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Discussion Starter · #1 ·
I bought a 2019 Tw200 and the battery was dead. I bought a new AGP battery from my local motorcycle dealer. I took a cheap model (Chinese copy of a YUASA YTZ7SS) but after charging it completely it only had 12.5v. I tried with 2 different chargers and same result. I took it back to the store and they tested it and it was 75% charged and it was 60% healthy.

They advised me to take a real YUASA YTZ7SS at $220, which I did to have no more problems. when fully charged it only had 12.6 volts (tested with 3 different multimeters) and I tried charging with 2 different smart chargers. I even bought a Battery Tender Jr to be sure and still the same, the charger stops and says the battery is full but it's only 12.6V. I therefore went to the store again and he put the battery to charge on his charger overnight. The next day when I went back there he tested and it was the same, just 12.6V and his tester was giving like 80% charge but the battery health was at 105%. He said it must be faulty so he exchanged me for a similar one.

Arrived at home I charged this third battery immediately and after a full charge I tested it at 12.9V, finally ! But a few hours later I retested and it was back to 12.7V. Is it normal or not? I really don't know what to think anymore. What do you think ?


 

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2021 TW200
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I bought a 2019 Tw200 and the battery was dead. I bought a new AGP battery from my local motorcycle dealer. I took a cheap model (Chinese copy of a YUASA YTZ7SS) but after charging it completely it only had 12.5v. I tried with 2 different chargers and same result. I took it back to the store and they tested it and it was 75% charged and it was 60% healthy.

They advised me to take a real YUASA YTZ7SS at $220, which I did to have no more problems. when fully charged it only had 12.6 volts (tested with 3 different multimeters) and I tried charging with 2 different smart chargers. I even bought a Battery Tender Jr to be sure and still the same, the charger stops and says the battery is full but it's only 12.6V. I therefore went to the store again and he put the battery to charge on his charger overnight. The next day when I went back there he tested and it was the same, just 12.6V and his tester was giving like 80% charge but the battery health was at 105%. He said it must be faulty so he exchanged me for a similar one.

Arrived at home I charged this third battery immediately and after a full charge I tested it at 12.9V, finally ! But a few hours later I retested and it was back to 12.7V. Is it normal or not? I really don't know what to think anymore. What do you think ?


12.7 is the nominal voltage after resting so yes it good . some do charge as high 13.5 get a couple of cycles on it it will raise some
 

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What charger did you use to charge the batteries? What is the rated output in amps of the charger(s)?

My observations over the years have lead me to conclude that these small batteries do not like being charged with much amperage. A good rule of thumb is to charge at a rate of 10% of the Amp Hour (Ah) rating of any given battery. The batteries available for the TW are usually between 6-8Ah, so I usually recommend the 750ma Battery Tender Jr. Many charger/tenders are putting out 4 amps or more, and that is too much for these little things. They're good for lawn tractor sized batteries, while a car battery can be charged with a 10 amp. I also don't recommend leaving them connected. Charge it as needed, then disconnect it.

12.7 seems fine as long as it doesn't continue to drop rapidly with no load.

I encourage you to keep reading the forum and even asking questions before you spend during your new bike journey. No offense, but few here would recommend the $200+ purchase of the brand name Yuasa. For that money, lithium would be the encouraged route, and there are plenty doing just fine with an Amazon YTZ7S knock-off for much, much less. As always, best to you.
 

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Just because the battery read 12.6 volts doesn't mean it wasn't still charging. You need to measure the current draw from the charger into the battery. It could be it's trickle charging around 1/10th of an amp. At that rate, ti will take several days to top off. That is the nature of batteries: they will bulk charge the first 80% or so, the top off with a trickle charge taking days to finish. Then after a few cycles of drain/charge, the battery will settle down and stay charged.
12.7 volts is fine after a charge and the battery removed for a day or so. Wth the charger and reading 12.9, that is the float voltage,
 

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2021 TW
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A lead acid battery cell will be around 2.1 V fully charged, on a good day.That battery has six cells.
So multiply by the earths rotation,divide by your height and weight and you should get 12.6 V.
These little batteries like to be charged low and slow. Rule of thumb is 1/10th of battery amps.
Im a thinking the TW battery is probably between 8 to 10 amps? Then a 1 amp charger would be plenty good.
 

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2004 TW200, 3000 miles
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Discussion Starter · #9 ·
That's a lifetime supply of AGM or LiFe batteries for a TW!
I am in Canada, so this is CAD$ Prices with taxes... Probably twice the US$ price !
But I didn't really have a choice, I had lost my invoice for the first problematic battery, so I couldn't get it refunded, that's why I went for an exchange for one that should give me peace of mind... And there was a discount for after Christmas, I paid a bit cheaper...
 

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Discussion Starter · #10 ·
Just because the battery read 12.6 volts doesn't mean it wasn't still charging. You need to measure the current draw from the charger into the battery. It could be it's trickle charging around 1/10th of an amp. At that rate, ti will take several days to top off. That is the nature of batteries: they will bulk charge the first 80% or so, the top off with a trickle charge taking days to finish. Then after a few cycles of drain/charge, the battery will settle down and stay charged.
12.7 volts is fine after a charge and the battery removed for a day or so. Wth the charger and reading 12.9, that is the float voltage,
Good ! Thanks for your help !
 

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Discussion Starter · #11 ·
What charger did you use to charge the batteries? What is the rated output in amps of the charger(s)?
I tried with Battery Tender Jr. and with a intelligent charger with AGM setting...

12.7 seems fine as long as it doesn't continue to drop rapidly with no load.
Perfect ! I will check with load !

I encourage you to keep reading the forum and even asking questions before you spend during your new bike journey. No offense, but few here would recommend the $200+ purchase of the brand name Yuasa. For that money, lithium would be the encouraged route, and there are plenty doing just fine with an Amazon YTZ7S knock-off for much, much less. As always, best to you.
Problematic situation. I lost the invoice or the first problematic battery. I didn't have the choice to choose an exchange but since the first battery I had had a very low health, I didn't want to take a chance with another cheap one. The store didn't have a compatible LIthium battery, so the only choice I had was the YTZ7S. There was also a post Christmas discount, but i agree it is expensive (but it's Canadian dollars with taxes, probably twice the cost than $US...) I hope this is the last one I buy for a few years!
 

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love Yuasa batteries but prices have gone crazy the past few years now I'd buy a Shorai or Deltran and never worry about my battery again
You've had better luck than me. I haven't had a Yuasa last more than 6 months when using the electric starter. I followed the exact procedure with the acid, charging etc. I did have good luck with the YTZ7S from Scorpian which was about $70.00. It lasted over 5 years and is still in my bike. It will electric start the bike sometimes now. I just kick it right now because I'm cheap. My wife's RIF recently set the battery back also.
I just checked Batterystuff.com the battery is now $50.00
I will check out other options members have mentioned since some are getting well over 7 years on some batteries now.
 

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I have one of those LiPo types. Don't remember the brand but it's one of those with the 'reserve' button in case it gets drained. Anyway when I got it I stuck it in the bike without charging and it's been there for over a year. Fires it up every time and I have cranked it a lot when playing with the carb and other mods. Never been on a charger or 'float'. Sometimes sits for weeks between starts, still no problem. Cost around $110 US as I remember. Oh, and my bike sits outside. Yeah, it's Florida but we have had 4-5 days in a row where it gets mid to high 30s at night and mid 50s during the day.
 

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I bought a 2019 Tw200 and the battery was dead. I bought a new AGP battery from my local motorcycle dealer. I took a cheap model (Chinese copy of a YUASA YTZ7SS) but after charging it completely it only had 12.5v. I tried with 2 different chargers and same result. I took it back to the store and they tested it and it was 75% charged and it was 60% healthy.

They advised me to take a real YUASA YTZ7SS at $220, which I did to have no more problems. when fully charged it only had 12.6 volts (tested with 3 different multimeters) and I tried charging with 2 different smart chargers. I even bought a Battery Tender Jr to be sure and still the same, the charger stops and says the battery is full but it's only 12.6V. I therefore went to the store again and he put the battery to charge on his charger overnight. The next day when I went back there he tested and it was the same, just 12.6V and his tester was giving like 80% charge but the battery health was at 105%. He said it must be faulty so he exchanged me for a similar one.

Arrived at home I charged this third battery immediately and after a full charge I tested it at 12.9V, finally ! But a few hours later I retested and it was back to 12.7V. Is it normal or not? I really don't know what to think anymore. What do you think ?


PARTZILLA.com are well less expensive, a Genuine Yamaha OEM battery there costs $71….WAY less than the pics you paid, web linkM


Their Web Site shows an easy to use sketch of the different parts by category. The parts there are numbered.
Then below, you see part number, price and availability.

I’ve used them several times with ZERO complaints. Maybe worth a look in the future. Just a thought !!
 

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As a fellow Canadian, I'd like to remind everyone that most stuff the price is simply way higher here (ignoring the dollar conversion, etc). If a Chinese carb conversion costs everybody stateside $30, then the carb will cost us $55, and then considerably more to get it to us.
I bought a Goldwing last spring, the seller knew it needed a battery so he went and got one before I picked it up. It was from the local "parts-co" or whatever store, and he knew the salesman and got jobber pricing on it. It was still a shade over $186.
We SEE these parts at these great prices, but if you can get the place to ship to Canada, which a LOT won't, the shipping will be more than the item costs anyway.

Quick example. Pro-Cycle (and not to pick on them, everybody;s the same...)
Left side cover gasket $10.95
Cheapest shipping USPS First Class Domestic: $6.00
Total $16.95

For me:
Cover gasket: $14.59 in my bucks
Cheapest shipping: USPS First Class International (1-180 days in transit, no lost or damage assistance available) $26.65 Canadian dollars.
HST (15%) $6.18
For a total of $47.78...compared to $16.95.

This runs about even with nearly anything you want to buy. BPK knives, for example...watching reviews..people in the US, "This knife was, like, $30, I think.." I price it out, $75...
A couple months ago, a 19 year-old TW that you had to recover from the bottom of a lake yourself was selling for around US msrp.


And you know that parts suppliers in Canada know damn well what it would cost us to buy stateside, so their prices are inflated accordingly.

Fortnine is my usual online place to buy bike stuff online. I checked there...they have a Bikemaster Gel batter that's out of stock, and then 3 acid batteries that start at $92, and.."Acid sold separately"..because they can't ship the acid, so you have to buy it locally. Interestingly enough, I bought a Bikemaster AGM 7 years ago for my other TW, just for peace of mind....and it lasted 2 weeks. Flat. But it would show just over 12v...lights would come on, hit the starter and it would do nothing, crash to 0v, then slowly recover again over about 5 minutes. I emailed Fortnine and you could almost hear them saying, "Ugh, another one?" They just asked for the serial number, then issued a full refund no questions asked. So I have a feeling that they had a pile of them be defective. Anyway, put the old lead acid battery back in it, said screw peace of mind, and that battery was find until I eventually sold the bike.

Sorry...way off track.

Anything you go to buy, it'll be around double the US price..plus than another arm or leg to get it shipped.
And, this anger is coming from a person that had farkled out a 2015, then sold it to buy something different...then 7 bikes later he's back at a 1999 TW, and in the process of re-farkling at post Covid "You got a purdy mouth" prices. Ugh.

And I don't mean to sound like I'm complaining...just trying to help my Canadian brudder up there feel a bit better. :)
I mean, things here are pretty sweet....our dollar is worth 75 cents today....this weekend there's a weather warning calling for wind chill values as low as -47 degrees....And I tried to save a few bucks by buying a chain and sprocket set from a company named Niche. They should have called themselves Squeesh instead...because that's the noise the f***ing cheese that their crap is made out of makes. Okay, I think I'm done.
 

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1999 TW200
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As a fellow Canadian, I'd like to remind everyone that most stuff the price is simply way higher here (ignoring the dollar conversion, etc). If a Chinese carb conversion costs everybody stateside $30, then the carb will cost us $55, and then considerably more to get it to us.
I bought a Goldwing last spring, the seller knew it needed a battery so he went and got one before I picked it up. It was from the local "parts-co" or whatever store, and he knew the salesman and got jobber pricing on it. It was still a shade over $186.
We SEE these parts at these great prices, but if you can get the place to ship to Canada, which a LOT won't, the shipping will be more than the item costs anyway.

Quick example. Pro-Cycle (and not to pick on them, everybody;s the same...)
Left side cover gasket $10.95
Cheapest shipping USPS First Class Domestic: $6.00
Total $16.95

For me:
Cover gasket: $14.59 in my bucks
Cheapest shipping: USPS First Class International (1-180 days in transit, no lost or damage assistance available) $26.65 Canadian dollars.
HST (15%) $6.18
For a total of $47.78...compared to $16.95.

This runs about even with nearly anything you want to buy. BPK knives, for example...watching reviews..people in the US, "This knife was, like, $30, I think.." I price it out, $75...
A couple months ago, a 19 year-old TW that you had to recover from the bottom of a lake yourself was selling for around US msrp.


And you know that parts suppliers in Canada know damn well what it would cost us to buy stateside, so their prices are inflated accordingly.

Fortnine is my usual online place to buy bike stuff online. I checked there...they have a Bikemaster Gel batter that's out of stock, and then 3 acid batteries that start at $92, and.."Acid sold separately"..because they can't ship the acid, so you have to buy it locally. Interestingly enough, I bought a Bikemaster AGM 7 years ago for my other TW, just for peace of mind....and it lasted 2 weeks. Flat. But it would show just over 12v...lights would come on, hit the starter and it would do nothing, crash to 0v, then slowly recover again over about 5 minutes. I emailed Fortnine and you could almost hear them saying, "Ugh, another one?" They just asked for the serial number, then issued a full refund no questions asked. So I have a feeling that they had a pile of them be defective. Anyway, put the old lead acid battery back in it, said screw peace of mind, and that battery was find until I eventually sold the bike.

Sorry...way off track.

Anything you go to buy, it'll be around double the US price..plus than another arm or leg to get it shipped.
And, this anger is coming from a person that had farkled out a 2015, then sold it to buy something different...then 7 bikes later he's back at a 1999 TW, and in the process of re-farkling at post Covid "You got a purdy mouth" prices. Ugh.

And I don't mean to sound like I'm complaining...just trying to help my Canadian brudder up there feel a bit better. :)
I mean, things here are pretty sweet....our dollar is worth 75 cents today....this weekend there's a weather warning calling for wind chill values as low as -47 degrees....And I tried to save a few bucks by buying a chain and sprocket set from a company named Niche. They should have called themselves Squeesh instead...because that's the noise the f***ing cheese that their crap is made out of makes. Okay, I think I'm done.
LOL EPIC RANT! 🤣
 

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We're told Canada's higher prices are understandable considering the costs entailed in providing it citizens with all the benefits of democratic socialism and social democracy. I would go ahead get the more expensive battery and other parts and not try to compare things with any another country that embraces a more private sector market driven economy. If you have to compare feel good that here in US no way can you get In-Home Euthanasia with Group /Communal Cremation for only $550 to $700 including HST :)
 
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