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SigmasTek  |  SKU: BW-7674

Grass Hopper 618 High Performance Lawn Mower Replacement Battery 24.72 lb

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New arrival
Sale price $122.99 USD Regular price $135.99
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Factory fresh replacement battery for Grass Hopper 618 Lawn Mower
100% compatible with original Grass Hopper 618 model
Uses advanced AGM technology for deep cycle performance
Valve regulated, spill-proof design ensures safety and reliability
Comes with a 1-year warranty for 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 Grass Hopper 618 Lawn Mower Battery — Compatible with Grass Hopper 618 (SP12-35 NB)

Keep your Grass Hopper 618 lawn mower performing at its best with this factory-fresh replacement battery. Engineered as a drop-in SP12-35 NB (12 V 35 AH) replacement, this unit combines AGM technology and valve-regulated, spill-proof construction for reliable power and extended service life. Whether you’re tackling routine yard maintenance or extended work sessions, this high-performance battery delivers the consistent output and durability your Grass Hopper 618 needs.

Key Specifications

  • Compatible Model: Grass Hopper 618 Lawn Mower
  • Replacement Model Number: SP12-35 NB
  • Voltage: 12 Volts
  • Capacity: 35 AH
  • Quantity Required: 1 battery
  • 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
  • Performance: Performance Guaranteed
  • Warranty: 1 Year Warranty

Benefits

  • Robust Durability: The AGM design and valve-regulated sealed construction reduce maintenance and protect against leaks, making this replacement battery durable enough for demanding lawn mower operation.
  • Extended Runtime: Built for deep cycle usage, the battery delivers sustained capacity and a long operational life — a true long-lasting battery ideal for regular mowing schedules.
  • Dependable Performance: This high-performance battery provides consistent voltage and strong cranking power for reliable starts and steady operation under load.
  • Certified Safety: U.L. recognition and CE certification provide confidence in the battery’s build quality and safety standards.
  • Versatile Applications: While optimized for the Grass Hopper 618 lawn mower, this 12 V 35 AH unit is also suitable for similar outdoor equipment and applications that require dependable deep-cycle power.
  • Simple Swap-In Installation: This SP12-35 NB replacement uses your existing cables and hardware and connects via nut & bolt terminals for a hassle-free install.

Restore performance with this replacement battery and enjoy the combination of AGM reliability and high energy density in a brand new, factory fresh unit. Order today to get a high-performance battery for your Grass Hopper 618 with fast shipping and a 1 year warranty — a smart choice for a long-lasting battery solution.

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 : Grass Hopper 618
  • Manufacturer: SigmasTek
  • Product Type: Home Power Backup
  • Warranty: 12 Months
  • Bulk Orders: sales@batteryweb.com

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