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SigmasTek  |  SKU: BW-9112

Invacare Pronto M91 High Performance Wheelchair Replacement Battery 72.06 lb

17% off
New arrival
Sale price $385.99 USD Regular price $462.99
Shipping calculated at checkout.
Factory fresh and brand new for reliable performance
100% compatible with Invacare Pronto M91 wheelchair models
AGM technology with valve regulated, spill-proof design
Deep cycle usage ensures long-lasting power and durability
Comes with a 1-year warranty and CE/U.L. certifications
In stock

— Ready to ship immediately

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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.


Volts & Amps

12 Volts | 55 AH

Terminal Type

Nut & Bolt

Replacement Invacare Pronto M91 SP12-55 NB (12 V 55 AH) Battery

Upgrade your Invacare Pronto M91 with a reliable, factory-fresh replacement battery designed for peak compatibility and dependable everyday performance. These replacement Invacare Pronto M91 batteries deliver consistent power, deep-cycle capability, and spill-proof construction so your mobility device maintains range and responsiveness. Built to be a high-performance battery replacement for your Pronto M91, they provide the peace of mind you expect from a long-lasting battery solution that is 100% compatible with your unit when paired using your existing cables and hardware.

Key Specifications

  • Model / Requirement: SP12-55 NB (12 V 55 AH)
  • Voltage: 12 Volts
  • Amp-Hours: 55 AH
  • Terminal Type: Nut & Bolt
  • Brand: SigmasTek
  • Technology: Absorbent Glass Mat (AGM)
  • Designed For: Deep Cycle Usage
  • Construction: Valve Regulated Spill Proof Construction
  • Certifications: U.L. Recognized and CE Certified
  • Condition: Brand New, Factory Fresh
  • Warranty: 1 Year Warranty
  • Packaging: Sold for use in pairs (Pronto M91 requires 2 batteries)

Benefits

These batteries are engineered for durability and long service life so users enjoy dependable daily mobility. The Absorbent Glass Mat (AGM) design ensures a robust, spill-proof assembly that resists vibration and deep discharge, making it a long-lasting battery option for intensive use. As a high-performance battery, the SP12-55 NB provides a favorable power-to-volume ratio and superior energy density for extended run times without sacrificing reliability.

Because they are designed for deep cycle usage, these replacement battery units are ideal for repeated charge and discharge cycles common in mobility applications. Performance guaranteed and backed by a 1 year warranty, they offer both value and reassurance for caregivers and riders who depend on consistent power.

  • Primary applications: Electric wheelchairs, power chairs, mobility chairs, mobility scooters
  • Also suitable for backup or emergency setups requiring sealed, deep-cycle lead acid batteries
  • Common scenarios: daily mobility use, transport, travel, and consistent home or community outings

If you need guidance selecting the correct replacement battery for your Invacare Pronto M91, our customer service team is available at (800) 657-1303 or via e-mail. Orders for in-stock items are typically shipped within 24 hours, so you can get back to reliable mobility quickly. Choose this high-performance battery now to restore power and confidence to your Invacare Pronto M91 — buy today and experience the long-lasting battery performance you deserve.

Technical Specifications

Voltage12 Volts
Amp Hours55 AH
Terminal TypeNut & Bolt
Length (in.)9.04
Width (in.)5.45
Height (in.)8.15
Weight (lb.)72.0

Product Highlights

  • Brand Replacement : Invacare Pronto M91
  • Manufacturer: SigmasTek
  • Product Type: Medical Equipment Batteries
  • Warranty: 12 Months
  • Bulk Orders: sales@batteryweb.com

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