TYKOOL YTX9-BS-PRO,3X Cranking Amps,5X Life, Lithium LiFePO4 Motorcycle Battery,300 CCA,Powersports Battery,Fits for ATV,UTV,Scooter,Riding Lawn Mower,Honda eu3000is,400ex,Predator Generator
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Availability:
In Stock.
Arrives
Friday, May 22
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Size: 9-BS-PRO
Features
- PRO-GRADE 300CCA STARTING POWER: The PRO series delivers an upgraded 300 CCA and 5Ah capacity, designed for high-compression engines and bikes with high parasitic draw. LiFePO4 technology provides massive cranking current and 2,000+ cycles, outperforming lead-acid in both power and longevity.
- PRECISION PHYSICAL DATA & FIT: 150x87x105mm(5.9*3.43*3.66in)(L*W*H) at only 2.1 lbs (approx). Featuring Left Hand Positive [+ -] polarity, it serves as a seamless drop-in replacement for YTX9-BS,GTX9-BS. The ultra-lightweight construction reduces unsprung weight, a critical advantage for track days and high-speed cornering.
- DIGITAL SOC % SMART MONITORING: Features a high-definition Digital SOC (State of Charge) Readout, displaying the exact percentage of remaining energy. The integrated BMS provides military-grade protection against over-charge, over-discharge, over-current, and ensures precise cell voltage balancing.
- ELITE SPORTBIKE COMPATIBILITY: Optimized for high-revving performance machines such as the BMW S1000RR (select years), Triumph Street Triple 675/765, and KTM RC 390. It supports the complex electronics and quick-shifters found on modern supersport and naked motorcycles.
- MULTI-BRAND PERFORMANCE FITMENT: A perfect match for Kawasaki Z900, Z1000, and Honda CBR600RR owners seeking a weight-saving edge. Its stable discharge curve ensures that fuel pumps and ignition coils receive maximum voltage for optimal engine performance and throttle response.
- IP66 SEALED FOR RACING CONDITIONS: The IP66-rated housing ensures total protection against dust and high-pressure water jets. Whether you are racing in the rain or washing off track grime, the PRO series' ruggedized case ensures your power source remains dry and fully functional in any weather.
- VOLTAGE COMPATIBILITY & WARRANTY: Exclusively for vehicles with a qualified regulator delivering stabilized output under 15.0V. Avoid use with old Shunt-style regulators which can exceed 15V and damage cells; upgrade to a MOSFET regulator for best results. Verify charging voltage (14.4V0.2V) before use.
Brand: TYKOOL
Vehicle Service Type: ATV, Scooter, UTV, motorcycle
Size: 9-BS-PRO
Voltage: 12 Volts
Battery Cell Composition: Lithium Ion
Item Weight: 2.46 Pounds
Product Dimensions: 3.66"D x 5.9"W x 3.43"H
Terminal: Bolt Terminal
OEM Part Number: 31500-HN1-003AH; 26012-0589; 33610-14F20; 31500-KPT-A01; 26012-1330; 33610-33E20; 4010630; 31500-MCJ-751; 515176151 See more
Automotive Fit Type: Vehicle Specific Fit
Brand: TYKOOL
Size: 9-BS-PRO
Product Dimensions: 3.66"D x 5.9"W x 3.43"H
Terminal: Bolt Terminal
OEM Part Number: 31500-HN1-003AH; 26012-0589; 33610-14F20; 31500-KPT-A01; 26012-1330; 33610-33E20; 4010630; 31500-MCJ-751; 515176151
Automotive Fit Type: Vehicle Specific Fit
Manufacturer: TYKOOL
Model: LFP9-BS-PRO
Item Weight: 2.46 pounds
Item model number: LFP9-BS-PRO
Batteries: 1 Lithium Ion batteries required. (included)
Manufacturer Part Number: LFP9-BS-PRO
Date First Available: December 30, 2024
Frequently asked questions
If you place your order now, the estimated arrival date for this product is:
Friday, May 22
Yes, absolutely! You may return this product for a full refund within 30 days of receiving it.
To initiate a return, please visit our Returns Center.
View our full returns policy here.
To initiate a return, please visit our Returns Center.
View our full returns policy here.
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Top Amazon Reviews
Size: 14L-BS-PRO
1 year later - Works fantastic! Installed on a 2015 Harley Davidson XG750 that eats conventional batteries for breakfast. No signs of swelling or charge degradation. This battery was slightly larger than the OEM battery making the fitment very close, but it will work. Additional consideration is that this battery is much lighter weight than conventional replacements. This battery is compatible with the OEM Harley trickle charger. Just make sure you use the Lithium - ion setting. Great battery, Strong/robust crank, just tight fitment on my particular bike. Buy Lithium if you are tired of your bike eating batteries!
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Reviewed in the United States on September 15, 2025 by Sean C Wiblin
Size: 5L-BS-PRO
Smaller than my OEM battery, but it starts my motorcycle easily. 650 KTM, starts right up every time. Also, this battery weighs about 24 ounces as opposed to the 12 pound monster it used to have, so handling it is super easy. I'd buy this again if I needed to. I suspect it'll last about 1 summer in the Arizona heat, so probably will buy another in about 8 months.
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Reviewed in the United States on January 27, 2026 by Shawn Patrick
Size: 20-BS-PRO
Put this in my 1979 FXS shovelhead 93" stroker with 9-1 compression. I have a 1.6kw high torque starter. Starts the bike perfectly and is holding a charge well. 4lbs of incredible is what I've started to call this battery. Time will tell if it lasts but so far I am very impressed. Fit well too. Edit: 7/14/25...battery stops making power after 5 minutes of the bike running and kills the bike. The battery self test stops reading any voltage or percentage of charge left. 15-20 minutes later the battery comes back to life and reads 100% charge. Bike charging system checks out perfect so it must be internally shorting? Guess I'm going back to an AGM battery.
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Reviewed in the United States on July 9, 2025 by Mark Stellato
Size: 14AHL-BS-PRO
So small and light but stays charged all the time.
Reviewed in the United States on January 17, 2026 by Tammy S DuBay
Size: 5L-BS-PRO
this is a great little battery for our kids Quads! i was sick of buying every year and leaving them on tender only to go bad. this is the way to go
Reviewed in the United States on February 2, 2026 by Mike W.
Size: 14AHL-BS-PRO
put in bike started nice .didnt ride .charging good.syartrd week later .great..didnt start for month..batt gone .nothing.wont charge on charger..junk .update..update ...contacted seler.. full replacement batt on its way..awsum ..thay are taking care of me..awsum customer service..thnk u so much.alot good comments bout ther batt..mine was one bad bug..thnks so much
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Reviewed in the United States on November 9, 2025 by john wallace
Size: 14AH-BS-PRO
Lighter weight,smaller size and more power.
Reviewed in the United States on February 13, 2026 by Roger Karcher
Size: 9-BS-PRO
Basically, if you’re looking for a lithium battery for your Royal Enfield Himalayan 411 and aren't sure about the fitment, I can confirm this TYKOOL YTX9-BS-PRO fits perfectly. No modifications or "creative engineering" required to get it into the tray. The installation was actually easier than the OEM/factory battery. It’s much less of a struggle to drop in and get the terminals aligned compared to the stock unit. The biggest win here is the weight difference. This thing is significantly lighter than the stock lead-acid brick, which is a huge plus for keeping the bike's center of gravity manageable. It cranks the 411 over instantly with zero hesitation. This is my initial review, I’ll be sure to update this in about 6 months to report on the long-term reliability. But for now, it's a solid upgrade.
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Reviewed in the United States on March 15, 2026 by Abhinav