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SigmasTek  |  SKU: BW-17466

Coolster GK-6125 125CC High Performance Replacement Battery 4.96 lb

20% off
Sale price $36.99 USD Regular price $45.99
Shipping calculated at checkout.
Maintenance-free AGM design eliminates the need for acid refills
Spillproof and leakproof for safe, hassle-free use
U.L. recognized and CE certified for guaranteed quality
Extreme resistance to freeze, heat, and vibration ensures durability
Provides superior starting power and deep cycle capacity for high performance
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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

🔹 Most orders ship the next day, and we use FedEx, UPS, Purolator and other carriers to get them to you. Lithium batteries have to ship by ground only, not air or USPS. Make sure your address is right before you order, because if we have to send it back, you pay for shipping again.

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


Volts & Amps

12 Volts | 6 Ah

Terminal Type

Nut & Bolt

Coolster 125CC GK-6125 Replacement Go Kart Battery

Specifically designed as a replacement battery for the Coolster 125CC GK-6125 go kart, this AGM maintenance-free unit offers dependable starting power, rugged reliability and maintenance-free convenience. Ideal for high-rate discharge applications like go karts where short bursts of high power are required, this high-performance battery provides consistent starts and stable power delivery while resisting vibration and temperature extremes.

Key Specifications

  • Compatible Model: Coolster 125CC GK-6125 (Go Kart)
  • Replacement Brand: SigmasTek
  • Vehicle Brand: Coolster
  • Battery Type: AGM Maintenance-Free (Absorbed Glass Mat Design)
  • Voltage: 12 Volts
  • Amp-Hours: 6 Ah
  • Terminal Type: Nut & Bolt
  • Design Features: Maintenance-Free, Spillproof and Leakproof
  • Certifications: U.L. Recognized and CE Certified
  • Valve Regulated Vent System
  • Durability: Extreme Freeze, Heat and Vibration Resistance
  • Performance: Superior Starting Power and Deep Cycle Capacity
  • Condition: Brand New, Factory Fresh
  • Warranty: 6 Month Warranty

Benefits

  • Durability: The AGM design and robust build protect against spills and leaks and add resistance to vibration—perfect for the bumps and impacts of karting.
  • Long Life: A maintenance-free construction eliminates the need for acid topping, and factory testing helps ensure this long-lasting battery will deliver reliable service lap after lap.
  • High Performance: Built for high-rate discharge, this high-performance battery provides the immediate power needed for fast starts and acceleration in competitive and recreational go karts.
  • Quality Assured: U.L. recognition and CE certification demonstrate compliance with industry safety and quality standards for confident operation.
  • Flexible Applications: While optimized for the Coolster 125CC GK-6125 go kart, this 12V replacement battery is also a dependable choice for similar powersports, emergency backup power, UPS systems or portable tools that require a reliable, long-lasting battery.
  • Ready to Install: Ships brand new and factory fresh with professional testing and packaging and includes a 6 month warranty for peace of mind.

Ready to upgrade? Purchase this Coolster 125CC GK-6125 replacement battery now to enjoy a high-performance, long-lasting battery solution that keeps your go kart running strong.

Technical Specifications

Voltage12 Volts
Amp Hours6 Ah
Terminal TypeNut & Bolt
Cold Cranking Amps (CCA)100
Length (in.)4.49
Width (in.)2.8
Height (in.)5.12
Weight (lb.)4.96

Product Highlights

  • Brand Replacement : Coolster
  • Manufacturer: SigmasTek
  • Product Type: ATV
  • Warranty: 12 Months
  • Bulk Orders: sales@batteryweb.com

Connections & Interface

  • Polarity: "'-/+"

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