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SigmasTek  |  SKU: BW-7242

Scag Power Equipment STHM-20KH High Performance Lawn Mower Replacement Battery 24.72 lb

19% off
New arrival
Sale price $122.99 USD Regular price $151.99
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Factory fresh replacement battery for Scag Power Equipment STHM-20KH Lawn Mower
Uses Absorbent Glass Mat (AGM) technology for durability and deep cycle performance
Valve regulated, spill-proof design ensures safe, maintenance-free operation
High energy density delivers reliable power and long-lasting performance
Backed by U.L. recognition, CE certification, and a 1-year warranty for peace of mind
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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.

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Volts & Amps

12 Volts | 35 AH

Terminal Type

Nut & Bolt

Replacement Scag Power Equipment STHM-20KH Lawn Mower Battery - Compatible with STHM-20KH

Keep your Scag Power Equipment STHM-20KH running at peak performance with this factory-fresh replacement battery. Purpose-built for compatibility with the STHM-20KH model, this SP12-35 NB (12 V 35 AH) unit provides the dependable deep-cycle power and spill-proof reliability required for lawn care professionals and homeowners alike. As a high-performance battery featuring AGM technology and a compact, high energy density design, it offers the long-lasting battery life you need for extended mowing sessions and seasonal use.

Key Specifications

  • Compatible Model: Scag Power Equipment STHM-20KH Lawn Mower
  • Battery Model: SP12-35 NB
  • Voltage: 12 V
  • Capacity: 35 AH
  • Terminal Type: Nut & Bolt
  • Technology: Absorbent Glass Mat (AGM)
  • Construction: Valve Regulated Spill Proof
  • Designed For: Deep Cycle Usage
  • Certifications: U.L. Recognized and CE Certified
  • Condition: Brand New, Factory Fresh
  • Warranty: 1 Year Warranty
  • Performance: Performance Guaranteed

Benefits

This replacement battery is built for strength and longevity. AGM technology provides excellent energy density and resistance to vibration, delivering steady current for ignition, electric PTO, and accessories. As a long-lasting battery suited for deep-cycle operation, it maintains performance across numerous charge cycles and supports frequent use without premature capacity loss. The valve-regulated, spill-proof design makes it safer and easier to handle than traditional flooded batteries, reducing maintenance and leak risk.

Durability: Robust internal layout resists impact and vibration commonly encountered on mowers. Long life: Deep-cycle focus yields extended usable lifespan for frequent mowing demands. High performance: Consistent voltage under load ensures reliable starts and continuous operation.

  • Typical applications: Commercial and residential mowers, garden tractors, utility equipment
  • Also suitable for: Emergency backup (UPS), standby power, portable tools requiring 12 V 35 AH capacity

Ready to upgrade? Purchase this replacement Scag Power Equipment STHM-20KH SP12-35 NB high-performance battery today to restore dependable starting and long-lasting power to your mower. Orders for in-stock batteries typically ship within 24 hours — buy now and get back to work with confidence.

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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