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Shorai LFX Lithium Battery

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Shorai LFX Lithium Battery

The Shorai LFX Lithium motorcycle batteries are some of the lightest and most powerful replacement batteries available!

See Shorai Specifications and Dimensions data sheet (pdf) for fitment guide and specifications.

Most powersports enthusiasts have gotten used to hooking up a tender to their lead-acid batteries, all the time. Shorai LFX have much slower self-discharge than the best lead acid do (1/6 to 1/7, on average), they do not sulfate as capacity drops, and they are the ultimate "deep cycle" battery, which means that they can still crank your vehicle even if the remaining capacity is quite low. Therefore most riders will not need to use a tender at all. 

A fully charged LFX can sit for a year or more and still retain adequate starting capacity, without damaging the battery. As such, any vehicle which has no current flowing when the key is OFF should never need a tender. At most it should be charged every 6 to 12 months, depending on the average storage temperature (cool storage is much better for any battery).

Newer vehicles may have a significant draw even when the key is OFF, to maintain clocks and computers, etc. In this case Shorai expects that a few hours of riding per month will be all that is needed to avoid tending. If you know that you will go a number of weeks or months without riding, you can either attach a tender, or disconnect the negative cable from the battery. In any case, during storage you may use the voltage chart above and an accurate voltmeter, and consider recharging when the battery is around the 50% capacity remaining mark, or above.


  • Ultra light - one fifth the weight of lead-acid batteries on average
  • Zero sulfation for longer service life
  • Holds unloaded charge for one year without maintenance
  • Military spec Carbon Composite Case
  • Faster cranking for better starts
  • Super-fast recharge rate
  • No explosive gasses during charge, no lead, no acid
  • Environmentally friendly
  • Two-Year Warranty!

Shorai recommends NOT using a charger/tender if it has an automatic "desulfation mode," which cannot be turned off. Shorai has confirmed with Deltran, makers of the "Battery Tender" brand, that their products do NOT have a desulfation mode, and are therefore OK for use with Shorai LFX. However the best possible charger/tender for Shorai LFX is the Shorai SHO-BMS01 Battery Management System.

  • Case Size 1: 148mm length
  • Case Size 2: 113mm length
  • Case Size 3: 166mm length
  • Case Size 4: 148mm length
  • Case Size 5: 134mm length
  • Case Size 6: 148mm length 

See Shorai Specifications and Dimensions data sheet (pdf) for fitment guide and specifications.

Please Note: It is extremely important that you use only the appropriate battery for your bike! A battery with incorrect amperage may damage the battery or worse yet, your ride. 

Shorai Batteries may not be a drop in replacement, some modification to battery box, terminals etc may be necessary.

If you have any questions about which battery may work for you, please call us at 877-792-9455.

View Fitment Notes & Exceptions

Fitment Notes & Exceptions

This is a universal fit part; it may or may not fit without modification.

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Shorai LFX Lithium Battery 4.5 5 64 64
great cranking power and amazingly light The battery cranks faster and starts about 80 % quicker, when the bike is cold, than any new yusa battery I've had in the past 40k miles on my 2003 r1. Too early to comment on durability. April 15, 2014
You can't beat a Shorai Battery These batteries hold their charge and they are noticeably lighter than your standard battery. Winter on the East Coast would zap my prior battery and it would take forever to charge up when riding. I haven't had a problem with my Shorai. The price is completely worth the reliability. Highly recommended. April 7, 2014
light weight and long lasting these batteries are significantly lighter then oem acid counterparts.They hold their charge for much longer and are actually easier to install. April 7, 2014
Unacceptable below 40 degrees F Note- if you live in a warm climate where is stays above 40 degrees, I highly recommend the battery. But......despite claims from Shorai that the battery needs to "warm up" before it'll start in cold weather, I found the batteries performance unacceptable. Below 40 degrees I gave it the recommend 5 minute warm up by leaving the lights on, aux lights, heated grips, and even heated jacket and gloves. Nothing would wake up the battery but several failed start attempts. When trying to start, the low voltage would trigger faults in my KTM's dashboard and zero the clock every time. At least the battery never left me stranded, but it's hard on the bike and embarrasing to go through 5-10 start cycles to get the battery to spin up the motor. I sold it to a forum member in Arizona who won't have that problem. I put in a new lead acid Yuosa and it starts instantly in 10 degrees. This is taken from the shorai's website and it completely false: "Down to about 20 degrees Fahrenheit (-7C) most users find that they can start normally on first crank. If your headlight comes on at key-ON, it is good for the batteries to flow some current before cranking in cold weather. The suggested headlight-on time before cranking depends on the temperature. If starting at 40F/5C, 30 seconds will help wake the battery and increase cranking performance. If at 0F/-17C, leave the lights on for 4~5 minutes before cranking. The result will be a better first crank, and longer battery life. If the engine fails to start on first crank, that first crank has warmed the battery, and the second attempt will be much stronger. Other accessories that can be turned on before cranking can also be used for this purpose, such as heated gear, radio, etc... Insuring that the battery is fully charged after storage also improves first-start performance in cold weather." April 7, 2014
Love this Battery!! received battery 3 days after ordering. Very easy to install, took less than 10 minutes. "plug and play" As soon as hooked up, Bike started right up. This battery is soooo light compared to my original, I'm speechless. Only complaint is a bit expensive, but you get what you pay for. March 27, 2014
Excellent Battery , Better than expected I did some sole searching before buying this battery ,Price, Longevity,Performance And Which Lithium battery manufacturer had the best review and which had least bad ones, I will never buy another regular battery again, This product rocks! March 24, 2014
Bulletproof battery Finally a battery that doesn't leak charge and doesn't need any complicated charging procedures. Just install the new battery and run the bike a bit to fully charge the battery. The foam spacers that are provided come in very handy for tailoring the size of the battery box. Overall I can't say I've ever been more pleased with a battery. March 20, 2014
Great replacement for OEM Original OEM battery (BMW R1200r) died from cold storage. Replaced with the Shorai - it is super light compared to the OEM acid with boosted amps and cold weather performance. Pricey compared to OEM but worth the spend in my humble opinion. March 10, 2014
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Have a functionality, fit, or otherwise product-specific question about the Shorai LFX Lithium Battery? Ask it here! If you have a customer service or shipping question, please direct it to our Customer Service department.

Shorai LFX Lithium Battery
Already Asked: 12 Questions, 50 Answers
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RevZilla Store asked: Why did you choose this?
Jenifer E: tired of dead batteries Apr 17, 2014
Adam H: I'm tired of batteries that sulfate. Changing a battery in my Yamaha FZ6 is PIA. Hopefully now I won't have to change it for many years. Apr 10, 2014
Harry O: Revzilla had the best price on these lithium batteries Apr 2, 2014
Jimmy W: Good reviews on battery. Lighter than standard, more cranking power. Mar 28, 2014
Brett G: On the recomendation of Revzilla staff. Mar 23, 2014
J T: cheapest way to cut weight off the bike. cuts 4 bls! Mar 21, 2014
Amado A: Smaller in size Mar 19, 2014
Randall M: Theoretically lighter weight, longer life, and lower maintenance. Turns out you cannot leave these batteries installed and not charge them periodically. Draw from the electronics will discharge them. Plan on getting the Shorai charger system too. Mar 5, 2014
Robert B. W: Light weight, newer technology, good reviews. Feb 15, 2014
B M: high positive feedback Jan 11, 2014
victor m: i wanted to try it out Jan 4, 2014
James N: Previous experience with them has been good. Jan 3, 2014
L A: Seems to be the leading brand so I wanted to see if it rings true. Dec 21, 2013
Ben C: This is my second lithium battery. The first one from another brand died after 3-4 years. I buy these for the weight savings. If you're going to spend $1,000+ on titanium headers to lose 14 lbs, then you should be willing to spend an extra $50 losing 5lbs of battery weight. Besides the weight savings they last much longer and turn over the engine quicker. Dec 20, 2013
Robert S: Wanted more oomph when starting the bike. The huge weight savings was a nice bonus. Dec 19, 2013
Ryan A: Smaller and lighter than traditional battery, and the reviews here and other sites seem to suggest its an excellent choice. Not requiring a battery tender all the time is also an obvious bonus. Dec 17, 2013
Charles T: Online reviews were very good plus I have a friend that purchased one a while back and he likes it a lot. Dec 11, 2013
Jon B: Read alot about these batteries and ready to try a change from the lead acid batteries. Dec 10, 2013
Nesho D: Because of the promise of trouble free cold starts. Oct 31, 2013
Jeffrey J: Great in warm weather. Very light. A pain in the cold. I have worked out a solution but below 40 F and it will not start your bike without an elaborate protocol. Oct 22, 2013
Joe R: light weight. i can add pelican bags to my KLR with almost a net zero gain in weight. Sep 22, 2013
David F: Good brand. Guaranteed to work for my model bike. Sep 7, 2013
wade m: great staring power, very light and the fit was easy to manage on the 1200GS Sep 2, 2013
Michael M: From the ads on TV Aug 25, 2013
A shopper asked: Will my battery charger work on the lithium battery? Oct 1, 2013
Answer this · Send to friends Good question? Yes (2) No (0)
Eric J: This is straight from Shorai's FAQ:


Yes. HOWEVER, you may NOT use a charger/tender if it has an automatic "desulfation mode", which cannot be turned off.

If you are storing your vehicle and want to check the remaining capacity, or you're a racer with a constant-loss system, you'll want to know how resting voltage (i.e. with no load or load under 200mA) maps to remaining capacity. LFX batteries should be maintained such that 20% capacity remains at minimum, as best practice. Use a good-quality voltmeter to check remaining capacity, and consider recharge whenever the battery capacity falls to about 50% remaining. Of course, if you get the Shorai dedicated BMS01 charger, you can just hit the "Store Mode" button and leave it to do the work for you.
Oct 1, 2013
Reply to Eric Good answer? Yes (0) No (0)
Brads W: I use my BikeMaster automatic charger to to keep my machines fully charged with the Shorai Li battery's.

Chargers output is 12V, 900mA, I have pigtails attached to each battery and if a machine hasn't been used in a month, I run the charger for a day.

I also fully charged the Li battery's before charging prior to install.

Installed on KTMs 950ADV, 525, 530 and 450, love the battery, and its easy maintenance.
Oct 1, 2013
Reply to Brads Good answer? Yes (0) No (0)
Charles P: I've had about three of these batteries the past two years, most recent was for a BMW R1200RT. My understanding is that a regular charger shouldn't be used on the Lithium batteries. However they stay charged on their own forever, not at all like other batteries. I went about 8-9 months without starting, but the lithium battery was still very, very strong. Oct 1, 2013
Reply to Charles Good answer? Yes (0) No (0)
Gregor L: The Shorai website indicates that their charger as well as chargers that don't have a desulfation mode will work with their batteries. The Battery Tender chargers are safe to use, and I've used my Battery Tender on my Shorai with no adverse effects. Oct 1, 2013
Reply to Gregor Good answer? Yes (0) No (0)
Michael J: A Battery Tender will work just fine. That said, I have not needed to use one over the past year. Oct 4, 2013
Reply to Michael Good answer? Yes (0) No (0)
Ian P: Depending on the model, yes. I have a cheap one from a local shop and it worked just fine. Oct 1, 2013
Reply to Ian Good answer? Yes (0) No (0)
Jeromy C: No, all lithium batteries need a special lithium battery charger. Shorai makes one. Oct 1, 2013
Reply to Jeromy Good answer? Yes (0) No (0)
carl o: No Oct 1, 2013
Reply to carl Good answer? Yes (0) No (0)
Tam B: I use my battery tender and it has exhibited no ill effects. Been doing this for the last 2 years. I remember reading on the Shorai website that any common battery charger works with the battery, although they recommend their charger specifically designed for their battery. If you think about it, the battery gets charged by a common charger (your bike's electrical system) all the time, so I'm pretty confident that you don't need a specialty charger to charge it. Oct 3, 2013
Reply to Tam Good answer? Yes (0) No (1)
A shopper asked: How are these batteries when it gets cold? Cold meaning down into the single digits? Also, how are they when the temps cross over into the triple digits? Those are the temps I see when riding my Harley, all year long. Dec 24, 2013
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David R: I put the one I purchased into a 2011 Triumph Speed Triple, so we have quite different bikes. The temp doesn't get into the single digits where I live in Texas but the battery has performed well when it has gotten in the 30's here. We do get into triple digits frequently in the summer and I did not have problems with it this past summer. I have not let the bike sit for several weeks without starting it so I don't know how well the battery will hold a charge over time without being used. I have a different brand lithium-iron battery in a Hayabusa that sat for 3 weeks while I was out of town and it started instantly when I returned. Dec 24, 2013
Reply to David Good answer? Yes (0) No (0)
Marc G: Got one in an 07 CBR 600RR. I live in Chicago and it's been pretty cold. The bike starts right up. She's been put to bed for the winter but without a tender hooked up, the battery is holding a charge well.
Hope this helps,
Marc G
Chicago, IL.
Dec 24, 2013
Reply to Marc Good answer? Yes (0) No (0)
Dan P: Not sure if I'm allowed to ask questions here. Just wondering what type you purchased? I have an 07 RR as well and I don't want to buy the wrong size. Was it the LFX14A4-BS12? Mar 7, 2014
damien g: This battery has been incredible for me. New England weather is all over the place and it always starts right up (on the second crank).

I don't think I've tried starting in the single digits, but from cold to hot, this battery is amazing.
Dec 24, 2013
Reply to damien Good answer? Yes (0) No (0)
Philip S: I have another Shorai installed in a Yamaha FJR for 2.5 years. I have had no problems at all but the lowest temps have been around 30 degrees and the highest temps in the high 90s.

Dec 26, 2013
Reply to Philip Good answer? Yes (0) No (0)
Son N asked: Hey Fellas.

I have 2003 yamaha r6, What is the best type or size of battery works best for my r6 during cold weather?
Dec 8, 2013
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Steven J: I would think that a Shorai would start your R6, but cold weather is relative. How cold are you talking. These batteries would not start my BMW 1200cc twin. I tried two of them last winter and they just stranded me when the temps dropped to below 30 degrees. They say you can warm them up and they will work, but I don't have any proof of that. I went back to lead acid batteries. Again how cold do your ride? Dec 8, 2013
Reply to Steven Good answer? Yes (1) No (0)
Son N: I live in Cupertino CA, it gets around 50 degrees and drop below 40 degrees at night. my acid battery keeps dying after a few start up. Dec 8, 2013
Kyle S: The largest lithium battery you can fit in the bike will work best during cold weather. Higher capacity will always give better cranking amps, especially in the cold. The one oddity with lithium in really cold weather is that you generally need to crank for a couple of seconds before they build enough internal heat to really get going. Dec 8, 2013
Reply to Kyle Good answer? Yes (0) No (0)
A s: Hi Son,

I looked up your R6 on the Shorai website and it recommended two batteries that work for your cycle.

LFX19A4-BS12 - Cold Cranking Amps:285
LFX14A4-BS12 - Cold Cranking Amps:210

If you are looking for the best winter Shorai then pick the LFX19A4-BS12.
Dec 9, 2013
Reply to A Good answer? Yes (0) No (0)
Derek H asked: Which battery or part number of this LFX Lithium battery would be appropriate for the 2003 Ducati 998 Biposto?

Sep 23, 2013
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ADEWUMI A: I'm not sure about the appropriate size and terminal positions but it'll be good to just do a physical measurement of your bike battery space or take the measurements of your OEM battery.
My experience with this expensive shorai battery wasn't so good as the battery ran flat completely within 2 weeks of non usage of my bike. i jumped my bike, it was charged immediately, rode for about an hour, parked my bike.
next day the battery wouldn't work. now i have to remove it.
my advice, think about a different brand.
Oct 9, 2013
Reply to ADEWUMI Good answer? Yes (0) No (0)
Derek H: The fitment for this battery should be the same as the 2002 model. Most catalogs don't even show the 2003 model even existed. Sep 23, 2013
Reply to Derek Good answer? Yes (0) No (0)
Charles P: I suggest calling Revzilla for fitment. Oct 1, 2013
Reply to Charles Good answer? Yes (0) No (0)
Derek H: Thanx, I actually already bought it and installed it. Great battery!! Oct 1, 2013
A shopper asked: I'm building a custom bike and I'd like to lie the battery horizontally behind the seat instead of upright. Can the Shorai batteries be safely installed on their sides instead of vertically? Apr 1, 2014
Answer this · Send to friends Good question? Yes (0) No (0)
Will B: It should not be an issue as the battery is completely sealed. I have this battery in an upright position in my Vespa. I also have a Ballistic EV02 battery that I have on its side in my MV Agusta. Both work great. Apr 2, 2014
Reply to Will Good answer? Yes (1) No (0)
Vishnu H: I can't answer this with absolute authority, and would recommend getting the final answer from the manufacturer. That being said, I don't see why you couldn't lay it on it's side as there is no fluid to leak- these are essentially lap top computer batteries for your motorcycle. Apr 5, 2014
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matthew L asked: I have a 2012 yamaha r6 which battery do I get? Feb 2, 2014
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Charles P: Check the website or call Revzilla or Shorei...they should be able to tell you exactly which model lithium battery works for your bike Feb 2, 2014
Reply to Charles Good answer? Yes (0) No (0)
Charles P: Check the Revzilla or Shorei website or call....they should be able tell the exact lithium battery for your bike. Feb 2, 2014
Reply to Charles Good answer? Yes (0) No (0)
A shopper asked: what fits 95 hd 883 ? Feb 13, 2014
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Darius S: LFX21L6-BS12 Feb 15, 2014
Reply to Darius Good answer? Yes (0) No (0)
Visham R asked: How do I find what model shorai replacement battery to use on a 2009 Suzuki Burgman 650 ? Is there a direct cross reference directory somewhere ? Jan 10, 2014
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Gregor L: When in doubt, check the manufacturer's website :)

There's a search field there so that you can determine which one fits your Burgman.
Jan 16, 2014
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Daniel N asked: I have a 2013 zx10r. Just wondering what size battery would fit into my bike? Dec 27, 2013
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Zach D: Basically Measure your battery box pick the one that closest to it without going over from their choose one with the appropriate terminals locations. I suggest trying to get the biggest one you can get fitted in there they will come with spacers. Dec 27, 2013
Reply to Zach Good answer? Yes (0) No (0)
A shopper asked: Shorai web site shows i need LFX19A4-BS12 but it does not show listed as an option on your site? Are they out of stock or do ya not carry it? Mar 20, 2014
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A shopper asked: Please bear with me. I currently run a odyssey PC-535 battery in an '04 Hellbound 'Tormentor'. I'm running an S&S 107" engine with a "standard" 32 amp single phase stator and rotor.
I am on my SIXTH battery in 3 years because the battery simply has to have a 40 amp THREE PHASE stator and rotor to properly recharge under normal riding conditions, i.e., low-rpm cruising for 1-1/2 hours, say, could cause a loss of charge in the battery. I was going to spend the $500 -or so- on the appropriate 3 phase stator/rotor set-up, but now I've turned my attention to lithium technology.
Here is my question: Provided my battery box can accommodate the 166mm fitment, (which btw looks easy enough) can I step all the way up to the badass LFX36A3-BS12 80W/80H, 540 CCA without burning up my charging system and wiring? Also, I have no electrical accessories to speak of- save an led display when the key is "on" that keeps the odometer reading(s) kept in it's memory.

J. Sims
Dec 24, 2013
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Product Style RevZilla SKU ID Manufacturer Product # Availability
LFX07L2-BS12 832260 LFX07L2-BS12 In Stock: Ships within 24 hours
LFX09A2-BS12 832261 LFX09A2-BS12 In Stock: Ships within 24 hours
LFX09L2-BS12 832262 LFX09L2-BS12 In Stock: Ships within 24 hours
LFX12A1-BS12 832263 LFX12A1-BS12 In Stock: Ships within 24 hours
LFX19A4-BS12 948342 LFX19A4-BS12 Available: Usually ships in 1-2 business days
LFX14A1-BS12 832264 LFX14A1-BS12 In Stock: Ships within 24 hours
LFX14A2-BS12 832265 LFX14A2-BS12 In Stock: Ships within 24 hours
LFX14A4-BS12 832266 LFX14A4-BS12 In Stock: Ships within 24 hours
LFX14A5-BS12 832267 LFX14A5-BS12 In Stock: Ships within 24 hours
LFX14L2-BS12 832268 LFX14L2-BS12 In Stock: Ships within 24 hours
LFX14L5-BS12 832269 LFX14L5-BS12 In Stock: Ships within 24 hours
LFX18A1-BS12 832270 LFX18A1-BS12 In Stock: Ships within 24 hours
LFX18A2-BS06 948339 LFX18A2-BS06 Available: Usually ships in 1-2 business days
LFX18L1-BS12 832272 LFX18L1-BS12 In Stock: Ships within 24 hours
LFX18L2-BS06 948340 LFX18L2-BS06 Available: Usually ships in 1-2 business days
LFX21A6-BS12 832271 LFX21A6-BS12 In Stock: Ships within 24 hours
LFX21L6-BS12 832257 LFX21L6-BS12 In Stock: Ships within 24 hours
LFX24A3-BS12 832258 LFX24A3-BS12 Available: Usually ships in 1-2 business days
LFX24L3-BS12 832259 LFX24L3-BS12 Available: Usually ships in 1-2 business days
LFX27A3-BS12 832273 LFX27A3-BS12 Available: Usually ships in 1-2 business days
LFX27L3-BS12 832277 LFX27L3-BS12 In Stock: Ships within 24 hours
LFX36A3-BS12 832275 LFX36A3-BS12 Available: Usually ships in 1-2 business days
LFX36L3-BS12 832276 LFX36L3-BS12 In Stock: Ships within 24 hours