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SigmasTek  |  SKU: BW-9611

Invacare Nutron R51 14" U1 High Performance Wheelchair Replacement Battery 49.45 lb

23% off
New arrival
Sale price $245.99 USD Regular price $317.99
Shipping calculated at checkout.
Factory fresh replacement batteries for Invacare New Nutron R51 wheelchairs
Uses Absorbent Glass Mat (AGM) technology for durability and deep cycle performance
Valve regulated, spill-proof design ensures safe and reliable operation
100% compatible with original Invacare New Nutron R51 units, using existing cables
Backed by a 1-year warranty and certified for quality and safety standards
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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.

Brand Replacement

SigmasTek

Volts & Amps

12 Volts | 35 AH

Terminal Type

Nut & Bolt

Replacement Invacare New Nutron R51 Battery - Compatible with Invacare New Nutron R51

Ensure uninterrupted mobility with a factory-fresh replacement battery tailored for the Invacare New Nutron R51. This replacement battery is 100% compatible with your Invacare New Nutron R51 unit and built to meet the deep-cycle demands of modern mobility devices. With AGM technology and valve-regulated, spill-proof construction, this high-performance battery offers the reliability and long service life you expect from a trusted replacement battery. Installation uses your existing cables and hardware for a straightforward swap.

Key Specifications

  • Compatible Model: Invacare New Nutron R51
  • Required Quantity: 2 batteries (unit requires two)
  • Model / Part Number: SP12-35 NB
  • Voltage: 12 Volts
  • Capacity: 35 AH
  • Technology: Absorbent Glass Mat (AGM) Technology
  • Usage Type: Designed For Deep Cycle Usage
  • Construction: Valve Regulated Spill Proof Construction
  • Energy Characteristics: Power/Volume Ratio Yielding Unrivaled Energy Density
  • Certifications: U.L. Recognized and CE Certified
  • Condition: Brand New, Factory Fresh
  • Warranty: 1 Year Warranty
  • Terminal Type: Nut & Bolt
  • Brand: SigmasTek
  • Performance: Performance Guaranteed
  • Installation Note: Use all existing cables and hardware from original configuration to connect new batteries

Benefits

  • Durability: AGM and valve-regulated design provide leak-resistant, vibration-tolerant performance for everyday mobility use.
  • Long Life: Deep-cycle construction helps maximize recharge cycles and provides a long-lasting battery solution for frequent users.
  • High Performance: High energy density supports steady voltage delivery so your wheelchair performs consistently under load.
  • Safety & Certification: U.L. recognized and CE certified for compliant and safe use in mobility equipment.
  • Typical Applications: Recommended for electric wheelchairs, power chairs, mobility chairs, mobility scooters, and other systems needing dependable deep-cycle power including small UPS and emergency backup applications.

Don’t wait until you’re stranded—purchase the SigmasTek SP12-35 NB replacement battery for your Invacare New Nutron R51 today. This long-lasting battery arrives brand new and backed by a 1 year warranty for confidence and fast restoration of your mobility device’s performance.

Technical Specifications

Voltage12 Volts
Amp Hours35 AH
Terminal TypeNut & Bolt
Length (in.)7.72
Width (in.)5.14
Height (in.)6.22
Weight (lb.)49.4

Product Highlights

  • Brand Replacement : Invacare Nutron R51
  • Manufacturer: SigmasTek
  • Product Type: Medical Equipment Batteries
  • Warranty: 12 Months
  • Bulk Orders: sales@batteryweb.com

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