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SigmasTek  |  SKU: BW-10192

Everest & Jennings Marathon Kids Wheelchair High Performance Replacement Battery 24.72 lb

15% off
New arrival
Sale price $122.99 USD Regular price $143.99
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Factory fresh replacement battery for Everest & Jennings Marathon Kids wheelchair
100% compatible with original Everest & Jennings Marathon Kids unit
Uses Absorbent Glass Mat (AGM) technology for deep cycle performance
Valve regulated, spill-proof design ensures safety and reliability
Includes 1-year warranty for guaranteed long-lasting power
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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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🔹 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 Everest & Jennings Marathon Kids Battery — SP12-35 NB (12V 35AH)

Upgrade your Everest & Jennings Marathon Kids wheelchair with this factory-fresh, 100% compatible replacement battery. Built for dependable performance and reliable power delivery, this high-performance battery is engineered to restore mobility and confidence. Designed to match the original SP12-35 NB specification, this replacement battery delivers the deep-cycle capability and rugged construction your Marathon Kids powerchair needs for daily use.

Key Specifications

  • Model: SP12-35 NB
  • Compatible With: Everest & Jennings Marathon Kids
  • Voltage: 12 Volts
  • Capacity: 35 AH (Amp-Hours)
  • Terminal Type: Nut & Bolt
  • Battery Technology: Absorbent Glass Mat (AGM)
  • Usage Type: Designed for Deep Cycle Usage
  • Construction: Valve Regulated Spill Proof
  • Certifications: U.L. Recognized and CE Certified
  • Condition: Brand New, Factory Fresh
  • Warranty: 1 Year Warranty
  • Brand: SigmasTek
  • Quantity Required: 1 battery (per unit)

Benefits

This replacement battery delivers long-lasting battery life and the consistent output needed for mobility devices. AGM construction provides low internal resistance, superior charge acceptance, and vibration resistance—ideal for the stop-and-go demands of power chairs. As a high-performance battery, it is engineered for deep cycle use, providing repeated discharge and recharge cycles without performance degradation, so you get more dependable runtime between charges.

Safety and reliability are built in: valve-regulated spill proof construction reduces maintenance needs and prevents leakage, while U.L. recognition and CE certification confirm manufacturing standards and regulatory compliance. Rugged design and a proven power-to-volume ratio mean this battery offers exceptional energy density for compact installations. Whether you use it in electric wheelchairs, power chairs, mobility chairs, or mobility scooters, this replacement battery gives trusted performance in real-world applications.

Installation is straightforward—this replacement matches the SP12-35 NB specifications exactly. Please reuse the existing cables and hardware from your original configuration for proper connection. The battery is performance guaranteed and backed by a one-year warranty for added peace of mind.

Buy this replacement Everest & Jennings Marathon Kids SP12-35 NB high-performance battery today and restore the reliable power your mobility device requires. Orders for in-stock items typically ship within 24 hours — purchase now for a long-lasting battery solution.

Technical Specifications

Voltage12 Volts
Amp Hours35 AH
Terminal TypeNut & Bolt
Length (in.)7.72
Width (in.)5.14
Height (in.)6.22
Weight (lb.)24.7

Product Highlights

  • Brand Replacement : Everest & Jennings
  • Manufacturer: SigmasTek
  • Product Type: Medical Equipment Batteries
  • Warranty: 12 Months
  • Bulk Orders: sales@batteryweb.com

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