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SigmasTek  |  SKU: BW-9002

Quickie S11 High-Performance Wheelchair Replacement Battery 72.06 lb

14% off
New arrival
Sale price $385.99 USD Regular price $447.99
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Factory fresh replacement batteries for Quickie S11 wheelchairs
100% compatible with Quickie S11 unit, requires 2 batteries (SP12-55 NB)
AGM technology with deep cycle design for long-lasting performance
Valve regulated, spill-proof, and certified for safety and reliability
Includes 1-year warranty and guaranteed superior energy density
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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 | 55 AH

Terminal Type

Nut & Bolt

Replacement Quickie S11 Battery — Compatible with Quickie S11

Upgrade your mobility with a reliable replacement battery built for the Quickie S11. These brand new Quickie S11 batteries deliver dependable performance and compatibility, engineered to restore range and responsiveness to your power chair. Designed for users who demand a high-performance battery that is also a long-lasting battery, this replacement is factory fresh and guaranteed to be 100% compatible with your Quickie S11 unit. Please note the Quickie S11 requires two SP12-55 NB (12 V 55 AH) batteries and you should reuse your existing cables and hardware to install the new units.

Key Specifications

  • Battery Model: SP12-55 NB
  • Voltage: 12 Volts
  • Capacity: 55 AH
  • Terminal Type: Nut & Bolt
  • Brand: SigmasTek
  • Technology: Absorbent Glass Mat (AGM) Technology
  • Usage: Designed for Deep Cycle Usage
  • Construction: Valve Regulated Spill Proof Construction
  • 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
  • Performance: Performance Guaranteed
  • Compatibility Note: Quickie S11 requires 2 batteries

Benefits

  • Durability & Safety — Built with AGM technology and valve regulated, spill-proof construction, this replacement battery offers safe, maintenance-free operation and robust performance in daily use.
  • Long Life & Deep Cycle Performance — Specifically designed for deep cycle usage, the SP12-55 NB provides consistent power delivery over many discharge/recharge cycles, making it a true long-lasting battery for mobility needs.
  • High Energy Density & Compact Power — With a power/volume ratio that yields unrivaled energy density, these batteries maximize available capacity in the same physical footprint, delivering a high-performance battery experience for your Quickie S11.
  • Certified Reliability — U.L. Recognized and CE Certified for quality and safety, backed by a performance guarantee and a 1 year warranty to give you confidence in every purchase.
  • Typical Applications — Ideal for electric wheelchairs, power chairs, mobility chairs, and mobility scooters. These batteries also serve well in related scenarios that require reliable DC power such as UPS systems, emergency power backups, and portable power tools where deep-cycle capacity is needed.

Ready to restore full mobility? Buy your Quickie S11 replacement battery today and enjoy superior runtime, proven reliability, and excellent value. Orders for in-stock items typically ship within 24 hours — purchase now to get the dependable, high-performance battery your Quickie S11 deserves.

Technical Specifications

Voltage12 Volts
Amp Hours55 AH
Terminal TypeNut & Bolt
Length (in.)9.04
Width (in.)5.45
Height (in.)8.15
Weight (lb.)72.0

Product Highlights

  • Brand Replacement : Quickie S11 Wheelchair
  • Manufacturer: SigmasTek
  • Product Type: Medical Equipment Batteries
  • Warranty: 12 Months
  • Bulk Orders: sales@batteryweb.com

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