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SigmasTek  |  SKU: BW-7243

Scag Power Equipment STHM-18KH High Performance Lawn Mower Replacement Battery 24.72 lb

23% off
New arrival
Sale price $122.99 USD Regular price $159.99
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Factory fresh replacement battery for Scag Power Equipment STHM-18KH Lawn Mower
Uses advanced Absorbent Glass Mat (AGM) technology for durability
Valve regulated, spill-proof design ensures safe operation
High energy density delivers superior power and long life
Comes with 1-year warranty and guaranteed performance
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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

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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

Replacement Scag Power Equipment STHM-18KH Lawn Mower Battery (STHM-18KH Compatible)

This replacement battery is designed specifically for the Scag Power Equipment STHM-18KH lawn mower, delivering reliable compatibility, consistent performance, and the durability you need for demanding outdoor equipment. Built to OEM-equivalent standards, this factory-fresh battery offers the dependable power profile required by your STHM-18KH so you can start and operate your mower with confidence. If you need a high-quality replacement battery that balances safe, maintenance-free operation with deep cycle capability, this STHM-18KH replacement is an excellent choice.

Key Specifications

  • Compatible Model: Scag Power Equipment STHM-18KH
  • Required Battery Part: SP12-35 NB (12 V 35 AH)
  • Voltage: 12 Volts
  • Capacity: 35 AH (Amp-hours)
  • Terminal Type: Nut & Bolt
  • Battery Technology: Absorbent Glass Mat (AGM)
  • Cycle Type: Designed for Deep Cycle Usage
  • Construction: Valve Regulated Spill Proof
  • Energy Density: High power/volume ratio for unrivaled energy density
  • Certifications: U.L. Recognized and CE Certified
  • Condition: Brand New, Factory Fresh
  • Warranty: 1 Year Warranty
  • Performance: Performance Guaranteed

Benefits

This replacement battery delivers the long-lasting battery life and resilient performance expected for heavy-duty lawn and garden equipment. Using advanced AGM technology, it provides superior vibration resistance, reduced self-discharge, and maintenance-free operation—ideal for seasonal use and continuous service. Designed for deep cycle usage, the battery supports repeated charge/discharge cycles without rapid capacity loss, making it a dependable high-performance battery for start-up power and electrical accessories.

Durability is built into the valve regulated, spill-proof construction which keeps the battery safe in the rugged conditions typical to outdoor equipment. U.L. recognition and CE certification confirm compliance with safety and quality benchmarks, while the 1 year warranty and the manufacturer’s performance guarantee provide peace of mind. Typical applications include primary starting power for lawn mowers, reserve power for on-board electronics, and supportive power for accessories and attachments.

Because this is a true replacement battery matched to the STHM-18KH specification (SP12-35 NB), installation uses your existing cables and hardware—simply swap the old unit for this factory-fresh battery for immediate improvement in reliability and start-up performance. Whether you need dependable seasonal readiness or continuous everyday use, this high-performance battery is built to last.

Ready to upgrade? Purchase this replacement Scag Power Equipment STHM-18KH battery today and enjoy a long-lasting battery that restores dependable power to your mower. Order now to get fast shipping and reliable support.

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 : Scag Power Equipment
  • Manufacturer: SigmasTek
  • Product Type: Home Power Backup
  • Warranty: 12 Months
  • Bulk Orders: sales@batteryweb.com

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