Free Economy ShippingProduct Specifications for Shorai LFM14A2-BS12 Lithium-Iron Powersport Battery with BMS
| BM Part #: | LFM14A2-BS12 |
|---|---|
| Battery Polarity: |
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| Voltage: | 13.2 Volt |
| Cold Cranking Amps: | 210 CCA |
| Capacity: | 4 Ah |
| Energy Capacity: | 52.8 Wh |
| Type: | Lithium Iron |
| Length: | 4.45" |
| Width: | 2.28" |
| Height: | 3.50" |
| Shipping Weight: | 1.61Lbs |
| Warranty: | 1 Year Free | 5 Year Prorated Factory Direct |
- Advanced Integrated BMS: The built-in Shorai Sentry system prevents excessive discharge by safely disconnecting terminals if voltage drops too low.
- Ultra-Lightweight Design: Weighing only 1.52 pounds, it sheds significant weight from your machine to instantly improve agility and performance.
- Extreme Cranking Power: Delivers 210 CCA and a 14 Ah lead-equivalent rating for faster, more dependable engine starts every time.
- Low Self-Discharge Rate: Holds a charge for up to one full year without maintenance, eliminating the need for constant winter charging.
- Eco-Friendly Prismatic Cells: Contains zero toxic lead, dangerous acid, or explosive gasses for a safer, cleaner powersports experience.
- Customizable Foam Shims: Includes high-density adhesive foam sheets that easily trim down to guarantee a snug, vibration-resistant factory fit.
Product Description
Are you tired of heavy lead-acid batteries that drain constantly during the off-season and drag down your ride’s performance? It is time to upgrade your experience with the Shorai LFM14A2-BS12 Lithium-Iron Battery. Engineered to replace old, heavy legacy batteries like the discontinued LFX14A2-BS12, this advanced lithium-iron phosphate (LiFePO4) powerhouse delivers massive starting punch without the unnecessary weight. Whether you ride a motorcycle, ATV, scooter, or personal watercraft, dropping this ultra-light battery into your machine is the easiest way to instantly shave off pounds and guarantee crisp, reliable ignition every time you press the starter.
What sets the Shorai LFM14A2-BS12 apart from older lithium options is the smart technology built right inside. Equipped with the integrated Shorai Sentry Battery Management System (BMS), this battery continuously monitors cell health to prevent accidental over-discharging. If your voltage dips too low during storage, the internal BMS safely disconnects the terminals to protect your investment from permanent damage. This means you get a safer, more resilient powersport battery that completely eliminates the worries of traditional lead-acid maintenance.
Unmatched Performance and Prismatic Cell Design
Unlike standard batteries that use cylindrical cells, Shorai utilizes proprietary eXtreme-Rate prismatic cells. This unique design packs maximum power into an incredibly compact footprint. It delivers 210 Cold Cranking Amps (CCA) and boasts a 14 Ah lead-acid equivalent rating, ensuring your engine turns over quickly even after weeks of sitting. It also recharges at a lightning-fast rate and holds its charge for up to a full year without needing a maintenance charger.
Drop-In Fitment for Hassle-Free Upgrades
Worried about making it fit? While this high-tech battery packs the punch of a standard 14 Ah battery, its physical size is dramatically smaller. To ensure an effortless, secure setup, every package includes a set of high-density, adhesive-backed foam shims. You can easily trim these sheets to fill up any extra space in your factory battery box, giving your new battery extra insulation against heavy vibration and harsh trail conditions. Terminal screws and a complete set of spares are also included right in the box.
Say goodbye to the headaches of acid leaks, terminal sulfation, and sluggish starts. Step up to modern Japanese engineering and experience the ultimate fusion of weight savings and raw cranking performance. Order your Shorai LFM14A2-BS12 Lithium-Iron Powersport Battery today and get back to riding with total confidence!
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
Is the LFM14A2-BS12 a direct replacement for my older Shorai battery?
A: Yes, the LFM14A2-BS12 is the official, updated replacement for the discontinued Shorai LFX14A2-BS12 model. It shares the exact same physical case dimensions (4.45 in. L x 2.28 in. W x 3.50 in. H) and polarity configuration, but features updated internal engineering and an integrated Battery Management System for better safety.
Do I need to modify my vehicle's charging system to use this lithium battery?
A: No modifications are required. This battery is designed to work seamlessly with your stock powersport charging system. However, your vehicle must have a healthy charging system output of at least 13.1 Volts at idle, and it must not exceed 15.2 Volts at maximum output.
Can I use a standard lead-acid battery charger on this battery?
A: You can use a standard charger or a dedicated lithium charger, but you must ensure the charger does NOT have an automatic "desulfation mode" or "recovery mode" that cannot be turned off. High-voltage desulfation pulses will damage lithium-iron cells. For the best performance and cell balancing, we recommend using a dedicated Shorai BMS charger or a certified lithium-specific smart charger.
How does this battery perform in cold winter weather?
A: Lithium-iron batteries naturally experience increased internal resistance when temperatures drop below 20 degrees Fahrenheit. If your vehicle is stubborn on the first crank in cold weather, leave your headlights or a heated accessory turned on for 30 seconds to 4 minutes before starting. This draws current, warming the internal cells and significantly boosting cranking power for a successful start.
What does the "14 Ah PbEq" capacity rating mean?
A: PbEq stands for "Lead-Acid Equivalent." Because lithium cells deliver power much more efficiently than lead-acid, this battery's actual rating is 4.0 Ah, but it provides the exact same starting power and engine-cranking capacity as a traditional 14 Amp Hour lead-acid battery while saving massive amounts of physical space and weight.
Cross Reference & Compatibility
Customer Reviews
I have it installed in my Ducati SFV4S and was surprised to see how light and small this battery was compared to the old one. Would definitely recommend buying it for your bike.
Shipping was fast, battery arrived in great packaging.
Great lightweight battery
This is the third Shorai Lithium-Iron battery I have purchased for motorcycles. They are fantastic - hold a charge for a very long time, and are super light weight. The only issue is cold weather cranking - it takes a while for the battery to produce full output. But I am using them on bikes that are rarely started in extreme cold so it's not a problem.
The battry spins my DRZ400 ovr easly every time.
Battery does not self discharge
I bought the smallest LiFe battery for my application because I was looking for size reduction as well as weight savings. The LFX14A2-BS12 works well for my VFR800 and spun the engine over quickly in the garage. On a cool morning on the road it turned the engine over slower but it started easily. I've read that some people turn the key on for 30 secs and let the battery warm up a little before
