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Discussion Starter #1
My four-year-old Yuasa YTX12-BS died. I think that the deep discharge to zero V when my stator died did not help its lifespan. The V would not start, I removed the battery, charged it up and in less than one-half hour voltage had dropped to 12.4 V

Got replacement from FortNine shipped free in less than 48 hours.

Following instructions (imagine that, reading the manual!) I added the acid, sealed the battery (AGM type) and waited an hour to let acid absorb into the glass.

Before hooking up charger (2 amp auto shut-off type) I checked the voltage- it was 12.7 volts without a charge! I hooked up the charger and it is accepting a charge? Wierd.

I know you electrical boffins (Glen) can explain it, but to me it's voodoo. Mechanics I get, but electronics? you might as well tell me to wave a chicken bone at it and make a blood sacrifice to the electron gods. I'm going to do that regardless to ensure a long trouble-free battery life. :wink2:
 

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Couple three points:

a) I would use one of the newer microprocessor type charger .vs. an older automotive battery charger, the older ones seem to give MY AGM motorcycle batteries heart burn. I think it's because of battery overcharging (or too-fast a charge) which shortens battery life, although yours at 4 years I'd say it doesn't really owe you much... (and now I cower under my desk under an incoming barrage of "You ignorant bastard, that's NOT true in any sense, because I ALWAYS use the correct synthetic motor oil and my batter NEVER goes dead!!!")

b) the battery has a 'natural' chemical affinity that will begin producing volts when the acid gets added. No real magic there; basic chemistry and electrical behaviors.

c) do NOT let the battery die dead dead dead. You'll be replacing your current replacement.

Cheers.
 

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Discussion Starter #3
....no real magic there; basic chemistry and electrical behaviors.

c) do NOT let the battery die dead dead dead.
Please allow for some magic. Or voodoo :wink2:

As I said, that's exactly what happened when the stator died while riding. A strange experience to be riding down the road on your reliable Versys when it suddenly quits. Dead.

I have a Heads Up monitor now that will warn me if the battery is not being charged. If I happen to notice it.
 

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Please allow for some magic. Or voodoo :wink2:

As I said, that's exactly what happened when the stator died while riding. A strange experience to be riding down the road on your reliable Versys when it suddenly quits. Dead.

I have a Heads Up monitor now that will warn me if the battery is not being charged. If I happen to notice it.
OK, there IS some magic in there. I'm told that it's same goodness that makes crunchy peanut butter so good.

I too would sorta freak if the Versys suddenly fell over dead, and I'd prolly start looking for evil spirits. Or my ex-wife. Or both since they're sorta the same thing....
 

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its the magic of chemistry..... " Each cell of a lead storage battery consists of alternate plates of lead (cathode) and lead coated with lead dioxide (anode) immersed in an electrolyte of sulfuric acid solution."

so when you add the acid thats fresh and strong it creates a strong reaction and creates a strong amount of power builds up rapidly. you still want to put it on a charger to "top it up"
 
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AGM batteries are "dry charged" at the factory. Then, when the acid is added, they chemically charge a bit. That is why they don't require much charging once activated.

There is all kinds of mystical and magical things going on with electronicals. The important thing to remember is to not get the pixies angry. Angry pixies can wreck havoc. They may be tiny, but their ability to let the magic smoke out of things on a whim can get expensive quickly...
 

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Discussion Starter #7
Versys regulator: the new Prince of Darkness. >:)

The new battery registers 12.88 volts this morning 14 hours after being charged. The battery I replaced reads 12.12 volts with no charge for three days.

Look for a PM, Dave.
 

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Versys regulator: the new Prince of Darkness. >:)

The new battery registers 12.88 volts this morning 14 hours after being charged. The battery I replaced reads 12.12 volts with no charge for three days.

Look for a PM, Dave.
Better Dave than me>:)
 

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Please allow for some magic. Or voodoo :wink2:

As I said, that's exactly what happened when the stator died while riding. A strange experience to be riding down the road on your reliable Versys when it suddenly quits. Dead.

I have a Heads Up monitor now that will warn me if the battery is not being charged. If I happen to notice it.
When my '08's stator "died", I was warned by the digital volt-meter I had installed, so I did a 180 then headed for home w' everything that I COULD turn OFF - turned OFF, till the volts started going below about 11v, at which time I pulled over and phoned for a tow.

 

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