Fortress Scientific 2001LX U1 Wheelchair High-Performance Replacement Battery 49.45 lb
— Ready to ship immediately
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.
Fortress Scientific 2001LX U1 Wheelchair High-Performance Replacement Battery is backordered and will ship as soon as it is back in stock.
Let customers speak for us
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
✉ sales@batteryweb.com
Battery Care Tips
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
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
⚠️ 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
SP12-35 NB (12V 35AH) Replacement Batteries for Fortress Scientific 2001LX U1 Wheelchair
These new SP12-35 NB (12V 35AH) replacement batteries are manufactured to be fully compatible with the Fortress Scientific 2001LX U1 wheelchair. Factory-fresh and engineered for deep-cycle use, they deliver dependable, sustained power and the rugged reliability mobility users require. Choose these high-performance batteries to restore range and reliability to your mobility device.
Key Specifications
- Model: SP12-35 NB (12V 35 AH)
- Compatible with: Fortress Scientific 2001LX U1 (requires 2 batteries)
- Battery Type: Absorbent Glass Mat (AGM) Technology
- Usage: Designed For Deep Cycle Usage
- Construction: Valve Regulated Spill Proof Construction
- Performance Feature: 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
- Brand: SigmasTek
- Terminal: Nut & Bolt
- Voltage: 12 Volts
- Capacity: 35 AH
Benefits
These SP12-35 NB batteries provide a long-lasting battery solution for wheelchairs and mobility platforms. Designed for repeated deep-cycle use, they offer enhanced cycle life and dependable discharge characteristics that help maintain performance across daily trips and extended use. The valve-regulated, spill-proof design improves safety and reduces maintenance, while AGM construction enhances vibration tolerance and charge acceptance.
As a high-performance battery option, the SP12-35 NB maintains steady power delivery even under heavy loads, providing users with reliable range and consistent speed control. The excellent power-to-volume ratio delivers more usable energy in a compact package — a crucial benefit for electric wheelchairs, power chairs, mobility chairs, and mobility scooters. These batteries are U.L. and CE recognized and come with a 1 Year Warranty and performance guarantee.
Please note: the Fortress Scientific 2001LX U1 requires two SP12-35 NB batteries and you must reuse the existing cables and hardware from your original configuration for correct installation. These replacement batteries are ideal for technicians, caregivers, and users seeking a dependable upgrade or direct replacement.
Restore dependable mobility — order the SP12-35 NB (12V 35AH) replacement batteries for the Fortress Scientific 2001LX U1 now and enjoy improved power, long life, and reliable performance.
Technical Specifications
Product Highlights
- Brand Replacement : Fortress Scientific 2001LX
- Manufacturer: SigmasTek
- Product Type: Medical Equipment Batteries
- Warranty: 12 Months
- Bulk Orders: sales@batteryweb.com
Payment & Security
Payment methods
Your payment information is processed securely. We do not store credit card details nor have access to your credit card information.
