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LFX18L1-BS12 Shorai 12v 18 AH PBEq LiFePO4 Power Sports Battery [- +]

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In order to ship IATA imposed new Shipping Regulations regarding Lithium Batteries. Lithium Batteries being shipped are only charged to 30% of capacity. When you receive this battery it may need to be charged. This is the battery charger we recommend for this battery: Shorai 6v/12v 2 Amp LFX Series Lithium Battery Charger Sho-BMS01

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Product InformationStore Part Number: LFX18L1-BS12


Replaces: YTX16BL, YB16AL-A2, YTX20HL, YT51913-22

The Lithium Iron Phosphate battery is the ultimate in weight versus power technology. This battery weighs in at only 2.12 pounds and offers an incredible 270 C.C.A. This is a drop in replacement for your Lead-acid battery, and will require no change to your stock charging system.

Shorai LFX batteries contain Shorai-proprietary eXtreme-Rate Lithium Iron prismatic cells (chemistry LiFePO4). They contain no poisonous lead, no acid, and do not create gasses during charge, as traditional Lead-Acid batteries do. Compared to lead-acid, Lithium Iron Phosphate batteries are also extremely light, have much lower self-discharge, do not sulfate, and are environmentally friendly.

When it comes to Powersports applications and lithium batteries, recommends that you use the best, most powerful version that will properly fit your application. Shorai may list several battery sizes in their application chart that will fit your bike, but in our opinion the small gains in weight are typically offset by the superior starting power offered in the upgraded versions. Should you not require the most powerful version, see the LFX14L2-BS12 for the less potent lithium alternative for this battery. It will be the exact same dimensions and terminal location as our recommended battery, but with a bit less capacity.

Lead acid batteries have long been a target with riders who want to take weight off of their motorcycle. With our Lithium Iron Phosphate batteries, it is now possible to do away with the heavier lead acid battery, while maintaining reliable starting power. These are true drop in replacement batteries that will require no charging system modifications, and only weigh a fraction of the OEM battery.

*BatteryStuff understands the importance of getting a replacement battery right away and usually ships all batteries the same day as ordered if received before 1:30pm (Pacific).


  • No more dead batteries. Holds charge for one year without maintenance
  • Ultra light. One fifth the weight of lead-acid batteries on average
  • Twice to four times the service life of lead-acid batteries
  • Drop-in replacement for your OEM battery
  • Military spec Carbon Fiber Composite Case
  • Faster cranking for better starts
  • Super-fast recharge rate
  • No explosive gasses during charge, no lead, no acid
  • Environmentally friendly
  • Japanese engineering and components


We recommend using these batteries in temperatures above 0 degrees Celsius. This battery may require spacers to make it work in your application. Included with this battery are foam spacers that will aid in fitting this battery. ** PbEq equals Lead-Acid Equivalent. This means that a 12 AH PbEq Lithium Iron Phosphate battery will perform the same as a 12 amp hour Lead-acid battery.

Recommended Charger

Shorai Charger Sho-BMS01
The Sho-BMS01 is a Charge/Store dedicated battery managment system that is designed specifically for Shorai batteries.

Works In

Vehicles that LFX18L1-BS12 works in

Bombardier (BRP), Can Am 330cc Outlander 330(2004-2005)
Bombardier (BRP), Can Am 400cc Outlander 400(2003-2004)
Bombardier (BRP), Can Am 650cc DS650(2000-2006)
Buell 1125cc 1125R, 1125CR(2008-2010)
Can-Am 600cc Ryker (ACE)(2019-2020)
Can-Am 900cc Ryker (ACE)(2019-2020)
Ducati 748 Monoposto, Strada Biposto, S, SP, SPS(1997-2000)
Ducati 750cc Monster(1997-2000)
Ducati 750cc SS(1990-2000)
Ducati 750cc Sport(1989-1990)
Ducati 851cc 851 Superbike(1990-1991)
Ducati 851cc S Superbike(1991-1992)
Ducati 888cc SP, SP II, SP IV, SP V(1990-1995)
Ducati 900cc Monster(1994-2000)
Ducati 900cc SL(1992-1996)
Ducati 900cc SS(1989-2000)
Ducati 900cc Supersport FE(1997-1998)
Ducati 916cc Biposto, Senna, Strada(1994-1998)
Ducati 916cc I.E, SP, SPS(1994-1998)
Ducati 916cc ST4(1999-2000)
Ducati 944cc Sports Touring 2 (ST2)(1997-2000)
Ducati 996cc Monoposto, Biposto, S, SPS(1999-2000)
Moto Guzzi 1000cc V10 Centauro Sport, GT(1999-2000)
Moto Guzzi 1100cc California (CA Only)(2003-2005)
Moto Guzzi 1100cc Quota 1100 ES(1999-2002)
Moto Guzzi 1100cc Sport 1100i(1997-1999)
Moto Guzzi 1100cc V11 Le Mans, Sport(1999-2005)
Polaris 500cc Sportsman EFI2007
Shorai Medium Case Batteries
Yamaha 1200cc VMX12 V-Max(1985-2007)
Yamaha 700cc XV700 Virago(1984-1987)
Yamaha 750cc XV750 Virago (all)(1981-1997)

Tech Specs

  • Dimensions (LxWxH): 5.83 x 2.60 x 4.13 in
  • Part Number: LFX18L1-BS12
  • Weight: 2.12 lb
  • Shipping Weight: 3.0 lb
  • DC Output Voltage: 12V
  • Model: LFX18L1-BS12
  • Manufacturer: Shorai
  • Battery Polarity: -+
  • Warranty: 3 Year Manufacturer
  • Recommended Use: Heavy Duty Powersports
  • Amp/Hr: 18 PbEq
  • C.C.A.: 270
  • Manufacturer Part #: LFX18L1-BS12
  • UPC: 4897034420135
  • Made In: China

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Reviews and Ratings

4.29 Average
5 Stars 5
4 Stars 1
3 Stars 0
2 Stars 0
1 Stars 1
Rated 4.29/5 Stars from 7 customer reviews.

Do you own the LFX18L1-BS12? Please, tell us what you think about it. It helps us provide you with better products. Please note that it may take up to 72 hours for your review to appear.

Shorai Lithium 18 AH 12 Volt Battery
Pros: Saves 10 lbs, is smaller and more powerful than AGM batteries I've used in the past. So far I am very happy.
Cons: Price, I would prefer to get it for free!!!!
If the battery lasts as advertised, I will buy again.
Is this review helpful?
Written by on May 23, 2012. Ownership: Just Bought. Knowledge Level: Genius is my way of life — (85 of 165 customers found this review helpful
Awesome Battery
Pros: Battery is SO much lighter, and is smaller, and it produces much more in cranking amps. My VMAX starts right up now. I love it! I highly recommend going to Li for better performance.
Cons: Had to put foam cushioning padding all around the battery because it is so much smaller, but it is provided with the battery and is not that big of a deal.
I have had problems keeping my lead/acid battery charged with enough to start my bike. I have often had to find a hill or get a push to compression start. With this battery I don't have to do that anymore. I am very happy about that!
Is this review helpful?
Written by on Jun 06, 2014. Ownership: Use regularly. Knowledge Level: AC/DC is more than a band — (88 of 166 customers found this review helpful
Time will tell
Pros: Installing this new battery was relatively easy, though we put together a wood 'U' shape spacer lined inside and outside with the foam to snug up the battery. It fit good. This battery is replacing the lead acid batteries that normally go nine years, so in ten years we should know if this is a better battery. The bike was used only once and this battery had no problem cranking it up. Thanks for allowing us an opportunity to test something new.
Cons: We miss having to deal with the acid. Other than the cost we really have nothing negative yet. Maybe with a larger volume of sales the price might be more competitive.
Is this review helpful?
Written by on May 20, 2012. Ownership: Just Bought. Knowledge Level: I know what an outlet is — (85 of 163 customers found this review helpful
As advertised
Pros: The battery came as advertised. I had no difficulty in installing. Size and weight are amazing. I haven't had a situation yet where I have tested the longevity or starting power but when I got it installed, the motorcycle started right up.
Cons: Using the foam pads to build a box around the smaller size battery was a bit of a challenge but worked as promised.
Is this review helpful?
Written by on Jan 22, 2012. Ownership: Just Bought. Knowledge Level: I know what an outlet is — (93 of 170 customers found this review helpful
Shorai Battery
Pros: I received the battery from BatteryStuff a couple of days after ordering it. It was incredibly small and light. The included adhesive backed foam was a nice touch and made it very easy to install the battery. I did say it was incredibly small, right? It fit easily and installation was a breeze. Seems to have tons of starting power. If it lasts as long as it is supposed to I will be very happy.
Cons: none so far
Is this review helpful?
Written by on Feb 03, 2014. Ownership: Just Bought. Knowledge Level: AC/DC is more than a band — (87 of 162 customers found this review helpful
LFX18L1-BS12 Shorai 12v 18 AH
Pros: This is a great battery..........lots of starting power and never runs low on power.Super light weight.
Cons: Nothing
Is this review helpful?
Written by on Apr 25, 2013. Ownership: Just Bought. Knowledge Level: Electricity doesn't scare me.. usually — (86 of 161 customers found this review helpful
Died after second day
Pros: This is a great backup battery it is light weight and easy to carry.
Cons: I used it for two days with a one hour drive each way on my bike with my jacket and gloves warmer connected, the second day it was dead so I removed the battery and I went back to the stock battery with no problems.
It will may work good to carry camping and charge my cell phone.

***Note from***
These batteries are starting Power Sport Batteries only, and are not recommend for deep cycle applications. Deep cycling the battery can damage the lithium, as there are no low voltage cutoffs to prevent the battery from being excessively discharged. The PBEq rating is an equivalent of what they are meant to replace in a starting application, however their actual AH rating is only 1/3 of that rating.
Is this review helpful?
Written by on Mar 29, 2017. Ownership: I've thought about naming it.... Knowledge Level: Genius is my way of life — (1 of 1 customers found this review helpful

See More Reviews

Manuals & Tutorials

Installation Guide

User Manual

Lithium Battery Overview

Shorai Abuse Test

Lithium Iron FAQ

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