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SigmasTek  |  SKU: BW-9658

IMC Heartway Rumba SR P4R U1 High Performance Wheelchair Replacement Battery 49.45 lb

12% off
New arrival
Sale price $245.99 USD Regular price $280.99
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Factory fresh replacement batteries for IMC Heartway Rumba SR P4R U1 wheelchair
Utilizes Absorbent Glass Mat (AGM) technology for deep cycle performance
Valve regulated, spill-proof design ensures safe and reliable use
High energy density delivers superior power and long-lasting performance
U.L. recognized, CE certified, and backed by a 1-year warranty
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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.

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Volts & Amps

12 Volts | 35 AH

Terminal Type

Nut & Bolt

Replacement IMC Heartway Rumba SR P4R U1 Wheelchair Batteries (SP12-35 NB) - 12V 35AH

These brand new replacement batteries are precisely matched for IMC Heartway Rumba SR P4R U1 mobility units and are supplied as high-quality, factory-fresh batteries designed for deep cycle wheelchair use. Intended to replace the SP12-35 NB (12V 35AH) cells, this high-performance battery option restores power and range to power chairs, electric wheelchairs, and mobility scooters. For best results, use the existing cables and hardware from your original configuration to connect the batteries.

Key Specifications

  • Compatible model: IMC Heartway Rumba SR P4R U1
  • Required battery type: SP12-35 NB (12 V 35 AH)
  • Voltage: 12 Volts
  • Capacity: 35 AH
  • Battery chemistry/technology: Absorbent Glass Mat (AGM)
  • Usage design: Designed for Deep Cycle Usage
  • Construction: Valve Regulated, Spill Proof
  • Energy density: Power/Volume Ratio Yielding Unrivaled Energy Density
  • Certifications: U.L. Recognized and CE Certified
  • Condition: Brand New, Factory Fresh
  • Terminal type: Nut & Bolt
  • Brand: SigmasTek
  • Warranty: 1 Year

Benefits

These replacement battery cells deliver dependable, long-lasting battery performance tailored for mobility applications. AGM deep-cycle construction enables repeated deep discharge and recharge cycles with minimal capacity loss, making them an ideal long-lasting battery for electric wheelchairs, power chairs, mobility chairs, and mobility scooters. The valve-regulated, spill-proof design enhances safety and allows installation in various orientations without fluid leakage concerns.

As a high-performance battery option, the SP12-35 NB provides a strong power-to-volume ratio that maximizes range and runtime while keeping a compact footprint. Nut & bolt terminals ensure a secure, low-resistance connection when installed with your original mounting hardware and cables. The combination of factory-fresh condition, U.L. and CE certifications, and a 1-year warranty gives users confidence in the product’s reliability for daily mobility needs.

Typical applications include primary traction power for electric wheelchairs and mobility scooters, backup power for portable medical devices in mobility platforms, and situations where robust, maintenance-free, deep-cycle performance is required. This replacement battery supports consistent acceleration, incline handling, and longer operating times between charges.

Buy your replacement IMC Heartway Rumba SR P4R U1 batteries today to restore range and reliability — a high-performance battery solution that offers long-lasting battery life and exceptional value.

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 : IMC Heartway Rumba
  • Manufacturer: SigmasTek
  • Product Type: Medical Equipment Batteries
  • Warranty: 12 Months
  • Bulk Orders: sales@batteryweb.com

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