Author Topic: Shorai Battery  (Read 22389 times)

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Offline Diderot

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Shorai Battery
« on: April 27, 2012, 06:46:55 pm »
Has anyone put a Shorai LFX21A6-BS12 battery in their Concours 14. The claims make this sound like an impressive technological advance. I am thinking of buying one but would like to hear some positive recommendations from owners with experience before buying one.

Thank you,
Peter Page  9456

Offline jasonc32amg

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Re: Shorai Battery
« Reply #1 on: April 27, 2012, 07:42:48 pm »
I've got my eye on this as well. Combined with a full exhaust that is a chunk of weight.
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Offline Fred_Harmon_TX

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Re: Shorai Battery
« Reply #2 on: April 27, 2012, 08:08:49 pm »
I have one in my bike. The 21 amp/hour fits a whole lot better than the 18 amp Shorai I had in previously. Though the 21 amp hour is a bit heavier than the 18. I think the 18 amp hour weight about 1.5 lbs, and the 21 amp/hr weighs about 3 lbs. But its still about 10 lbs lighter than the OEM battery.

« Last Edit: April 27, 2012, 11:05:16 pm by Fred_Harmon_TX »
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Offline Necron99

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Re: Shorai Battery
« Reply #3 on: April 28, 2012, 02:49:57 pm »
You've had that over a year now, right Fred?  Still performing without any differences from the old tech?  I don't see a reason to get rid of my existing battery, but when it's time to replace... a year or two from now I suppose....

Offline Diderot

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Re: Shorai Battery
« Reply #4 on: April 28, 2012, 03:26:56 pm »
There are two reasons I have for wanting to change the battery on my bike. When I bought my 14 there were spots on the clutch cover where the paint had gone. I couldn't figure out what had caused it. I had never owned  a motorcycle with the battery in the position it is on with a 14. At the end of the first season I removed the battery for storage/charging and noticed the person who had done the P.D.I. on my bike had been sloppy and not rinsed and cleaned the battery after filling it with acid. The acid on the top of the battery had leaked and removed the paint from the bottom of the cavity for the battery. Some acid had trickled out and fallen onto the clutch cover. I repeatedly rinsed these areas with baking soda and water and then used a powerful Shopvac to dry the matting under the battery.

The posts on my battery seem to have corroded more than normal; so I am suspicious there may be small amounts of acid leaking out of the battery. The idea of having a battery that doesn't have acid appeals to me. The second reason is I have been very impressed with the performance of the Lithium Ion battery in my camera. It is much smaller than a pair of AA's and holds more energy for a longer period of time. If it were possible to avoid the problems I have mentioned with batteries containing acid and realize similar performance advantages I have experienced with my camera; I believe these would qualify as two compelling reasons to change.

Offline Necron99

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Re: Shorai Battery
« Reply #5 on: April 28, 2012, 04:00:53 pm »
I'd be having a conversation with the dealership, if that was my issue, if I'd purchased the bike new from them.

Offline Diderot

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Re: Shorai Battery
« Reply #6 on: May 02, 2012, 05:34:32 pm »
After seeing the poor job done with the PDI; I'm not confident having mechanics at my local dealer working on my C14. I do all the work  myself. I put myself through university by working as a motorcycle mechanic. While working at motorcycle dealerships I became painfully aware of the economics of working as a skilled tradesperson. Anyone dedicated and intelligent enough to be a competent motorcycle mechanic can get a job with better pay, security and benefits. This is a result of the efficiency of modern manufacturing that has made many products disposable items.
When I consider the wages, benefits and security offered to people willing to work as motorcycle mechanics, I expect the best ones see the job as a stepping stone to better occupations. I am not complaining. The same manufacturing efficiency makes incredible products, such as the C14, available. Being a motorcycle owner in 2012 means we can expect to buy incredibly well designed and made motorcycles but not expect particularly skilled or professional mechanic. All progress involves some trade offs. If you are capable of performing skilled, professional service on your own motorcycle you are enjoying the best of two different times in the development of manufacturing history; a lucky position to be in.
I suspect the existence of forums, such as this one, exist to satisfy the desire of capable, curious owners to own modern sophisticated products and develop skills that have limited market value. 

Offline Fred_Harmon_TX

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Re: Shorai Battery
« Reply #7 on: May 02, 2012, 05:55:41 pm »
Being a motorcycle owner in 2012 means we can expect to buy incredibly well designed and made motorcycles but not expect particularly skilled or professional mechanic. All progress involves some trade offs. If you are capable of performing skilled, professional service on your own motorcycle you are enjoying the best of two different times in the development of manufacturing history; a lucky position to be in.
I suspect the existence of forums, such as this one, exist to satisfy the desire of capable, curious owners to own modern sophisticated products and develop skills that have limited market value.

I tend to agree. I also believe no one will ever maintain a motorcycle better than the owner, and I'd encourage all owners to try to learn how to do as much of their own maintenance and repair as possible.

As for the battery, I originally had the 18 amp/hour Shorai in the bike, but just recently upgraded to the 21 amp/hour. I never had any problems with the 18 amp/hour being able to crank the bike, but the 21 amp/hour is a better fit to the tray and cavity.

I've often wondered about the location of the battery inside the frame in the C14 and how much heat it gets exposed to in the summertime when the bike is fully heat soaked. I'm sure this is bound to shorten the batteries lifespan in this bike. Supposedly the Lithiom Iron batteries can withstand heat and vibration better, but time will tell. I wish Kawasaki would have found a way to mount it under the seat, but at least they didn't mount it up under the dash like Yamaha did on the FJR. Now that is a really bad location for a battery if I ever saw one.
« Last Edit: May 02, 2012, 05:59:11 pm by Fred_Harmon_TX »
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Offline MidlifeCrisis

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Re: Shorai Battery
« Reply #8 on: May 02, 2012, 06:38:12 pm »
I love the LFX18A1-BS12 I have in my Aprilia.  I will be buying a Shorai for my C14 whenever the current battery starts to get iffey.

One thing to keep in mind is LiIon batteries are sensitive to over-charging as well as over-discharging.  Don't use a charger that puts out more than 14.4V, as some de-sulphating mode charger do this.  And do not allow the Li-Ion battery to drain down completely.  It's bad for Lead Acid battery already, but it is a death sentence for Li-Ion or Li-Po batts.  It is a good idea to get a balancer charger for any Li-Ion batts.  You don't have to use it all the time, but it is a good idea to balance the cells occasionally.  This way, you minimize the possibility of over-charging and/or over-discharging some cells within the batt.
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Offline Mad River Marc

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Re: Shorai Battery
« Reply #9 on: May 02, 2012, 07:03:57 pm »
Fred, did the 21 amp hour fit without any poker jiggery or did you have to rig something to hold it in place?
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Offline Fred_Harmon_TX

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Re: Shorai Battery
« Reply #10 on: May 02, 2012, 07:21:54 pm »
Fred, did the 21 amp hour fit without any poker jiggery or did you have to rig something to hold it in place?


The 21 amp/hr is just about the exact same size as the OEM. I did have to remove a small section of plastic from the top of the battery lid cover to get it on and I put a small piece of the foam shim that comes with it on the bottom, but that was about it.

I also had to straightened out some of the bends on the tabs for the connections to it, since the battery posts are a slightly different size.




« Last Edit: May 02, 2012, 07:23:41 pm by Fred_Harmon_TX »
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Offline Rusty

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Re: Shorai Battery
« Reply #11 on: December 26, 2013, 11:39:13 pm »
Looking at a new battery for my 2008.....The Shorai is very tempting. Price for the LFX21A6-BS12- is $229.00 Yuasa at Cycle Gear is $98.00. Huge difference in weight,over 5 pounds and price. Any comments on a Battery to purchase? Will they both last about the same? My OEM battery after 6 years is getting a little iffy. Thank you  :motonoises:

Offline Gypsy JR

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Re: Shorai Battery
« Reply #12 on: December 27, 2013, 09:38:59 am »
We were using these in the ZX14 world since they first were available. Warning, Will Rogers....... these batteries hate the cold. It will kill them.
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Offline Rembrant

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Re: Shorai Battery
« Reply #13 on: December 27, 2013, 06:53:25 pm »
After seeing the poor job done with the PDI; I'm not confident having mechanics at my local dealer working on my C14. I do all the work  myself. I put myself through university by working as a motorcycle mechanic. While working at motorcycle dealerships I became painfully aware of the economics of working as a skilled tradesperson. Anyone dedicated and intelligent enough to be a competent motorcycle mechanic can get a job with better pay, security and benefits. This is a result of the efficiency of modern manufacturing that has made many products disposable items.
When I consider the wages, benefits and security offered to people willing to work as motorcycle mechanics, I expect the best ones see the job as a stepping stone to better occupations. I am not complaining. The same manufacturing efficiency makes incredible products, such as the C14, available. Being a motorcycle owner in 2012 means we can expect to buy incredibly well designed and made motorcycles but not expect particularly skilled or professional mechanic. All progress involves some trade offs. If you are capable of performing skilled, professional service on your own motorcycle you are enjoying the best of two different times in the development of manufacturing history; a lucky position to be in.
I suspect the existence of forums, such as this one, exist to satisfy the desire of capable, curious owners to own modern sophisticated products and develop skills that have limited market value.

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Offline Grommet

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Re: Shorai Battery
« Reply #14 on: December 30, 2013, 11:29:23 pm »
I put that 21 shorai battery in my bike before going on a 3500 mile trip in late aug.
The Heat on the trip was at or over 100deg several days,I baked a lot more than the battery and my ankles were cooking hot.
I was thinking about the battery and the dash read 14.4 all the time steady,and cranking speed was clearly faster.
never did I have a problem with the battery or this fantastic Bike!! Its perfect for me.
After the factory battery I had installed the top o the line interstate battery,what a joke.,,and they tested it and said its good, the shorai can sit for months and fire the bike fast. and that cranking speed is faster .. a++ from me



Offline Jorge

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Re: Shorai Battery
« Reply #15 on: December 31, 2013, 02:15:24 am »
When I saw the Shorai at the Indy show, I looked them up. They have cicuitry built into them to make them act like a lead-acid battery, so I suspect that they protect themselves from over or under charging. It is very true that most (maybe all) Lithium-ion batteries will be killed by cully charging or deep discharging, but what Li-ion pack makers do is use only a portion of the "real" capacity of the cell. This allows them to be useful for a much higher number of charge/discharge cycles.
It's quite possible that Shorai packs could do 2 or 3 times the rated energy, but without the protections, they would not last very long.
It is also true that Li-ion packs are sensitive to the cold; not sure how cold the Shorai packs can go.
Unless Shorai is using some really special chemistry, they may bebe more sensitive to high temperature than lead-acid batteries. Hopefully Shorai has built in protections for temperature extremes also.
They are amazingly light for what they do, and may last longer than lead-acid. If I had learned about the a month earlier, I might have gotten one, but I had just purchased one built by Penn (good maker).

Offline Gypsy JR

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Re: Shorai Battery
« Reply #16 on: December 31, 2013, 09:35:29 am »
Shorai makes a charger/maintainer which is a little different from a normal float charger like a Battery Tender. But they say you can charge their batteries with a normal float charger.

In the ZX14 world, we had reports of early hard failure (replace type failure) of Shorai batteries in cold weather. Since then they may have improved cold weather reliability. I know they improved heat tolerance on them.
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Offline Necron99

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Re: Shorai Battery
« Reply #17 on: December 31, 2013, 10:45:30 pm »
My post in april of 2012 was accurate... a little more than a year later, I had to replace the factory battery.  I'm very happy with my Shorai.

Offline Gypsy JR

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Re: Shorai Battery
« Reply #18 on: December 31, 2013, 11:21:09 pm »
My post in april of 2012 was accurate... a little more than a year later, I had to replace the factory battery.  I'm very happy with my Shorai.

I had a battery fail on my 2012 at almost exactly the one year mark too, replaced under warranty.
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Offline Rusty

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Re: Shorai Battery
« Reply #19 on: January 11, 2014, 04:10:49 pm »
I put that 21 shorai battery in my bike before going on a 3500 mile trip in late aug.
The Heat on the trip was at or over 100deg several days,I baked a lot more than the battery and my ankles were cooking hot.
I was thinking about the battery and the dash read 14.4 all the time steady,and cranking speed was clearly faster.
never did I have a problem with the battery or this fantastic Bike!! Its perfect for me.
After the factory battery I had installed the top o the line interstate battery,what a joke.,,and they tested it and said its good, the shorai can sit for months and fire the bike fast. and that cranking speed is faster .. a++ from me

Cannot argue with a California rider.......Looks like I am going with the Shorai. One thing I do not worry about is very cold temperatures. Any more comments out there?   :motonoises:


Offline KennyS

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Re: Shorai Battery
« Reply #20 on: May 19, 2014, 02:30:01 am »
Looking at a new battery for my 2008.....The Shorai is very tempting. Price for the LFX21A6-BS12- is $229.00 Yuasa at Cycle Gear is $98.00. Huge difference in weight,over 5 pounds and price. Any comments on a Battery to purchase? Will they both last about the same? My OEM battery after 6 years is getting a little iffy. Thank you  :motonoises:
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Offline Rob

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Re: Shorai Battery
« Reply #21 on: May 20, 2014, 05:30:53 pm »
Has anyone put a Shorai LFX21A6-BS12 battery in their Concours 14. The claims make this sound like an impressive technological advance. I am thinking of buying one but would like to hear some positive recommendations from owners with experience before buying one.

Thank you,
Peter Page  9456


When I purchased my used 2008 the previous owner had installed the smaller Shorai battery. It was snuggled into the compartment with blocks of dense foam to keep it in place. It worked fine.

I decided I wanted to add the Shorai charger. Not to fix any problems but because of an innate desire to fiddle with things and spend money.

The charger has a multi connector that fits into a female connector behind the little white cover seen between the two terminal posts. I will say the connection seems a bit delicate for a motorcycle.

Sadly the charger must have been defective as it killed the battery within a month. Shorai provided excellent warrant service replacing the charger and sending me the new larger battery. The larger battery fits much better than the original one.

The battery lead for the Shorai has a multi connector. I think the connection will prove problematic is you're not very careful every time you connect and disconnect the charger.

The Shorai http://store.shoraipower.com/Products/Shorai-Dedicated-Charger.html has a couple of useful functions specific to their battery. I'm very impressed with the product.

Offline TLR

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Re: Shorai Battery
« Reply #22 on: February 21, 2015, 04:20:43 pm »
Hi All,

My battery shows signs of getting iffy, and am thinking about a new one, but not the OEM kind.

Last post here was about nine months ago, and wonder if anyone has some updates about Shorai batts.

Any other failures since then?

Any charger issues?

Any other recommendations, besides the Shorai batteries?  Odyssey batteries?
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Offline Scup

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Re: Shorai Battery
« Reply #23 on: February 21, 2015, 06:05:15 pm »
I've been using Shorai for 3 years in my '78 Ducati and my '94 VFR without any issues.

I just installed one in my C-14 today, all is well.

Check Amazon: http://www.amazon.com/gp/product/B00JXAH7NQ/ref=oh_aui_detailpage_o01_s00?ie=UTF8&psc=1

$181.00 & free shipping

Josh

Offline Fred_Wa2gzw

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Re: Shorai Battery
« Reply #24 on: February 21, 2015, 08:58:59 pm »
I see that the original poster is from the North East.  I had read somewhere that the performance of the Shorai Battery is greatly compromised during cold temps. and that the cranking power becomes much less than a conventional lead acid battery.  Mind you that I have no first hand experience and defer to the knowledge of others when it comes to this product.

Fred
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