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SigmasTek  |  SKU: BW-9971

Amigo EXT350 670000 Wheelchair Compatible Replacement Battery 49.45 lb

20% off
New arrival
Sale price $245.99 USD Regular price $307.99
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Factory fresh, high-quality replacement batteries for Amigo EXT350 670000
100% compatible with your Amigo EXT350 670000 wheelchair unit
Uses Absorbent Glass Mat (AGM) technology for deep cycle performance
Valve regulated, spill-proof design ensures safe and reliable use
Backed by a 1-year warranty and certified for safety and quality
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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

Amigo EXT350 670000 Replacement Wheelchair Batteries - Compatible with SP12-35 NB

Get back on the road with these high-quality replacement batteries designed for the Amigo EXT350 670000. The SP12-35 NB batteries are factory fresh and built to deliver the deep-cycle capacity and reliable energy density needed for power chairs and mobility scooters. When you need a dependable, long-lasting battery replacement that restores range and performance, these batteries offer an excellent balance of durability and value.

Key Specifications

  • Compatible Model: Amigo EXT350 670000
  • Required Quantity: 2 batteries (per unit)
  • Battery Model: SP12-35 NB
  • Voltage: 12 Volts
  • Capacity: 35 AH
  • Terminal: Nut & Bolt
  • Brand: SigmasTek
  • Technology: Absorbent Glass Mat (AGM) Technology
  • Usage: Designed For Deep Cycle Usage
  • Construction: Valve Regulated Spill Proof Construction
  • Performance: Power/Volume Ratio Yielding Unrivaled Energy Density
  • Certifications: U.L. Recognized and CE Certified
  • Condition: Brand New, Factory Fresh
  • Warranty: 1 Year Warranty
  • Performance Guaranteed

Benefits

  • Durability: The valve-regulated AGM design and robust construction protect against spills and physical stress, making these batteries well-suited for everyday mobility use and transport.
  • Long Life: Tailored for deep-cycle performance, SP12-35 NB batteries provide consistent output throughout numerous discharge/charge cycles, offering a long-lasting battery solution that reduces the need for frequent replacements.
  • High Performance: With an optimized power-to-volume ratio and high energy density, these batteries maintain steady voltage under load to ensure reliable operation of motors and controllers—an essential trait of any high-performance battery.
  • Maintenance-Free: AGM construction eliminates the need for watering and minimizes maintenance demands, making installation and upkeep straightforward for users and technicians alike.
  • Typical Applications: Ideal for electric wheelchairs, power chairs, mobility chairs, and mobility scooters, and also applicable for UPS backup, emergency power, and portable tools where a dependable 12V deep-cycle battery is required.
  • Safety & Compliance: U.L. recognition and CE certification indicate that these batteries meet recognized safety standards for use in mobility devices.

Ready to restore reliable range and performance to your Amigo EXT350 670000? Order your replacement battery pair today for fast shipping and the assurance of a brand new, warranted, high-quality 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.)49.4

Product Highlights

  • Brand Replacement : Amigo EXT350 670000
  • Manufacturer: SigmasTek
  • Product Type: Medical Equipment Batteries
  • Warranty: 12 Months
  • Bulk Orders: sales@batteryweb.com

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