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SigmasTek  |  SKU: BW-9609

Invacare Nutron R51 16", 18", 20" High Performance Wheelchair Replacement Battery 49.45 lb

19% off
New arrival
Sale price $245.99 USD Regular price $302.99
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Factory fresh replacement batteries for Invacare Nutron R51 16" wheelchair
Uses advanced AGM technology for deep cycle performance and durability
Valve regulated, spill-proof design ensures safe and reliable operation
U.L. recognized and CE certified for guaranteed quality and safety
Compatible with electric wheelchairs, power chairs, mobility chairs, and scooters
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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 Nutron R51 16" Battery - Compatible with Invacare Nutron R51 16"

Replace the power pack in your Invacare Nutron R51 16" with a top-quality, factory-fresh replacement battery designed for reliable mobility and consistent performance. This replacement battery is 100% compatible with the Invacare Nutron R51 16" and meets the deep-cycle demands of modern electric wheelchairs. Installation is straightforward—use your existing cables and hardware to connect the new batteries safely.

Key Specifications

  • Compatible Model: Invacare Nutron R51 16"
  • 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 existing cables and hardware from original configuration to connect new batteries

Benefits

  • Durability: AGM and valve-regulated construction prevent leaks and withstand the rigors of daily mobility use.
  • Long Life: Built for deep-cycle operation to provide many recharge cycles and a long-lasting battery experience for wheelchair users.
  • High Performance: High energy density and stable voltage delivery ensure your wheelchair maintains consistent speed and control under load.
  • Certified Safety: U.L. recognized and CE certified for trustworthy operation in mobility and medical environments.
  • Typical Applications: Perfect for electric wheelchairs, power chairs, mobility chairs, mobility scooters, and other systems that require durable deep-cycle power such as backup and small UPS systems.

Don’t let a weak battery limit your mobility. Order the SigmasTek SP12-35 NB replacement battery for your Invacare Nutron R51 16" today to get a high-performance, long-lasting battery with a 1 year warranty and fast shipping. Keep your mobility device running at peak performance—purchase now.

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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