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LFX09A2-BS12 Shorai 12v 9 AH PBEq LiFePO4 Power Sports Battery [+ -]

Free Ground Shipping to Lower 48 States *

Based off our own testing we have chosen to carry the UPGRADED version of this battery: LFX14A2-BS12

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Product InformationStore Part Number: LFX09A2-BS12


Replaces: YT7B-4, YTX7E, YT9A, YT9B-4

The Lithium Iron Phosphate battery is the ultimate in weight versus power technology. This battery weighs in at only 1.01 pounds and offers an incredible 102 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. For this reason has chosen to only carry the more powerful version of this battery, see the LFX14A2-BS12. It will be the exact same dimensions and terminal location as Shorai recommended battery, but with a bit more 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
  • SAFE–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 9 AH PbEq Lithium Iron Phosphate battery will perform the same as a 9 amp hour Lead-acid battery.

Shorai Batteries

LFX Part Number Explanation

LFXLithium Iron eXtreme-rate
09PbEq Capacity Rating (See FAQ for explanation)
LPolarity. "L" is negative on the left
2Case size. "2" is 4.45" L x 2.28" W x 3.50" H
BS–12Voltage, nominal

Works In

Vehicles that LFX09A2-BS12 works in

Aprilia 100cc Scarabeo ST(2004-2013)
Aprilia 125cc RS125(1992-2011)
Aprilia 125cc Tuareg, Wind1988
Benelli 125cc 125CSAll Years
Benelli 125cc Custom GuzziAll Years
Benelli 125cc GuzziAll Years
Benelli 125cc Jarno (c avv)All Years
Cagiva 125cc Freccia C9, C10R, C12R(1988-1990)
Cagiva 125cc Mito(1990-1997)
Cagiva 125cc N901997
Cagiva 125cc Roadster(1995-1997)
Cagiva 125cc Supercity(1991-1997)
Honda 250cc VTR250 Interceptor VTR(1988-1990)
Kawasaki 125cc BN125 Eliminator(2001-2010)
Polaris 50cc Predator, Outlaw2003
Shorai Small Case Batteries
Suzuki 125cc GN125E(1983-1996)
Suzuki 160cc LT160E QuadRunner1990
Suzuki 250cc GN2501983
Vespa (Piaggio) 150cc FLY150All Years
Vespa (Piaggio) 250cc BV250All Years
Vespa (Piaggio) 250cc MP3 250All Years
Vespa (Piaggio) 50cc FLY50All Years
Vespa (Piaggio) 50cc TyphoonAll Years
Vespa (Piaggio) Ape 50 FLAll Years
Vespa (Piaggio) Cosa 2 AllAll Years
Vespa (Piaggio) Cosa CLX 125, 150, 200 c/avv AllAll Years
Vespa (Piaggio) FreeAll Years
Vespa (Piaggio) Hexagon125/150All Years
Vespa (Piaggio) NRG 50All Years
Vespa (Piaggio) P125ETES, P125TSAll Years
Vespa (Piaggio) P200E (c/avv)All Years
Vespa (Piaggio) PK 50 FL/FL2 (c/av)All Years
Vespa (Piaggio) PK125FL, PK125SS, PK125XLAll Years
Vespa (Piaggio) PK50, PK50-CA, PK50N, PK50XL FL, FL2All Years
Vespa (Piaggio) PK80S-CAAll Years
Vespa (Piaggio) PX125All Years
Vespa (Piaggio) PX125-80E-ARCAll Years
Vespa (Piaggio) PX125T5All Years
Vespa (Piaggio) PX150EAll Years
Vespa (Piaggio) PX150E-ARCAll Years
Vespa (Piaggio) PX200-ARCAll Years
Vespa (Piaggio) PX200-GSAll Years
Vespa (Piaggio) Quartz, Sactto, Sfera 50All Years
Vespa (Piaggio) Sfera 80, Skipper 125/150All Years
Vespa (Piaggio) Zip ZipAll Years

Tech Specs

  • Dimensions (LxWxH): 4.45 x 2.28 x 3.50 in
  • Part Number: LFX09A2-BS12
  • Weight: 1.23 lb
  • Shipping Weight: 2.0 lb
  • DC Output Voltage: 12V
  • Max Inrush Current, Single Cycle: 9 Amps
  • Model: LFX09A2-BS12
  • Manufacturer: Shorai
  • Battery Polarity: +-
  • Warranty: 3 Year Manufacturer
  • Recommended Use: Standard Use
  • Amp/Hr: 9 PbEq
  • C.C.A.: 135
  • Manufacturer Part #: LFX09A2-BS12
  • Made In: China

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Reviews and Ratings

5.00 Average
5 Stars 2
4 Stars 0
3 Stars 0
2 Stars 0
1 Stars 0
Rated 5.00/5 Stars from 2 customer reviews.

Do you own the LFX09A2-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.

Very Impressed
Pros: The staff at BatteryStuff contacted me directly to confirm the order and we discussed the battery and my expected use. I was concerned this wouldn't turn over my CBR929RR but the battery was recommended so I gave it a shot. It arrived in just 2-3 days! I was very surprised at how light the box was and even more shocked at how light/small the actually battery was! No way this was going to turn over an open class sportbike BUT I WAS WRONG! Install was easy (using the supplied foam filler pads) and the bike fired right up. I've ridden it for the past few weeks and no trouble starting at all! I'm very impressed and these will be my "go-to" battery for my other bikes.
Cons: None
Thanks for great customer service ad a product that lives p to the hype!
Is this review helpful?
Written by on Dec 19, 2011. Ownership: Use regularly. Knowledge Level: Electricity doesn't scare me.. usually — (84 of 167 customers found this review helpful
Fantastic Performance
Pros: I purchased this battery in 2012 in anticipation of using it in my Sidewinder F500 Race Car. It sat for 10 months before it was installed. I checked the charge level expecting it to be dead. Much to my surprise it was still fully charged. As of June 2014 it is still working fantastic. Light, powerful and reliable. I am purchasing 2 more for the other cars. Exceeded my expectations by a mile.
Cons: There is no down side to this product.
Is this review helpful?
Written by on Jun 29, 2014. Ownership: Use regularly. Knowledge Level: Genius is my way of life — (81 of 162 customers found this review helpful

See More Reviews

Manuals & Tutorials

User Manual

Installation Guide

Lithium Battery Overview

Shorai Abuse Test

Lithium Iron FAQ

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