Product Specifications for Shorai LFM14L2-BS12 Lithium-Iron Powersport Battery with BMS
| BM Part #: | LFM14L2-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 |
- Ultra-Lightweight at 1.61 lbs: Dramatically lighter than lead-acid equivalents, freeing up weight and space on your powersport build.
- 210 Cold Cranking Amps: Delivers strong, reliable starting power across a wide range of motorcycles, ATVs, and powersport vehicles.
- Integrated Sentry BMS: Built-in Battery Management System automatically prevents deep discharge, protecting the battery from one of the most common failure points.
- LiFePO4 Chemistry: Contains no lead, no acid, and produces no explosive gases during charging, making it safer and far more environmentally friendly than traditional batteries.
- Drop-In Fitment with Shims Included: Foam shims, terminal screws, and spares are included in the box for a clean, secure installation in most battery trays.
- 5-Year Prorated Warranty: Backed by Shorai's 1-year full warranty and 5-year prorated factory-direct coverage, purchased directly through Battery Mart.
Product Description
Experience Compact Power with the Shorai LFM14L2-BS12
The Shorai LFM14L2-BS12 is the current-generation replacement for the popular LFX14L2-BS12, now upgraded with an integrated Battery Management System. It weighs just 1.61 lbs and delivers 210 cold cranking amps in a package the size of a paperback book. Despite its compact size, the LFM14L2-BS12 delivers serious starting power for powersports applications, including:
Always confirm compatibility with your vehicle’s specific year, make, and model before ordering.
Shorai LFM14L2-BS12 vs. Lead-Acid: Why Lead-Acid Can't Compete
Lead-acid batteries degrade whether you use them or not. Sulfation, slow self-discharge, and sensitivity to deep discharge are all built into the chemistry. Shorai's LiFePO4 (Lithium Iron Phosphate) cells work differently:
- No sulfation during storage
- Extremely low self-discharge rate
- No lead, no acid, and no explosive gases during charging
- 2–4x the service life of a comparable lead-acid battery
The result is a battery that's ready to start when you are, even if "when you are" turns out to be six months from now.
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 the 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.
Frequently Asked Questions
Is the LFM14L2-BS12 the same as the LFX14L2-BS12?
A: Yes, the LFM14L2-BS12 is Shorai's direct replacement for the older LFX14L2-BS12. The LFM series carries the same fitment and capacity but adds the integrated Sentry Battery Management System. If you've been searching for the LFX14L2-BS12, this is the current version you want.
Will this battery fit my motorcycle or powersport vehicle?
A: The LFM14L2-BS12 uses "L" polarity (negative terminal on the left) in a Case Type 2 footprint (4.45" x 2.28" x 3.50"). It replaces a wide range of OEM batteries including the YTX7L-BS, YB10L-B, YB10L-B2, YB9L-B, YTZ7S, and YTZ8V. Use Shorai's online fitment tool or Battery Mart's vehicle lookup to confirm compatibility for your specific year, make, and model before ordering.
Can I charge the Shorai LFM14L2-BS12 with my existing lead-acid battery charger?
A: Most standard chargers are compatible, but there's one important exception: do not use any charger with an automatic desulfation mode that cannot be turned off. That mode can damage a lithium battery. Your bike's stock charging system works fine as long as it outputs at least 13.1V at idle and doesn't exceed 15.2V at full output. For storage charging, a lithium-compatible smart charger is the safest option.
Does the LFM14L2-BS12 battery arrive ready to use?
A: No. Lithium batteries are required by shipping regulations to arrive at approximately 30% charge. You'll need to charge the battery fully before first use. A lithium-compatible charger is recommended for that initial charge
How does this battery perform in cold weather?
A: Lithium batteries can take slightly longer to reach peak output in very cold temperatures compared to lead-acid. Most riders in moderate climates report no issues. If you're regularly starting in freezing or sub-freezing conditions, it's worth knowing that a brief warm-up period may help, and a lithium-compatible battery tender during the off-season is a good practice.
What is the difference between equivalent and actual amp-hour capacity?
A: The equivalent, or PbEq, rating helps compare a lithium battery to the lead-acid battery it replaces. Although the battery’s actual amp-hour capacity is lower, lithium batteries can use more of their stored energy without damage, giving them usable capacity and starting performance comparable to a higher-rated lead-acid battery.
Cross Reference & Compatibility
Customer Reviews
I really like the size of the battery. It's really light and compact and it comes included with foam pieces that you could stick into the battery box that allows the battery to be secured in place.
Battery is lite weight, came with clear operational instructions and plenty of various fitment pads to keep it from shifting in the Battery box. So far the unit has great output for turning over the old Rotax
Just as a test when my GMC V6 4.3 liter 800 amp battery died, I wanted to see what this tiny battery would do.
I didn't even disconnect the old dead battery......just jumper cables. BOOOM !! The V6 engine started. No cranking.....just BOOM !
Awesome battery. Lightweight and great fix.
Adventure motorcycle starts hard when cold. With the Shori batteries it has been no problem starting them.
I needed more space under the seat of my motorcycle to place HID ballasts. This battery is small enough to make that happen.
This is an outstanding product I would highly recommend to anyone.

