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SigmasTek  |  SKU: BW-10557

Invacare Lynx SX-3 High Performance Wheelchair Replacement Battery 25.32 lb

22% off
New arrival
Sale price $113.99 USD Regular price $145.99
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Factory fresh, brand new replacement batteries for Invacare Lynx SX-3
100% compatible with Invacare Lynx SX-3 wheelchair models
Absorbent Glass Mat (AGM) technology for deep cycle performance
Valve regulated, spill-proof design ensures safety and reliability
Backed by a 1-year warranty and certified for quality and 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

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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

Replacement Invacare Lynx SX-3 Wheelchair Batteries - Compatible with Invacare Lynx SX-3 (SP12-18 NB, 12V 18Ah)

Upgrade your Invacare Lynx SX-3 with these factory-fresh, high-quality replacement battery units designed specifically for compatibility, superior performance, and long-term reliability. These replacement batteries are engineered to meet the demands of power chairs and mobility devices, delivering consistent power and long cycle life so your Invacare Lynx SX-3 performs when you need it most. Whether you’re replacing worn cells or stocking spares, this high-performance battery solution offers peace of mind and dependable operation.

Key Specifications

  • Compatible Model: Invacare Lynx SX-3
  • Battery Model: SP12-18 NB
  • Voltage: 12 Volts
  • Capacity: 18 Ah (Amp-hours)
  • Terminal Type: Nut & Bolt
  • Technology: Absorbent Glass Mat (AGM)
  • Usage Type: Designed for Deep Cycle Usage
  • Construction: Valve Regulated, Spill Proof
  • Energy Profile: Power/Volume Ratio Yielding Unrivaled Energy Density
  • Certifications: U.L. Recognized and CE Certified
  • Condition: Brand New, Factory Fresh
  • Warranty: 1 Year Warranty
  • Brand: SigmasTek
  • Configuration Note: Invacare Lynx SX-3 requires 2 batteries (use existing cables and hardware to connect)

Benefits

  • Durability: Constructed with AGM technology and valve-regulated, spill-proof design for robust, maintenance-free operation and excellent resistance to vibration and shocks common in mobility use.
  • Long Life: Built for deep cycle use to provide repeated discharge and recharge performance, making this a long-lasting battery choice for daily mobility needs.
  • High Performance: High energy density delivers reliable current and extended runtime for the Invacare Lynx SX-3, ensuring your power chair runs efficiently through the day.
  • Safety & Certification: U.L. Recognized and CE Certified for safety and compliance, offering confidence in medical and mobility applications.
  • Wide Applications: Ideal for electric wheelchairs, power chairs, mobility chairs, and mobility scooters. Also suitable as a high-performance battery for backups in UPS systems, emergency power units, and portable power tools where a 12V 18Ah deep-cycle battery is appropriate.
  • Easy Replacement: Directly compatible SP12-18 NB model and terminal layout (Nut & Bolt) simplify installation—use your original cables and hardware for a seamless swap.

Choose this replacement battery to restore peak performance to your Invacare Lynx SX-3. This long-lasting battery and high-performance battery option is backed by a one-year warranty and the trusted build quality of SigmasTek. Buy now to ensure reliable mobility and fast shipping on in-stock items—get the dependable power you need today.

Technical Specifications

Voltage12 Volts
Amp Hours18 Ah
Terminal TypeNut & Bolt
Length (in.)7.13
Width (in.)3.0
Height (in.)6.59
Weight (lb.)25.3

Product Highlights

  • Brand Replacement : Invacare Lynx SX-3
  • Manufacturer: SigmasTek
  • Product Type: Medical Equipment Batteries
  • Warranty: 12 Months
  • Bulk Orders: sales@batteryweb.com

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