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SigmasTek  |  SKU: BW-19890

Power Max GT9B-4 High Performance Replacement Battery 8.71 lb

13% off
Sale price $46.99 USD Regular price $53.99
Shipping calculated at checkout.
Maintenance-free AGM design eliminates the need for acid refills
Spillproof and leakproof for safe and hassle-free handling
U.L. recognized and CE certified for guaranteed safety and quality
Superior starting power with deep cycle capacity for reliable performance
Resistant to extreme freeze, heat, and vibration for long-lasting durability
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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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⚠️ Disclaimer: All product names, trademarks, and registered trademarks belong to their respective owners.

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


Volts & Amps

12 Volts | 8 AH

Terminal Type

Nut & Bolt

Power Max GT9B-4 Replacement Battery — Compatible with GT9B-4

Get reliable starts and consistent power with the Power Max GT9B-4 replacement battery — a premium AGM maintenance-free option designed for compatibility, robust performance, and long-term dependability. This ready-to-install battery eliminates the need for acid filling and delivers factory fresh power straight out of the box. Ideal for motorcycles and other powersport vehicles that demand high-rate discharge and instant starting torque.

Key Specifications

  • Model: GT9B-4
  • Brand: Power Max
  • Voltage: 12 Volts
  • Capacity: 8 AH
  • Terminal Type: Nut & Bolt
  • Design: Absorbed Glass Mat (AGM) — Maintenance-Free
  • Safety: Spillproof and Leakproof Design
  • Certifications: U.L. Recognized and CE Certified
  • Features: Valve Regulated Vent System
  • Environmental Resistance: Extreme Freeze, Heat and Vibration Resistance
  • Performance: Superior Starting Power and Deep Cycle Capacity
  • Condition: Brand New, Factory Fresh
  • Warranty: 6 Month Warranty
  • Vendor Tag: SigmasTek

Benefits

The Power Max GT9B-4 is a high-performance battery engineered for riders and technicians who need reliable power in demanding conditions. Its AGM, maintenance-free construction ensures a spillproof, leakproof user experience while offering excellent vibration resistance and thermal stability for extreme freeze and heat environments. That translates to fewer replacements and more dependable starts over the life of the battery.

As a long-lasting battery choice, it provides both superior starting capacity and solid deep-cycle performance for lights, ignition systems, and accessory loads. The valve regulated vent system and recognized safety certifications add confidence in everyday use and during high-stress starts.

Use this replacement battery for motorcycles, scooters, and powersport vehicles that require brief, high-current bursts. It also suits portable emergency power roles, small UPS setups, and handheld tools that need dependable short-term power delivery.

Ready to ride with confidence? Purchase the Power Max GT9B-4 replacement battery today for a long-lasting battery solution with strong starting power and a 6 month warranty. Buy now for fast shipping and trusted performance.

Technical Specifications

Voltage12 Volts
Amp Hours8 AH
Terminal TypeNut & Bolt
Cold Cranking Amps (CCA)115
Length (in.)5.94
Width (in.)2.76
Height (in.)4.13
Weight (lb.)8.7

Product Highlights

  • Brand Replacement : Power Max
  • Manufacturer: SigmasTek
  • Product Type: Motorcycle
  • Warranty: 6 Months
  • Bulk Orders: sales@batteryweb.com

Connections & Interface

  • Polarity: "'+/-"

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