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SigmasTek  |  SKU: BW-17996

STX20L-BS 12V 18AH High Performance Replacement Battery for Kawasaki JT900 STS STX (1997-2005) 11.62 lb

11% off
Sale price $75.99 USD Regular price $84.99
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Designed specifically for Kawasaki JT900 STS and STX models (1997-2005)
Meets or exceeds OEM specifications for a perfect fit
12V 18AH capacity delivers superior performance and long-lasting power
Maintenance-free and spill-proof for worry-free use
Enhanced vibration resistance ensures reliable starting in tough marine conditions
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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 12V 18AH Battery — Kawasaki JT900 STS & STX (1997-2005)

Upgrade your Kawasaki JT900 STS or STX (1997-2005) with this STX20L-BS replacement battery engineered for dependable starting and durability. This maintenance-free, spill-proof battery delivers the consistent power you need in harsh marine environments. Designed to meet or exceed OEM specifications, it’s a solid choice for riders who want a long-lasting battery that installs easily and performs under vibration and wet conditions.

Key Specifications

  • Model compatibility: Kawasaki JT900 STS and STX (1997-2005)
  • Battery model: STX20L-BS
  • Meets or exceeds: OEM specifications for a perfect fit
  • Voltage: 12V
  • Capacity: 18AH
  • Design: Maintenance-free and spill-proof design
  • Durability: Enhanced vibration resistance for harsh conditions
  • Performance: Provides reliable starting power for personal watercraft
  • Brand: SigmasTek
  • Terminal type: Nut & Bolt

Benefits

  • Durability: The sealed, maintenance-free construction is spill-proof and designed to resist the vibration and shock common in personal watercraft applications.
  • Long life: Built to OEM standards, this replacement battery offers dependable cycles and sustained capacity for repeated starts and seasonal use.
  • High performance: With 12V 18AH capacity, the STX20L-BS supplies the starting current required to crank Jet Ski engines reliably, ensuring you get underway quickly.
  • Applications: Ideal for Kawasaki JT900 STS and STX models, this battery is also suitable for other small marine craft and applications that demand a compact, sealed, high-performance battery.
  • Ease of use: Maintenance-free operation and spill-proof design mean less upkeep and more time on the water.

Ensure reliable starts and strong performance for your Kawasaki JT900 STS or STX by choosing this STX20L-BS replacement battery. Order now to secure a dependable, long-lasting battery that keeps your personal watercraft ready when you are.

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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