Welcome to our store. Your trusted source for batteries and power solutions. Learn more

For support or quotes: sales@batteryweb.com

WELCOME5
SigmasTek  |  SKU: BW-9480

Ortho-Kinetics Lark 3&4 Wheelchair Compatible Replacement Battery 49.45 lb

14% off
New arrival
Sale price $245.99 USD Regular price $285.99
Shipping calculated at checkout.
Factory fresh, brand new replacement batteries for reliable performance
100% compatible with Ortho-Kinetics Lark 3&4 wheelchairs
AGM technology with valve regulated, spill-proof design for safety
Deep cycle usage ensures long-lasting power and durability
U.L. recognized, CE certified, with a 1-year warranty included
In stock

— Ready to ship immediately

Free shipping

Visa Mastercard American Express PayPal Apple Pay Google Pay Shop Pay Discover Klarna Afterpay Stripe

Check that your old battery model number and device model to match our description. This makes sure they work together.


We ship your order same day if you buy it before 4 PM EST.

Send Your Battery Photo

Expert Technician Help

Snap a photo or video of your battery and send it to us. We'll identify the exact replacement—fast and hassle-free. Our team has helped thousands of customers find the right battery quickly and easily.

POST YOUR BATTERY IMAGE
Product & Solutions Expert

Product & Solutions Expert

✉ sales@batteryweb.com

🔹 10+ Years Battery Experience 🔹 Fast & Accurate Identification

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.

Disclaimer

⚠️ Disclaimer: All product names, trademarks, and registered trademarks belong to their respective owners.

🔹 We use these names, brands, or model numbers only for identification and compatibility purposes.


Volts & Amps

12 Volts | 35 AH

Terminal Type

Nut & Bolt

Replacement Ortho-Kinetics Lark 3&4 Wheelchair Batteries — Compatible with Ortho-Kinetics Lark 3&4

Restore full mobility with our brand-new replacement battery option for the Ortho-Kinetics Lark 3&4. These high-quality, factory-fresh batteries are 100% compatible with the Ortho-Kinetics Lark 3&4 and provide the consistent, long-lasting battery power you need for daily use. The Lark 3&4 requires two SP12-35 NB (12 V 35 AH) batteries — these replacement units match the original specifications and performance characteristics. Remember to reuse your existing cables and hardware when installing.

Key Specifications

  • Model Compatibility: Ortho-Kinetics Lark 3&4
  • Battery Part Number: SP12-35 NB
  • Voltage: 12 Volts
  • Capacity: 35 AH (Amp Hours)
  • Battery Technology: Absorbent Glass Mat (AGM)
  • Usage Type: 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
  • Warranty: 1 Year Warranty
  • Terminal Type: Nut & Bolt (NB)
  • Brand: SigmasTek
  • Quantity Required: 2 batteries per Ortho-Kinetics Lark 3&4 unit

Benefits

  • Durability: AGM and valve-regulated construction deliver a robust, spill-proof battery that tolerates daily use in mobility environments.
  • Long Life: Deep-cycle design and high energy density ensure extended service life and reliable runtime between charges.
  • High Performance: Engineered to supply consistent power to motors and control electronics, making it a high-performance battery choice for mobility equipment.
  • Safety & Certification: U.L. recognition and CE certification support safe use in medical and mobility applications.
  • Typical Applications: Ideally suited for electric wheelchairs, power chairs, mobility chairs, and mobility scooters requiring consistent, long-lasting battery power.
  • Direct Replacement: Exact match for the original batteries simplifies replacement when reusing original cables and mounting hardware.

Ready to regain reliable mobility? Purchase your replacement Ortho-Kinetics Lark 3&4 batteries today and benefit from a long-lasting, high-performance battery solution with safety certifications and a 1-year warranty. Order now and power your mobility 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 : Ortho-Kinetics Lark 3&4
  • Manufacturer: SigmasTek
  • Product Type: Medical Equipment Batteries
  • Warranty: 12 Months
  • Bulk Orders: sales@batteryweb.com

Payment & Security

Payment methods

  • American Express
  • Apple Pay
  • Bancontact
  • Diners Club
  • Discover
  • Google Pay
  • Mastercard
  • PayPal
  • Shop Pay
  • Visa

Your payment information is processed securely. We do not store credit card details nor have access to your credit card information.