New battery, help me decode yuasa please...

NorCalBusa

Member #294
Self activated is the better deal. A battery's life starts ticking as soon as its activated, sitting on the shelf at a distributor, then the dealer are on your dime. Might be 2, 4, >6 months later. If you buy it dry, the clock starts when YOU activate it. All depends if the min wage kid is rotating stock as they should- all the way down the supply chain.
 

ST Guy

Well-known member
Self activated is the better deal. A battery's life starts ticking as soon as its activated, sitting on the shelf at a distributor, then the dealer are on your dime. Might be 2, 4, >6 months later. If you buy it dry, the clock starts when YOU activate it. All depends if the min wage kid is rotating stock as they should- all the way down the supply chain.

This!

Follow instructions when you add acid. Wait at least an hour more than specified after adding acid before hooking up to charger. (1-1.6 amps maximum.) Charge overnight. Remove battery from charger and let it sit 3 to 4 hours. Measure voltage. If 12.8 or so, install battery and ride.
 

auntiebling

megalomaniacal troglodyte
Staff member
This!

Follow instructions when you add acid. Wait at least an hour more than specified after adding acid before hooking up to charger. (1-1.6 amps maximum.) Charge overnight. Remove battery from charger and let it sit 3 to 4 hours. Measure voltage. If 12.8 or so, install battery and ride.

battery is on order, due to arrive tomorrow.

i was waiting till it arrives to search your instructions thanks for re-re-re-re-re-reposting them for me! :laughing
 

auntiebling

megalomaniacal troglodyte
Staff member
Turns out the recommended wait time was 30 minutes, but the I structured were a sequence of pictures and as I haven been reading Picture Books in quit some years I didnt understand at first inspecrion


I have good luck with cheap AGM batteries.

https://www.amazon.com/Weize-YTX14A...echargeable/dp/B07VWVTL1V/ref=sr_1_5?dchild=1

This may not be the exact one you need - but you could probably find it.

I did end up with a non-yuasa because a real one wouldnt arrive in time

Ac delco? Sure

https://www.amazon.com/dp/B00BFLW308/ref=cm_sw_r_cp_apa_i_WrdKFb41RXHKQ?_encoding=UTF8&psc=1

And I am also now fairly sure its the wrong batter as the positive and negative posts are in the wrong places. Sheeeeeit

Nope, amazon pic is wrong. Phew
 
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ST Guy

Well-known member
Never hurts to wait a little longer. It takes time for the mat to absorb all the acid. I believe Yuasa says wait an hour. I give it two, then put it on the charger.

And don't forget to wait at least an hour, two would be better, after removing the charger from the battery before making a voltage reading. It takes a while for the surface charge to dissappate. Same thing after it's installed. Wait a couple hours after shutting the engine off to get an accurate measurement.
 

W800

Noob
Turns out the recommended wait time was 30 minutes, but the I structured were a sequence of pictures and as I haven been reading Picture Books in quit some years I didnt understand at first inspecrion




I did end up with a non-yuasa because a real one wouldnt arrive in time

Ac delco? Sure

https://www.amazon.com/dp/B00BFLW308/ref=cm_sw_r_cp_apa_i_WrdKFb41RXHKQ?_encoding=UTF8&psc=1

And I am also now fairly sure its the wrong batter as the positive and negative posts are in the wrong places. Sheeeeeit

Nope, amazon pic is wrong. Phew

LOL - I so totally don't trust Amazon pics anymore. I ordered some files. They looked 12 inches long in the pic. They are 140mm long. Make great nail files!!!
 

Tom G

"The Deer Hunter"
Never hurts to wait a little longer. It takes time for the mat to absorb all the acid. I believe Yuasa says wait an hour. I give it two, then put it on the charger.

And don't forget to wait at least an hour, two would be better, after removing the charger from the battery before making a voltage reading. It takes a while for the surface charge to dissappate. Same thing after it's installed. Wait a couple hours after shutting the engine off to get an accurate measurement.

Why do you read the voltage on a new battery? To make sure you didn't receive a lemon? Or to check your charging system?

For my last car battery I went to my shop, the guy did a load test, said < 5% capacity. It started fine on the 1st crank, but would have likely died on the 2nd.
 

W800

Noob
Why do you read the voltage on a new battery? To make sure you didn't receive a lemon? Or to check your charging system?

For my last car battery I went to my shop, the guy did a load test, said < 5% capacity. It started fine on the 1st crank, but would have likely died on the 2nd.

I always check voltage with vehicle off, then vehicle on. Should be higher with vehicle on, at least right after a start. It's to check charging system to make sure battery was actual problem.

With new battery capacity should not be issue.
 
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ST Guy

Well-known member
Why do you read the voltage on a new battery? To make sure you didn't receive a lemon? Or to check your charging system?

For my last car battery I went to my shop, the guy did a load test, said < 5% capacity. It started fine on the 1st crank, but would have likely died on the 2nd.

To check and see if you got a lemon of a battery. A new battery should generate 12.8 volts.

Since the first charge will be from a plug in charger, your not really testing much. But after you install the battery, and after a few rides, yes your checking the charging system. Usually you do the check with the engine not having been run for about two hours. You should get 12.8 volts, more or less. Then you fire up the bike and do a check at 3-4000 rpm. You should get 14.4 volts, more or less.
 

ScottRNelson

Mr. Dual Sport Rider
I have good luck with cheap AGM batteries.
I have had bad luck with cheap AGM batteries.

My 2008 KTM 990 Adventure was tough on batteries. When the original died I was in the middle of a ride, stopped for a few minutes, and it determined there wasn't enough voltage to start, so nothing. I was lucky to be able to bump start the thing.

I bought a cheap AGM battery as a replacement and it was failing to start the bike within six months. It had a warranty, so I was given another one and it also failed within six months. I probably could have gotten a third one but decided to go with Yuasa instead and that was the end of battery issues on that bike.

I will only put Yuasa batteries in my bikes when it is time to replace them because I don't want to go through that again - ever.
 

W800

Noob
I have had bad luck with cheap AGM batteries.

My 2008 KTM 990 Adventure was tough on batteries. When the original died I was in the middle of a ride, stopped for a few minutes, and it determined there wasn't enough voltage to start, so nothing. I was lucky to be able to bump start the thing.

I bought a cheap AGM battery as a replacement and it was failing to start the bike within six months. It had a warranty, so I was given another one and it also failed within six months. I probably could have gotten a third one but decided to go with Yuasa instead and that was the end of battery issues on that bike.

I will only put Yuasa batteries in my bikes when it is time to replace them because I don't want to go through that again - ever.

Good to know. Yes, I think QC on cheaper batteries is all over the place. Mine was on a kick start bike, so that might have also been part of it.
 
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