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SigmasTek  |  SKU: BW-17982

STX20L-BS High Performance Replacement Battery for Kawasaki Ultra LX 300LX (2007-2020) 11.62 lb

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Sale price $75.99 USD Regular price $94.99
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Compatible with Kawasaki Ultra LX and 300LX models (2007-2020)
Meets or exceeds OEM specs for dependable starting power
Electrolyte technology offers vibration resistance and spill-proof safety
Maintenance-free design ensures easy installation and hassle-free use
Direct replacement guarantees a perfect fit without modifications
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Battery Care Tips

🔹 Getting Started

Charge your new battery fully before you use it for the first time. Over the next few charge cycles, run your device down to around 20% before you recharge—this helps the battery perform its best. After that, charge whenever you need to.

🔹 Keep It Healthy

Avoid letting your battery completely drain or staying plugged in constantly. Both extremes wear it out faster. Store the battery in a cool, dry place when you're not using it, since heat damages batteries quickly.

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Volts & Amps

12 Volts | 18 Ah

Terminal Type

Nut & Bolt

STX20L-BS Replacement Battery for Kawasaki Ultra LX, 300LX (2007-2020)

Get dependable starting power for your Kawasaki Ultra LX or 300LX (2007-2020) with this STX20L-BS replacement battery. Designed to meet or exceed OEM specifications, this high-performance battery is sealed, maintenance-free, and optimized for the demanding marine environment. Its vibration-resistant electrolyte technology and spill-proof construction make it an ideal long-lasting battery for personal watercraft owners who want reliable performance and hassle-free installation.

Key Specifications

  • Model: STX20L-BS
  • Compatible Model: Kawasaki Ultra LX, 300LX (2007-2020)
  • Brand: SigmasTek
  • Voltage: 12 Volts
  • Capacity: 18 Ah
  • Terminal Type: Nut & Bolt
  • Design: Maintenance-free
  • Construction: Spill-proof operation
  • Performance: Meets or exceeds OEM specifications
  • Durability: Electrolyte technology for superior vibration resistance
  • Fit: Direct replacement for factory battery (guaranteed fit)

Benefits

Engineered for the marine environment, this STX20L-BS replacement battery combines durability and consistent power delivery. The sealed, maintenance-free construction eliminates the need for periodic watering and reduces the risk of corrosive spills—important advantages for PWC storage and transportation. With enhanced vibration resistance and robust internal design, the battery stands up to the shocks and movement commonly experienced on the water, delivering reliable starts and steady accessory power for electronics, pumps, and lighting.

As a high-performance battery, the STX20L-BS provides dependable cranking amps at all temperatures, helping ensure quick starts even after periods of inactivity. Its direct-fit design guarantees an easy, hassle-free swap with your factory battery, so you can get back on the water faster. Typical applications include personal watercraft starting systems, on-board accessory power, and as a reliable reserve battery for emergency starts. If you’re looking for a replacement battery that balances longevity, safety, and performance, this STX20L-BS is built to meet those needs.

Ready to replace your Kawasaki’s battery? Purchase this STX20L-BS long-lasting, high-performance battery now and enjoy reliable starts and worry-free marine power season after season.

Technical Specifications

Voltage12 Volts
Amp Hours18 Ah
Terminal TypeNut & Bolt
Cold Cranking Amps (CCA)270
Length (in.)6.89
Width (in.)3.43
Height (in.)6.14
Weight (lb.)11.61

Product Highlights

  • Manufacturer: SigmasTek
  • Product Type: Powersport Batteries
  • Warranty: 6 Months
  • Bulk Orders: sales@batteryweb.com

Connections & Interface

  • Polarity: "'-/+"

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