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TYKOOL

TYKOOL LFP20L-BS-PRO Lithium Motorcycle Battery, Replaces GYZ20L GYZ20HL YTX20HL-BS, 600CCA 12Ah Fits for Harley Softail Fatboy,Dyna,Sea-Doo 1500cc GT Series Yamaha 1800cc, Digital Readout

  • Based on 166 reviews
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Availability: In Stock.
Fulfilled by Amazon
Arrives Thursday, Jul 23
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Size: 20L-BS-PRO


Features

  • ELITE PRO-SERIES PERFORMANCE: Delivering a staggering 600CCAspecifically engineered to replace the high-capacity GYZ20L, GYZ20HL,and YTX20HL-BS. Also replaces OEM 65989-97A/B/C/D. At 4.2 lbs (1.90 kg), it offers a dramatic power-to-weight ratio improvement for riders who demand racing-grade starting speed and instant ignition for modified engines.
  • UPGRADED 12AH ENERGY STORAGE: Features an expanded 12Ah capacity, providing elite energy reserves for modern motorcycle electronics, high-output LED lighting, and premium audio systems on Harley Road Glide and Street Glide Special. The superior depth of discharge allows for longer standby times and consistent performance under heavy electrical loads.
  • PRECISION PHYSICAL FITMENT: Exact dimensions: 6.89x3.43x6.10in (175x87x155mm) for a perfect fit in Harley and Polaris battery trays. Polarity: [- +]. Built with reinforced, vibration-isolated terminals designed to handle the massive current throughput required for professional-grade utility and heavy touring applications.
  • SMART BMS TELEMETRY HUB: Integrated high-precision Digital Readout LCD provides real-time telemetry of battery health. The advanced PRO-series BMS manages cell balancing with surgical precision, protecting the core against over-voltage and thermal stress for a lifespan of over 3000 deep discharge cycles.
  • PREMIUM MOTORCYCLE APPLICATIONS: The ultimate upgrade for heavy-displacement cruisers including the Harley Ultra Limited, Road King Special, and Fat Bob. Superior energy density keeps your bike's CAN-bus and security systems active during storage without the "vampire drain" issues common in standard lithium units.
  • IP66 WATERPROOF & INDUSTRIAL STRENGTH: Professional-grade sealing ensures IP66 performance. The rugged, flame-retardant housing provides unmatched structural integrity in demanding environments, from high-heat desert trail riding to extreme offshore marine racing in Sea-Doo and Yamaha PWC.
  • VOLTAGE & CHARGER COMPLIANCE: Exclusively for vehicles with a qualified regulator delivering output under 15.0V. Use ONLY dedicated LiFePO4 chargers. DO NOT use lead-acid chargers with pulse-repair or desulfurization modes, as high-voltage peaks will permanently damage the internal PRO-grade BMS.

Description

TYKOOL has been dedicated to manufacturing and selling high-performance lithium powersports batteries since 2013. Our batteries offer exceptional Cranking Power, enabling reliable cold-weather starting, more starts, extended storage times, and improved motor turn-over. Experience the power of a TYKOOL Lithium Battery for optimal performance. Visit the Store Visit the Store

Brand: TYKOOL


Vehicle Service Type: ATV, Personal Watercraft, Snowmobile, UTV, motorcycle


Size: 20L-BS-PRO


Voltage: 12 Volts


Battery Cell Composition: Lithium Ion


Item Weight: 5.1 Pounds


Product Dimensions: 3.42"D x 6.9"W x 6.1"H


Number Of Cells: 4


Terminal: Bolt Terminal


Battery Capacity: 12 Amp Hours


Compatible with Vehicle Type: ATV, Personal Watercraft, Snowmobile, UTV, motorcycle


Voltage: 12 Volts


Number Of Cells: 4


Terminal: Bolt Terminal


Battery Capacity: 12 Amp Hours


Automotive Fit Type: Vehicle Specific Fit


Size: 20L-BS-PRO


Item Weight: 5.1 Pounds


Item Dimensions D x W x H: 3.42"D x 6.9"W x 6.1"H


Battery Type: Lithium Ion


Brand Name: TYKOOL


Manufacturer Part Number: LFP20L-BS-PRO


OEM Equivalent Part Number: 65989-97,65989-97A,65989-97B,65989-97C,65989-97D,4100440-MCA-003,5YU-82100-00-00,ETX20L,CYTX20L-BS,20L-BS


Model Number: LFP20L-BS-PRO


Manufacturer: TYKOOL


Item Type Name: Powersports Battery


Manufacturer Warranty Description: 12 months warranty


Included Components: 12.8V LiFePO4 Battery, M6 Terminal Bolts & Nuts, Protective Terminal Caps, User Manual,No spacer required


Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Thursday, Jul 23

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.

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Top Amazon Reviews

    • Great battery
Size: 20L-BS-PRO
I bought this battery in February for my 2008 dyna fat bob works great super light way. I feel like my bike has more power. I run a speaker and it never drains. Bike always starts right up even after cold start. It sat for 2 weeks bike started right up no hesitation. I then Placed it in my 2007 dyna since standard battery died that was put in bike last month. Lethium started the 07 right up. ... show more
Reviewed in the United States on July 9, 2024 by Monique
    • Believe the Reviews, unreliable.
Size: 20L-BS-PRO
Bought for my Seadoo Switch boat. Should be a direct replacement for the YTX20HL (it fit fine). -Put on a NOCO lithium charger to keep it topped up until we went out. Went out in late may, worked great! Fired up the boat great, stereo worked great, I get back from being out all day and the battery is showing 94%. Fantastic, I'm impressed. Take it out again 2 days ago, 100% (again had it on a LITHIUM trickle charger) showed 100%, fired up the boat in the driveway, worked fine. Launch, get 100 yards away from the dock - my boat starts throwing all kinds of errors, reverse wont engage, I open the hatch and its showing like 12.2 volts (below the 12.8 rating). Keep in mind I started the boat and not 1 minute later it went from 100% to 66% state of charge. Limped back to the dock while my boat threw every error imaginable, went to Advance Auto, and bought a YTX24HL AGM Battery, took the bout out with no errors, and was fine the rest of the day. I would avoid this if you need your vehicle to run. Best case scenario it works a few times, worst is you get stranded on the water miles away from dock. Unreliable and not worth the risk. Luckily amazon refunded me for it. ... show more
Reviewed in the United States on June 9, 2026 by MadMike
    • Excellent Battery
Size: 20L-BS-PRO
Perfect fit. Extremely lightweight b
Reviewed in the United States on April 18, 2026 by Zahir Jabar
    • Item as described
Size: 20L-BS-PRO
Item as described and delivered as stated
Reviewed in the United States on June 3, 2026 by Phil Reynolds
    • Worked. Stopped working. After a long delay, seller sent a replacement; replacement went bad.
Size: 20L-BS-PRO
Product Worked initially in a Kawasaki Mule 3010. The screen was a great plus. After very light use maybe 50 times, it stopped working. When connected to a battery or charger it shows 100% when I removed the battery or charger the screen didn't work at all. Within the 1 year warranty, I contacted Seller for assistance...Seller Responded to my 1st email, I provided the order number, photos and video. Seller didn't respond after that, I sent a follow up email and seller didn't respond to that either. Amazon promised a refund, but less a charge. Then Seller contacted me and followed through and replaced the battery. Better late than never. The replacement worked for a couple of weeks. But stopped and didn't seem to charge. Ultimately the battery got fat and useless. I really wanted to like this. Double sets of connections. Specifications are good. But for me it was a complete waste of money and time. ... show more
Reviewed in the United States on February 5, 2025 by Amazon Customer
    • A ton of power!
Size: 20L-BS-PRO
I shopped around before I bought this Lipo battery and couldn’t even get near the amount of power at prices that were much much more. I have a 300 cc quad 4 x 4 and I had always noticed that it idles slightly erratic when it was cold even with the best and freshest fuel. I put this battery on it and it start it up immediately and idled great . It is so light weight that it is ridiculous! Going to buy one more for my other quad, then I don’t have to worry about either of them being low on battery if they’re not used for a couple of months at a time. ... show more
Reviewed in the United States on August 20, 2023 by Susan/Steven
    • Good
Size: 20L-BS-PRO
So far, so good. Very light. Starts my Victory Cross Country easily. Haven't had it long so we'll see how the longevity is.
Reviewed in the United States on April 21, 2026 by godsfake666
    • Perfect fit and nice features.
Size: 20L-BS-PRO
Upgraded from an old style lead acid, to this more powerful and reliable battery. Has a nice, built in digital voltage meter with internal BMS. Size matched up to my Kawasaki Mule. Can't wait to really put it through a full season of use.
Reviewed in the United States on April 16, 2025 by David Puerner

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