and I had been very careful with that battery.

I finally gave up and bought the proper Yuasa battery for my bike and there have been no issues since. I will not try to save a few bucks on batteries again.
 
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