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SigmasTek  |  SKU: BW-7082

Ultra 20HP 46" Lawn Mower High Performance Replacement Battery 24.72 lb

17% off
New arrival
Sale price $122.99 USD Regular price $148.99
Shipping calculated at checkout.
Factory fresh Ultra 20HP 46" Lawn Mower battery with high-quality build
100% compatible replacement using existing cables and hardware
Absorbent Glass Mat (AGM) technology for enhanced durability
Valve regulated, spill-proof design for safe and reliable use
Includes 1-year warranty ensuring guaranteed performance
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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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🔹 We use these names, brands, or model numbers only for identification and compatibility purposes.


Volts & Amps

12 Volts | 35 AH

Terminal Type

Nut & Bolt

Ultra 20HP 46" Lawn Mower Battery (Replacement) - Compatible with Ultra 20HP 46"

Ensure consistent performance from your Ultra 20HP 46" Lawn Mower with this factory-fresh replacement battery. The SP12-35 NB is specifically designed to be 100% compatible with the Ultra 20HP 46" Lawn Mower and delivers reliable deep cycle performance through AGM technology. If you are searching for a reliable replacement battery that offers safe, spill-proof operation and long-lasting power, this high-performance battery is an excellent match for your mowing needs.

Key Specifications

  • Compatible Model: Ultra 20HP 46" Lawn Mower
  • Battery Model: SP12-35 NB
  • Voltage: 12 Volts
  • Capacity: 35 AH
  • Terminal Type: Nut & Bolt
  • Technology: Absorbent Glass Mat (AGM) Technology
  • Design: 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
  • Performance: Performance Guaranteed
  • Warranty: 1 Year Warranty
  • Quantity Required: 1 battery

Benefits

This replacement battery is engineered to offer durable, consistent performance. The AGM construction and valve-regulated design deliver spill-proof safety and excellent resistance to vibration—critical for outdoor equipment like lawn mowers. As a long-lasting battery optimized for deep cycle service, it provides reliable runtime and strong starts, reducing the need for frequent replacements and maintenance.

  • Durability: Robust AGM, valve-regulated build designed to withstand the rigors of frequent mower use.
  • Long Life: Intended for deep cycle workloads to extend usable life and lower total ownership cost.
  • High Performance: Superior power-to-volume characteristics enable efficient energy delivery for extended mowing sessions.
  • Applications: Perfect for lawn mowers and also applicable to UPS systems, emergency power backup, and various power tools that require a dependable 12V 35AH source.

Installation is straightforward—use your original cables and hardware. In-stock items typically ship within 24 hours. For assistance, contact customer service at or consult our Battery Buying Guide. With U.L. recognition, CE certification, and a 1 Year Warranty, this replacement Ultra 20HP 46" battery is a dependable choice for keeping your mower running smoothly.

Ready to replace your battery? Buy this high-performance, long-lasting replacement battery for the Ultra 20HP 46" Lawn Mower today and enjoy reliable power with fast shipping.

Technical Specifications

Voltage12 Volts
Amp Hours35 AH
Terminal TypeNut & Bolt
Length (in.)7.72
Width (in.)5.14
Height (in.)6.22
Weight (lb.)24.7

Product Highlights

  • Brand Replacement : Ultra 20HP 46"
  • Manufacturer: SigmasTek
  • Product Type: Home Power Backup
  • Warranty: 12 Months
  • Bulk Orders: sales@batteryweb.com

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