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SigmasTek  |  SKU: BW-10761

Theradyne Investigator-Power T-Bird High Performance Wheelchair Replacement Battery 49.45 lb

24% off
New arrival
Sale price $165.64 USD Regular price $218.81
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Factory fresh replacement batteries for Theradyne Investigator-Power T-Bird wheelchairs
Uses Absorbent Glass Mat (AGM) technology for deep cycle performance
Valve regulated, spill-proof design ensures safety and reliability
High energy density delivers longer power and improved battery life
U.L. Recognized, CE Certified, with 1-year warranty for guaranteed quality
In stock

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


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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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⚠️ 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

Theradyne Investigator-Power T-Bird Batteries - SP12-35 NB (Compatible with Theradyne Investigator-Power T-Bird)

These brand new replacement batteries are designed to be fully compatible with the Theradyne Investigator-Power T-Bird and deliver the robust performance required by power chairs and mobility systems. Sold as a matched pair to meet the T-Bird’s requirement, these AGM deep-cycle batteries provide reliable energy density, strong starting power, and proven durability. If you need a dependable, long-lasting battery solution for your mobility device, these high-performance batteries are an excellent choice.

Key Specifications

  • Compatible Model: Theradyne Investigator-Power T-Bird
  • Battery Part: SP12-35 NB
  • Quantity Required: 2 batteries
  • Voltage: 12 Volts
  • Capacity: 35 AH
  • Terminal Type: Nut & Bolt
  • Technology: Absorbent Glass Mat (AGM) Technology
  • Designed For Deep Cycle Usage
  • Valve Regulated Spill Proof Construction
  • Power/Volume Ratio Yielding Unrivaled Energy Density
  • U.L. Recognized and CE Certified
  • Performance Guaranteed
  • Condition: Brand New, Factory Fresh
  • Warranty: 1 Year Warranty
  • Brand: SigmasTek
  • Installation Note: You must use all existing cables and hardware from your original configuration to connect the new wheelchair batteries

Benefits

  • Durability: The AGM design and valve-regulated construction resist spills and vibration, providing a rugged, maintenance-free power source ideal for mobility use and frequent transport.
  • Long Life: Built for deep cycle performance, these long-lasting batteries support repeated charge cycles and sustained use, reducing replacement frequency and total ownership cost.
  • High Performance: High energy density and superior starting power give reliable acceleration, grade-climbing ability, and consistent range for power chairs and mobility scooters.
  • Certified Safety: U.L. Recognition and CE Certification ensure compliance with recognized safety standards for medical and mobility systems.
  • Versatile Applications: Optimized for Electric Wheelchairs, Power Chairs, Mobility Chairs, and Mobility Scooters, these batteries are also useful in UPS backup roles, emergency power situations, and as power sources for portable tools and equipment that accept 12V 35AH modules.
  • Simple Installation: Supplied as the correct pair for Theradyne Investigator-Power T-Bird, they install using your device’s existing cables and hardware for an efficient replacement process.

Replace both batteries in your Theradyne Investigator-Power T-Bird with this reliable SP12-35 NB pair today. Purchase now to get a high-performance, long-lasting battery solution backed by a one-year warranty and prompt shipping—restore full power and confidence to your mobility device.

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 : Theradyne Investigator-Power T-Bird
  • Manufacturer: SigmasTek
  • Product Type: Medical Equipment Batteries
  • Warranty: 12 Months
  • Bulk Orders: sales@batteryweb.com

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