Free Economy ShippingProduct Specifications for Shorai LFM24L3-BS12 Lithium-Iron Powersport Battery with BMS
| BM Part #: | LFM24L3-BS12 |
|---|---|
| Battery Polarity: |
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| Voltage: | 13.2 Volt |
| Cold Cranking Amps: | 360 CCA |
| Capacity: | 8 Ah (24 Ah Equivalent) |
| Type: | Lithium Iron |
| Length: | 6.55" |
| Width: | 3.39" |
| Height: | 6.10" |
| Shipping Weight: | 3.97Lbs |
| Warranty: | 1 Year Free | 5 Year Prorated Factory Direct |
- 360 Cold Cranking Amps: Delivers powerful, reliable starts even when temperatures drop.
- Ultralight at 3.97 lbs: Shaves significant weight compared to lead-acid without sacrificing cranking power.
- Built-In BMS Protection: Automatically guards against over-discharge, extending the life of your investment.
- LiFePO4 Chemistry: No lead, acid, or explosive gases — safer to handle and store.
- Super-Fast Recharge: Charges significantly faster than lead-acid so you're back on the road sooner.
- Drop-In Fitment: Fits popular OEM battery footprints with no charging system modifications required.
Product Description
Ditch the Dead Weight. Keep the Power.
Are you tired of carrying around a heavy, maintenance-prone lead-acid battery on a machine built for performance? The Shorai LFM24L3-BS12 is a lithium iron (LiFePO4) powersport battery that puts 360 cold cranking amps in a package weighing just 3.97 pounds. That's a fraction of what a comparable lead-acid battery weighs — and every pound matters when you're on two wheels.
This is a direct drop-in replacement for OEM battery sizes including the YTX20L-BS, YB18L-A, YB16L-B, and YB16CL-B. It's a popular upgrade for riders on bikes like the Honda Gold Wing GL1800, the Yamaha Road Star XV1600/1700, the Yamaha V-Star 1300 (XVS1300), and the Kawasaki Jet Ski Ultra — anywhere the original battery's bulk and upkeep has become more hassle than it's worth.
Built to Last Longer, Start Faster, and Worry Less
LiFePO4 chemistry doesn't sulfate. It doesn't need to be topped off. It doesn't leak. The LFM24L3-BS12 can sit through an entire off-season and come back with a usable charge, while a lead-acid battery in the same situation might be done for good.
Shorai's internal Battery Management System (BMS) adds another layer of protection by guarding against over-discharge — one of the most common ways lithium batteries get permanently damaged. The result is a battery that works harder when you need it and protects itself when you don't.
- Low self-discharge rate keeps the battery ready through long storage periods
- Military-spec carbon fiber composite case handles vibration without complaint
- No liquids inside — can be mounted in any orientation
- Two to four times the service life of a comparable lead-acid battery
Cold-Weather Starting Tips
Lithium batteries perform differently in the cold than lead-acid batteries do. Down to about 20°F, most riders find they can start normally on the first crank. Below that, it helps to run your headlights or other accessories for 30 seconds to a few minutes before cranking. This warms the cells and delivers a much stronger first start — and if the engine doesn't catch on the first try, the second attempt will be noticeably stronger.
One Step Before Your First Ride
Your Shorai LFM24L3-BS12 ships at about 30% charge to comply with ground and air shipping regulations. Fully charge the battery before installing it — this is the most common step riders skip, and the most common reason a new Shorai appears not to work out of the box.
For charging, we recommend the Battery Tender 6/12V 4A Charger (022-0209-DL-WH). It's fully compatible with lithium batteries and does not include an automatic desulfation mode — which is important, because chargers with desulfation modes that can't be disabled should never be used with a Shorai battery.
Add the Shorai LFM24L3-BS12 to your cart today and get free standard shipping anywhere in the contiguous 48 states.
What's the difference between the "equivalent" and "Actual" amp hour capacity?
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.
The lead-acid capacity rating itself is based on a complete discharge at a low discharge rate. Under actual cranking conditions they will deliver considerably less than spec capacity. And because lead-acid batteries begin sulfating when only a small percentage of the capacity has been used, and their internal resistance rises as they are discharged, the actual capacity which can be used may be as little as 20% of the mfg. rating. Discharge in excess will not only damage the lead-acid battery, it may not allow proper starting as voltage sags.
For example, the Shorai LFM18 12V series have 6Ah cells internally. But, the cells are capable of 80% discharge without damage while still retaining more cranking power. As such, the usable capacity (or "reserve capacity") of an LFM18 12V battery is very close to 18Ah-rated lead acid batteries, while also providing superior cranking and huge weight reductions.
Cold Weather Performance Expectations
Down to about 20° Fahrenheit (-7°C) 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 40°F/5°C, 30 seconds will help wake the battery and increase cranking performance. If at 0°F/-17°C, 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.
Warranty Terms
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:
All warranty claims for products purchased and delivered within the United States are handled directly by Shorai Service LLC. only. Battery Mart can only provide information for getting in contact with Shorai for warranty claims. See the Warranty Form for online submission of warranty claims, and to get your Return Merchandise Authorization (RMA#) assignment. Replacement batteries are to be issued by Shorai and sent directly to the customer. No dealership is authorized to issue a replacement battery without prior written authorization from Shorai.
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.
Conditions which will void warranty
- Opening the battery case will void the warranty.
- Applications Not listed on the Shorai website product finder such as: Aircraft, Automotive, Go Karts, Motive power (Shorai as main power source, not engine starter).
- Over-voltage charging, or other error by charger or user setting of charger.
- Use in excess of cranking (CCA) specifications (incorrect use in custom vehicle, etc).
- Short circuit of main terminals or BMS port.
- Short circuit caused by improper installation.
- Improper connections to the 5-pin BMS port.
- Over-discharge (i.e. resting voltage allowed to fall below 12.8V/6.4V for Lfx 12V/6V types).
- Physical Damage to the battery occurring after purchase (impact, etc).
For custom vehicles if you have a stock motor pulled from another vehicle, then you can use our battery finder to select the battery that the motor came from as long as the starter gearing is the same. If you have any other questions, please give us a call and we will assist you.
Frequently Asked Questions
What's the difference between the LFM24L3-BS12 and the old LFX24L3-BS12?
A: These are the same battery. In mid-2022, Shorai began equipping their batteries with an internal Battery Management System (BMS) for over-discharge protection. At the time, Shorai didn't create a new part number to reflect the change, which caused confusion for customers trying to identify which version they had. In October 2024, Shorai officially retired the LFX prefix and introduced the LFM designation to clearly identify batteries that include the internal BMS. The cells, dimensions, and electrical specs are completely identical — only the part number and label changed. If you were previously ordering the LFX24L3-BS12, the LFM24L3-BS12 is your replacement.
Can I use my existing charger or battery tender with this battery?
A: Most lead-acid chargers and tenders can be used for regular charging, but there's an important caveat: you cannot use a charger that has an automatic desulfation, repair, recondition, or recovery mode that cannot be disabled. Using one of these chargers can permanently damage the battery. If you're unsure about your charger, we recommend our Battery Tender 6/12V 4A Charger (022-0209-DL-WH), which is confirmed lithium-compatible and does not include a desulfation mode. Also note: do not leave a lead-acid charger connected for long-term storage, as most won't maintain the correct voltage range for a lithium battery. The Battery Tender above handles both routine charging and long-term storage maintenance safely.
Do I need to do anything before installing this battery for the first time?
A: Yes — charge it fully before your first ride. The LFM24L3-BS12 ships at approximately 30% state of charge to meet shipping regulations, so it needs to be brought to a full charge before installation. We recommend the Battery Tender 6/12V 4A Charger (022-0209-DL-WH) — it's lithium-compatible and won't expose the battery to harmful desulfation modes. Outside of that, installation is straightforward: the LFM is a true drop-in replacement, and the box includes foam shims if your battery tray runs slightly larger than the Shorai's footprint.
How does this battery handle cold weather?
A: The LFM24L3-BS12 performs well in the cold, but lithium batteries do behave a bit differently than lead-acid in low temperatures. Down to about 20°F, most riders can start on the first crank without any extra steps. Below that, Shorai recommends running your headlight or accessories for 30 seconds to a few minutes before cranking — this lets a small current flow through the cells, warming them up and improving starting performance significantly. Making sure the battery is fully charged before cold-weather storage also helps with first-start reliability in spring.
