Shorai LFM18A1-BS12 Lithium-Iron Powersport Battery with BMS
Item #: LFM18A1-BS12   |    Backordered: Estimated Available July 26th, 2026

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Shorai LFM18A1-BS12 Lithium-Iron Powersport Battery with BMS

Item #: LFM18A1-BS12   |  Backordered: Estimated Available July 26th, 2026

Today's Price: $188.96
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Price: $188.96


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Product Specifications for Shorai LFM18A1-BS12 Lithium-Iron Powersport Battery with BMS

Specifications:
BM Part #: LFM18A1-BS12
Battery Polarity: Left Positive Terminals
Voltage: 13.2 Volt
Cold Cranking Amps: 270 CCA
Capacity: 6 Ah (18 Ah Equivalent)
Type: Lithium Iron
Length: 5.83"
Width: 2.60"
Height: 4.13"
Shipping Weight: 2.12Lbs
Warranty: 1 Year Free | 5 Year Prorated Factory Direct
Features:
  • Includes Shorai Sentry Battery Management System.
  • Ultra light - The cheapest way to shave pounds off your racing motorcycle
  • Twice to four times the service life of lead-acid batteries
  • Fitted replacement for your OEM battery
  • Military spec Carbon Fiber Composite Case
  • Faster cranking for better starts
  • Super-fast recharge rate
  • SAFE! No explosive gases during charge, no lead, no acid
  • Environmentally friendly
  • Bolt Size: 10mm bolt with 5mm threads.
  • Powersport applications only. Do not install in cars.

Product Description

Free Standard Shipping!

Order today and get free standard shipping on your Shorai LFM18A1-BS12 Lithium-Iron Powersport Battery with BMS. This offer is valid for the contiguous 48 states.

Why Choose the Shorai LFM18A1-BS12 Lithium-Iron Battery?

Shorai's Lithium Iron batteries are the ultimate fusion of lightweight and power technologies. The LFM18A1-BS12 battery weighs in at 2.12 pounds and offers 270 CCA. These batteries will require no change to your charging systems and are a drop-in replacement for your original battery (Included shims may be required for installation).

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Frequently Bought Together:
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Shorai LFM18A1-BS12 Lithium-Iron Powersport Battery with BMS
Shorai LFM18A1-BS12 Lithium-Iron Powersport Battery with BMS
$188.96
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Total for Both Items: $278.91

Warranty Terms for the Shorai LFM18A1-BS12

Shorai offers a Limited, Pro-Rated Five-Year Warranty for Shorai batteries, for defects in material and/or workmanship, pertaining to sales originating and delivered within the United States.

The warranty is divided into three periods from date of purchase within the USA, as follows:

Month
1~13
14~18
19~60
Discount from MSRP
100%
65%
50%

note: warranty updated June 1 2024 to increase months 13~18 to 65% discount from 50%

Please do NOT return any product to Shorai without an RMA# or before Shorai has contacted you. In many cases issues can be solved prior to return.


Frequently Asked Questions

What makes Shorai batteries different?

A: They contain Shorai-proprietary eXtreme-Rate Lithium Iron prismatic cells (chemistry LiFEPO4). They contain no poisonous lead, no dangerous acid, and do not create explosive gases during charge, as traditional Lead-Acid batteries do. Compared to traditional batteries, Shorai lithium batteries are extremely light, have a much lower self-discharge rate, do not sulfate, and are environmentally friendly.

Can I use Lead-Acid battery chargers or charger/tenders?

A: Yes. However, you may not use a charger/tender if it has an automatic desulfation mode, which cannot be turned off. We have confirmed with Deltran, makers of the Battery Tender brand, that their products do not have a desulfation mode and are therefore okay for use with Shorai batteries.

Can the Shorai LFM18A1-BS12 be mounted in any position?

A: Yes. There are no liquids in these batteries.

What's the difference between the "equivalent" and "Actual" Ah capacity?

A: The manufacturer includes the "equivalent" (PbEq, "lead equivalent") rating to show a more apples-to-apples comparison between the lithium chemistry and the lead-acid battery that you're likely replacing.

How does the Shorai LFM18A1-BS12 perform in cold weather?

A: This battery performs well in cold temperatures, but it may need a quick warm-up for best results. Turning on your headlights or another accessory for 30 seconds to a few minutes, depending on how cold it is, helps improve the starting power. Ensuring that the battery is fully charged will also help with first-start performance in cold weather.

Cross Reference & Compatibility

The Shorai LFM18A1-BS12 Lithium-Iron Powersport Battery with BMS has been cross-referenced to be compatible with or replace these OEM part numbers and models:
GT12B-4
GT9B-4
LFM18A1-BS12
LFX18A1-BS12
YT12A-BS
YT12B-BS
YTX12-BS
YTZ12S
YTZ14S

Customer Reviews

19 Reviews | 4.9 out of 5
5 stars (18)
4 stars (1)
3 stars (0)
2 stars (0)
1 star (0)
100%
Would recommend this product.
What our Customers are saying
Shorai LFM18A1-BS12 Lithium-Iron Powersport Battery with BMS
October 8, 2025
by on October 8, 2025

Needed a new battery and figure would give this one a try. Installed on my 2017 hayabusa and so far no issues with it.

Joe
Would recommend to a friend?
Yes
Fit Perfect
August 13, 2025
by on August 13, 2025

Fit perfectly

Bharath
DE,USA
Would recommend to a friend?
Yes
Great Battery -
July 6, 2025
by on July 6, 2025

Great fit and plenty of power to start my 2007 Ducati Monster S2R1000. I'm hopeful that the battery will have a long service life, given that it is solid state.

Silver Duck
Indiana
Would recommend to a friend?
Yes
powerful
October 15, 2024
by on October 15, 2024

I've used Shorai batteries for some. time. I have a 1960 H.D. panhead and many years ago made my own oil tank.
I a have a 6 inch width and this battery has plenty of room.
Also carries quite a punch. (270 CCA) I designed a kick assist starter and easily starts the bike.
Al

Panhead
Would recommend to a friend?
Yes
Shorai Motorcycle Battery
March 8, 2024
by on March 8, 2024

The battery was easy to order, a fair price, adequate shipping time and packaging was excellent. It was a tight fit in my R6 but, it did fit well. After 3 weeks it is still operating correctly.

Daniel Qualtire
Colorado
Would recommend to a friend?
Yes
The 'A' answer you were looking for.
November 16, 2021
by on November 16, 2021

Fabulous batteries. This is my 2nd & I'm pretty sure the 1st died, after many years, from neglect. I've a '00 VFR & AGM batteries lasted months before cooking dead in the Phoenix heat in a very hot compartment w/ a high charge rate. The Shorai Li-Fe battery lasted for Years (like maybe 7-ish) before giving up & likely from not keeping it charged for the last couple when I'd quite riding (lots to none). The new one is like the 1st; Fabulous product (let me say again FABULOUS product) presented w/ perfect detail for a great install (down to the foam pads on the nuts to keep them in place while connecting the cables) w/ great support & thoughtful implementation at every turn. You're a Class Act Shorai!
Yup, you're going to pay for that experience - Twice the cost for at least 7 times the battery (factor in the way better performance on top of longevity & that doubles).

Greg
Would recommend to a friend?
Yes
Another Great Shorai Battery
November 2, 2021
by on November 2, 2021

I've used a bunch of these in motorcycles and power equipment and have never bee disappointed.

Sawdust Slim
WA
Would recommend to a friend?
Yes