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SigmasTek  |  SKU: BW-8527

Invacare Nutron R51 16", 18", 20" U1 High Performance Replacement Battery Set 49.45 lb

26% off
New arrival
Sale price $245.99 USD Regular price $332.99
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High-performance 12V 35AH battery ensures reliable power for your Invacare Nutron R51 wheelchair
Maintenance-free and spill-proof design for safe, hassle-free use
AGM technology provides long service life and wide operating temperature range
Guaranteed compatibility with original battery terminals (NB) and specifications
Includes 1-year warranty and quick UPS Ground or USPS shipping within 1 business day
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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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Volts & Amps

12 Volts | 35 AH

Terminal Type

Nut & Bolt

Invacare Nutron R51 (16", 18" or 20" seat) Replacement Battery

The Invacare Nutron R51 wheelchair relies on dependable power — this replacement battery option is designed for compatibility, performance, and reliability. Built to match or exceed original manufacturer specifications, the Invacare Nutron R51 replacement battery delivers consistent discharge performance, broad operating temperature tolerance, and a long expected service life. Whether you need a single unit to supplement an existing pack or you are replacing both cells, this long-lasting battery solution helps restore mobility with confidence and is offered as a maintenance-free, spill-proof SLA/AGM design you can trust.

Key Specifications

  • Model Compatibility: Invacare Nutron R51 (16", 18" or 20" seat) — requires 2 batteries in original configuration
  • Volts: 12
  • Amps (AH): 35
  • Terminal: NB
  • Terminal Detail: Nut & Bolt
  • Package contains: 1 battery
  • Chemistry: SLA (Sealed Lead Acid)
  • Technology: AGM (Absorbent Glass Mat)
  • Maintenance: Maintenance-free
  • Spill Proof: Yes
  • Guaranteed compatibility with original battery
  • Weight: 49.4Lbs
  • Length: 7.72 (inches)
  • Width: 5.14 (inches)
  • Height: 6.14 (inches)
  • Warranty: 1-year Warranty
  • Warranty Policy: SigmasTek
  • Shipping Methods: UPS Ground and USPS
  • Shipping Speed: We ship in 1 business day for all in-stock items

Benefits

This high-performance battery is engineered for durability and dependable output. The AGM, SLA construction provides a sealed, maintenance-free experience that reduces upkeep and prevents spills, making it ideal for mobility devices where safety and cleanliness matter. As a replacement battery for the Invacare Nutron R51, it offers long-lasting battery life and consistent voltage under load, ensuring reliable operation of electronics and motors.

Durability: Robust build and sealed AGM plates resist vibration and typical wear from daily use. Longevity: Designed for a long expected service life compared with standard flooded batteries — a true long-lasting battery option. Performance: High discharge characteristics support motor starts and continuous draw without premature voltage sag, making this a high-performance battery suitable for heavy-duty cycles.

Typical applications include wheelchair power systems, UPS standby modules for small equipment, emergency power backups, and portable tool charging setups where 12V 35AH capacity is required. Install in the same original configuration and reuse your existing cables; always check your existing battery dimensions prior to ordering as manufacturers may change requirements without notice.

If you need a reliable replacement battery for your Invacare Nutron R51, this high-performance, long-lasting battery is ready to restore mobility and confidence. Click to purchase and get fast shipping and a 1-year warranty for peace of mind.

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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