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SigmasTek  |  SKU: BW-18425

Kawasaki (Jet Ski) JS400 400CC 1976 Compatible Replacement Battery 11.62 lb

17% off
Sale price $52.97 USD Regular price $64.06
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Maintenance-free AGM design eliminates acid refills
Spillproof and leakproof for safe, worry-free use
U.L. recognized and CE certified for quality assurance
Superior starting power with deep cycle capacity
Built to resist extreme freeze, heat, and vibration 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.

Delivery and Shipping

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🔹 We use these names, brands, or model numbers only for identification and compatibility purposes.


Volts & Amps

12 Volts | 18 Ah

Terminal Type

Nut & Bolt

Kawasaki (Jet Ski) 400CC JS400 12V 18Ah Replacement Battery — Compatible with JS400 (1976)

Get reliable starting power for your Kawasaki (Jet Ski) 400CC JS400 (1976) with this AGM maintenance-free 12V 18Ah replacement battery. Engineered for the demands of personal watercraft, this high-performance battery combines spillproof safety and superior starting capacity so you can spend more time on the water and less time troubleshooting. Enjoy the peace of mind that comes from a durable, factory-fresh power source designed for marine conditions.

Key Specifications

  • Compatibility: Kawasaki (Jet Ski) 400CC JS400, 1976
  • Voltage: 12 Volts
  • Capacity: 18 Ah
  • Battery Type: AGM Maintenance Free (Absorbed Glass Mat)
  • Design Features: Maintenance-Free, Spillproof and Leakproof
  • Certifications: U.L. Recognized and CE Certified
  • Valve System: Valve Regulated Vent System
  • Durability Traits: Extreme Freeze, Heat and Vibration Resistance
  • Performance Traits: Superior Starting Power and Deep Cycle Capacity
  • Condition: Brand New, Factory Fresh
  • Warranty: 6 Month Warranty
  • Terminal Type: Nut & Bolt
  • Brand(s) Mentioned: SigmasTek, Kawasaki
  • Application Focus: High rate discharge applications

Benefits

  • Durability: AGM construction and valve-regulated design offer robust protection against vibration, temperature extremes, and the rigors of marine environments.
  • Long Life: Maintenance-free design and superior deep-cycle capacity help extend useful life compared with conventional flooded batteries, making this a long-lasting battery option for seasonal watercraft.
  • High Performance: Specifically optimized for high-rate discharge applications, delivering the burst of power required for quick starts and heavy load situations on jet skis.
  • Safety & Convenience: Spillproof, leakproof, and maintenance-free—no acid filling or regular topping up—so you can focus on riding rather than upkeep.
  • Typical Applications: Ideal for personal watercraft starting, emergency backup power on boats, and compact high-drain tool applications where brief high power output is required.
  • Tested Quality: Each battery is professionally tested and packaged to ensure dependable performance out of the box.

If you need a reliable, high-performance replacement battery for your Kawasaki JS400 (1976), this 12V 18Ah AGM unit delivers strong starting power, durable construction, and maintenance-free convenience. It’s an excellent choice for riders who want dependable performance on the water.

Don’t wait—secure your Kawasaki JS400 replacement battery today and enjoy a long-lasting battery that keeps you running season after season.

Technical Specifications

Voltage12 Volts
Amp Hours18 Ah
Terminal TypeNut & Bolt
Cold Cranking Amps (CCA)270.0
Length (in.)6.89
Width (in.)3.43
Height (in.)6.14
Weight (lb.)11.61

Product Highlights

  • Brand Replacement : Kawasaki
  • Manufacturer: SigmasTek
  • Product Type: Personal Watercraft
  • Warranty: 6 Months
  • Bulk Orders: sales@batteryweb.com

Connections & Interface

  • Polarity: "-/+"

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