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SigmasTek  |  SKU: BW-9468

Ortho-Kinetics Sierra Wheelchair Compatible Replacement Battery 49.45 lb

25% off
New arrival
Sale price $245.99 USD Regular price $327.99
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Factory fresh, high-quality replacement batteries for Ortho-Kinetics Sierra wheelchairs
100% compatible with Ortho-Kinetics Sierra units using SP12-35 NB (12 V 35 AH) specification
Advanced AGM technology ensures deep cycle performance and spill-proof safety
U.L. recognized and CE certified for reliable, guaranteed performance
Includes 1-year warranty and fast shipping for peace of mind and convenience
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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

Replacement Ortho-Kinetics Sierra Battery — SP12-35 NB (Compatible with Ortho-Kinetics Sierra)

Restore peak performance to your Ortho-Kinetics Sierra with this factory-fresh replacement battery. Designed for 100% compatibility with the Sierra unit, this replacement battery provides the reliable power and consistent performance you expect from a quality replacement battery. If your Sierra requires two SP12-35 NB batteries (12 Volts 35 AH), these units match the original electrical and physical specifications to ensure a straightforward swap and dependable operation.

Key Specifications

  • Model Compatibility: Ortho-Kinetics Sierra (requires 2 batteries, SP12-35 NB)
  • Voltage: 12 Volts
  • Capacity: 35 AH
  • Terminal Type: NB (Nut & Bolt)
  • Technology: Absorbent Glass Mat (AGM)
  • Usage Type: Designed for Deep Cycle Usage
  • Construction: Valve Regulated, Spill Proof
  • Energy Characteristics: Power/Volume Ratio Yielding Unrivaled Energy Density
  • Certifications: U.L. Recognized and CE Certified
  • Condition: Brand New, Factory Fresh
  • Warranty: 1 Year Warranty
  • Brand: SigmasTek
  • Performance: Performance Guaranteed

Benefits

This replacement battery offers excellent durability and long life thanks to AGM technology and a design optimized for deep cycle use. As a high-performance battery, it provides steady current delivery under load and sustains capacity across many charge cycles, making it an ideal choice for daily mobility tasks. The valve-regulated, spill-proof construction ensures safety and maintenance-free operation—especially important in medical and personal mobility settings.

Durability: The rugged construction resists vibration and shock while protecting internal plates, which helps reduce premature failure. Long life: Designed to tolerate repeated deep discharges, delivering a long-lasting battery experience that reduces replacement frequency. High performance: Superior energy density and regulated construction translate to reliable start-up and consistent torque in power chairs and scooters.

Typical uses include electric wheelchairs, power chairs, mobility chairs, and mobility scooters, but this style of battery is also suitable for backup roles such as UPS systems, emergency power supplies, and portable tools that require a dependable power source. Whether you need a direct replacement or a spare for travel, this unit is tailored for dependable service.

Don’t wait—order your replacement Ortho-Kinetics Sierra SP12-35 NB battery today to ensure uninterrupted mobility and trustworthy performance. Purchase now for fast shipping and dependable power.

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 : Ortho-Kinetics Sierra Wheelchair
  • Manufacturer: SigmasTek
  • Product Type: Medical Equipment Batteries
  • Warranty: 12 Months
  • Bulk Orders: sales@batteryweb.com

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