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SigmasTek  |  SKU: BW-9476

Ortho-Kinetics Lark Wheelchair Compatible Replacement Battery 49.45 lb

14% off
New arrival
Sale price $245.99 USD Regular price $285.99
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Factory fresh replacement batteries for Ortho-Kinetics Lark wheelchairs
AGM technology ensures deep cycle performance and durability
Valve regulated, spill-proof design for safe and reliable use
100% compatible with original Ortho-Kinetics Lark hardware and cables
Includes 1-year warranty and guaranteed high performance
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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 | 35 AH

Terminal Type

Nut & Bolt

SigmasTek SP12-35 NB (12 V 35 AH) Batteries — Compatible with Ortho-Kinetics Lark

Upgrade or replace the batteries in your Ortho-Kinetics Lark with the SigmasTek SP12-35 NB replacement batteries. These factory-fresh, 12 V 35 AH units are designed to be 100% compatible with the Ortho-Kinetics Lark and provide the deep-cycle performance and long-lasting battery life required for daily mobility use. Built with AGM technology and valve-regulated safety, they deliver consistent power and durability you can rely on.

Key Specifications

  • Model: SP12-35 NB
  • Voltage: 12 Volts
  • Capacity: 35 AH
  • Terminal Type: NB (Nut & Bolt)
  • Technology: Absorbent Glass Mat (AGM)
  • Design: Valve Regulated Spill Proof Construction
  • Intended Use: Designed For Deep Cycle Usage
  • Certifications: U.L. Recognized and CE Certified
  • Condition: Brand New, Factory Fresh
  • Warranty: 1 Year Warranty
  • Brand: SigmasTek
  • Performance: Performance Guaranteed

Benefits

These SigmasTek replacement batteries deliver long-term value as a high-performance battery solution for mobility systems. AGM construction offers improved charge acceptance, minimal maintenance, and reliable operation over many cycles, making this a long-lasting battery choice for Ortho-Kinetics Lark owners. Valve-regulated, spill-proof design enhances safety and usability in everyday environments.

The SP12-35 NB batteries are particularly well-suited for electric wheelchairs, power chairs, mobility chairs, and mobility scooters, providing the energy density needed for extended range and consistent torque from motors under load. Additionally, their deep-cycle design makes them appropriate for other applications like small UPS backups, emergency power supplies, and portable power packs where a robust 12V 35Ah source is beneficial.

With U.L. recognition and CE certification, these batteries meet recognized safety and quality benchmarks. The included 1 year warranty and performance guarantee give peace of mind for caregivers, mobility technicians, and users investing in replacements. Remember that the Ortho-Kinetics Lark requires two batteries and you should reuse your existing cables and hardware to complete the installation.

Buy your replacement Ortho-Kinetics Lark SP12-35 NB batteries today — a high-performance, long-lasting battery option from SigmasTek that restores mobility and provides dependable power when you need it most.

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

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