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SigmasTek  |  SKU: BW-9590

Karma Medical Products KS-646 High Performance Wheelchair Replacement Battery 49.45 lb

17% off
New arrival
Sale price $245.99 USD Regular price $295.99
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Factory fresh Karma Medical Products KS-646 replacement batteries
100% compatible with Karma Medical Products KS-646 wheelchair units
Absorbent Glass Mat (AGM) technology for deep cycle performance
Valve regulated, spill-proof design for safe and reliable use
Includes 1-year warranty and CE/U.L. certifications for peace of mind
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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

Karma Medical Products KS-646 - Replacement Karma Medical Products KS-646 Wheelchair Batteries

Maintain mobility independence with these brand-new replacement batteries for the Karma Medical Products KS-646 wheelchair. Designed for deep cycle applications and built to deliver consistent, reliable power, this high-performance replacement battery set helps ensure your KS-646 continues to provide dependable daily performance.

Key Specifications

  • Includes: Requires 2 batteries for the KS-646 configuration
  • Battery Model: SP12-35 NB
  • Voltage: 12 V
  • Capacity: 35 AH (Amp-hours)
  • Terminal Type: Nut & Bolt
  • Technology: Absorbent Glass Mat (AGM) Technology
  • Usage: Designed for Deep Cycle Usage
  • Construction: Valve Regulated Spill Proof Construction
  • Performance Feature: Power/Volume Ratio Yielding Unrivaled Energy Density
  • Certifications: U.L. Recognized and CE Certified
  • Condition: Brand New, Factory Fresh
  • Performance: Performance Guaranteed
  • Warranty: 1 Year Warranty
  • Brand: Karma Medical Products

Benefits

  • Durability: Valve-regulated, spill-proof AGM construction and robust casing stand up to vibrations and daily use in mobility environments.
  • Long Life: Designed for repeated deep-cycle charging, these batteries provide extended operational life so you spend less time replacing batteries and more time on the move.
  • High Performance: Superior energy density and efficient power delivery maintain consistent speed, maneuverability, and runtime for your KS-646.
  • Safety & Compliance: U.L. recognition and CE certification confirm safe and reliable performance in consumer mobility and medical-adjacent settings.
  • Typical Applications: Primarily built for electric wheelchairs, power chairs, mobility chairs, and mobility scooters, and suitable for related UPS and emergency power roles when needed.
  • Easy Installation: These replacement batteries are 100% compatible with the KS-646—use your existing cables and hardware for a quick swap.

Get back to dependable mobility—order the replacement Karma Medical Products KS-646 battery pair today for a proven, long-lasting battery solution that keeps you moving with confidence.

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 : Karma Medical Products
  • Manufacturer: SigmasTek
  • Product Type: Medical Equipment Batteries
  • Warranty: 12 Months
  • Bulk Orders: sales@batteryweb.com

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