I have one for my SV track bike, but I haven't fired up the bike yet.  They are almost laughably compact and light.  I was advised that one of the tiny ones would be fine for a race bike, but I decided that I could handle the extra four ounces 

Quote from: xcaptainxbloodx on January 12, 2011, 08:13:26 PM
30$ a pound to lose sprung weight? are all you guys so fit that you couldn't lose 7lbs by eating better?

New toys are fun; losing weight isn't.  But since you asked, I've lost 15 lbs. since last summer 

I use the Yuasa YTZ12S on my S2R1000 and have never had problems with starting. I do keep my bike on the tender though.

We've been using the Shorai for awhile now. They work very well.

http://www.ducatimonsterforum.org/index.php?topic=45035.0

We've used the YTZ7S, Oddyssey 310 and the Speedcell batteries on our project bikes. Up to this point the Speedcell was our favorite. The Shorai works as well as the Speedcell but they work a little better in cold and should be more durable. The Shorai batteries are lighter, less expensive, more amp hours and have a good warranty.

We recomend the Shorai Lithium Iron LiFePO4 Battery LFX14A1-BS12 for most monsters.

Register on our website for passwords to access discounts on the Shorai and other products.

^^^^You fail at the links  ^^^^

http://www.motowheels.com/italian/mySearchResult.cfm?parentcategoryid=&productID=8926&showDetail=1&categoryID=1321|Sport%20Classic%20Electrical%20%26%20Lighting&vendoridtodisplay=0&filterFor=Shorai%20&collection=

moto info fr another Forum:

QuoteWe are testing it on our own bikes so we have first hand experience--but the company has been using these batteries in aviation and submarine applications for 9 years - so they have been subject to some extreme testing already.

Sounds good.

Talked to the Shorai folks at the DC IMS and they were pretty cool. They had a traditional lead battery next to one of theirs and the weight difference is impressive: it felt as if theirs was full of air!

They suggested buying from batterystuff.com since they offer free ground shipping, not just on Shorai batteries btw.

Quote from: eyduc on January 13, 2011, 06:42:50 AM
When upgrading your battery, I would consider more AH and CCA before weight.    Less weight is a benefit but not necessary.   If it had less AH/CCA than OEM but weighed less, it would need to be charged more often and will be stressed more from starting.   In that case, it wouldn't be worth it to me.   But, looking at the options for the batteries you were considering, it seems all of them exceed the OEM specs.   

Some alternate batteries from another post:
Yuasa YTZ12S (11 AH, 210 CCA, 8.1 lbs.), $175
Odyssey PC680MJ (19 AH, 280 CCA, 15.4 lbs.) $154, metal jacket for high heat.
Odyssey PC680 (17 ah, 220 cca, 14.9 lbs). $134.

More weight but way more AH and CCA. 

The biggest Shorai battery everyone is talking about on here has a 18ah and 270cca but only weighs 2.10 lbs.  You get all the power you need and the weight savings.  These batteries also don't lose power like a normal one does just by sitting.

Well, looks like it's a very convincing option!  I'll add it to the top of my list.  I'll likely wait til my oem battery starts to weaken.  No sense replacing a good battery.

Also, the new battery cable upgrade kit would be a great mod.

Quote from: eyduc on January 16, 2011, 10:31:58 AM
Well, looks like it's a very convincing option!  I'll add it to the top of my list.  I'll likely wait til my oem battery starts to weaken.  No sense replacing a good battery.

Also, the new battery cable upgrade kit would be a great mod.

We were planning to create our own line of battery cables when we came across the motoelectric hi-capacity cables. These are better than anything we could make, they are very complete and work very well.

http://www.ducatimonsterforum.org/index.php?topic=45690.0

got my shorai today.  Going to put it in later this evening I hope. 

Installed.  Starts up great.  I weighed both batteries when I had them out and there's exactly a 6lb difference.  There's also a size difference as shown here, but the Shorai came with a ton of dense foam with sticky backing.   Impressed so far. 

Shorai makes a smaller 14 battery if you want to mount it somewhere else other than the stock location. It has the same power as the larger 14.



Shorai Lithium Iron LiFePO4 Battery LFX14A2-BS12

Does the little one weigh less again? I would like a battery in the sub 1kg range for my M900 if possible. I do have JE high comp pistons, but have the Euro switch gear to have the headlight off while starting, vacuum fuel pump and basic igniter ignition. What's the smallest I could go?

They are all sub 1kg. Even the biggest one.

Quote from: koko64 on January 20, 2011, 09:47:04 PM
Does the little one weigh less again? I would like a battery in the sub 1kg range for my M900 if possible. I do have JE high comp pistons, but have the Euro switch gear to have the headlight off while starting, vacuum fuel pump and basic igniter ignition. What's the smallest I could go?

The weight is almost the same between the smallest 14 and the largest 18 battery ( 2.1-2.2 lbs).

I would use the larger 18 battery because it has more starting power for the high comp piston. It also has more reserve and should last longer.

Shorai Lithium Iron LiFePO4 Battery LFX18A1-BS12

or the

Shorai Lithium Iron LiFePO4 Battery LFX18L1-BS12

depending on which way your battery posts are configured.