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SigmasTek  |  SKU: BW-7075

Wheelhorse 300/400 Series Lawn Mower High Performance Replacement Battery 24.72 lb

21% off
New arrival
Sale price $122.99 USD Regular price $154.99
Shipping calculated at checkout.
Factory fresh, high-quality replacement battery for Wheelhorse 300/400 Series
100% compatible with original Wheelhorse 300/400 Series Lawn Mower models
Features Absorbent Glass Mat (AGM) technology for deep cycle usage
Valve regulated, spill-proof design ensures safe and reliable operation
Backed by a 1-year warranty with U.L. recognized and CE certified 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

Wheelhorse 300/400 Series Lawn Mower Battery (Replacement) — Compatible with Wheelhorse 300/400 Series

Keep your Wheelhorse 300/400 Series Lawn Mower ready for the toughest jobs with this brand new replacement battery. Designed for reliable starting and sustained performance, this battery offers the durability and consistent output your mower needs. Whether replacing an old unit or upgrading for better runtime, this battery is engineered to meet the demands of regular mowing and accessory power use.

Key Specifications

  • Model: SP12-35 NB
  • Voltage: 12 Volts
  • Amp-Hours: 35 AH
  • Terminal Type: Nut & Bolt
  • Technology: Absorbent Glass Mat (AGM)
  • Designed For: Deep Cycle Usage
  • Construction: Valve Regulated, Spill Proof
  • 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
  • Brand: Wheelhorse

Benefits

This replacement battery brings proven durability through AGM construction and valve-regulated, spill-proof sealing. As a long-lasting battery option, it tolerates deep cycle use and repeated charging with reduced capacity loss over time. The design prioritizes a high power-to-volume ratio for more usable energy in a compact footprint, enabling excellent runtime without sacrificing space or adding weight.

Expect dependable starting even after periods of non-use and steady performance when running accessories and blade systems. As a high-performance battery, the SP12-35 NB is suitable for a variety of roles beyond lawn mowing: back-up power for small UPS units, emergency power for low-voltage systems, and powering portable tools and devices on the worksite. Its ruggedness makes it ideal for outdoor and equipment applications where vibration and repeated cycles are common.

Installation is straightforward—retain your original cables and hardware and connect using the nut & bolt terminals. Safety and quality are supported by U.L. recognition and CE certification, and the battery ships brand new with a one year warranty to protect your purchase.

Ready to replace your old battery? Purchase this SP12-35 NB replacement battery today and restore high-performance, long-lasting battery power to your Wheelhorse 300/400 Series Lawn Mower. Order now for fast shipping and reliable service.

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 : Wheelhorse 300/400 Series
  • Manufacturer: SigmasTek
  • Product Type: Home Power Backup
  • Warranty: 12 Months
  • Bulk Orders: sales@batteryweb.com

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