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SigmasTek  |  SKU: BW-7853

Bunton BZT61 Heavy Duty Lawn Mower Replacement Battery 24.72 lb

19% off
New arrival
Sale price $122.99 USD Regular price $150.99
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Factory fresh replacement battery for Bunton BZT61 Lawn Mower
12 Volt 35 AH capacity with deep cycle AGM technology
Valve regulated, spill-proof design for safety and durability
100% compatible using existing cables and hardware
Includes 1 year warranty and guaranteed high 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

Bunton BZT61 Lawn Mower Replacement Battery (Compatible with Bunton BZT61)

Upgrade your Bunton BZT61 Lawn Mower with a factory-fresh, reliable replacement battery engineered for dependable performance. This replacement battery is 100% compatible with the Bunton BZT61 and delivers the cycle life and steady power output you need for heavy mowing sessions. Built using Absorbent Glass Mat (AGM) technology and valve-regulated, spill-proof construction, this high-performance battery offers safe, maintenance-free operation and consistent results day after day.

Key Specifications

  • Compatible Model: Bunton BZT61
  • Battery Model: SP12-35 NB
  • Voltage: 12 V
  • Capacity: 35 AH
  • Terminal Type: Nut & Bolt
  • Technology: Absorbent Glass Mat (AGM)
  • Usage Type: 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
  • Quantity Required: 1 battery
  • Guarantee: Performance Guaranteed

Benefits

This Bunton BZT61 replacement battery is engineered for durability and long service life. The AGM design resists vibration and shock—important for outdoor power equipment—while offering a long-lasting battery solution that supports repeated deep cycle use. Expect stable voltage under load and excellent charge acceptance, making it a high-performance battery choice for regular mowing, heavy-duty yard work, and routine maintenance tasks.

The valve-regulated, spill-proof construction provides safe installation and reduces maintenance needs, while UL and CE certifications confirm reliable manufacturing standards. Whether you need dependable starting power or sustained runtime for extended mowing sessions, this battery performs consistently. Typical applications include lawn mowers, small utility vehicles, backup power for emergency systems, and portable power tools where a robust, deep-cycle source is required.

Choose this replacement battery if you want an efficient balance of energy density and compact size—ideal for keeping your Bunton BZT61 running at peak performance. The included nut & bolt terminal style ensures secure connections using your existing cables and hardware.

Ready to replace your old unit? Buy the Bunton BZT61 replacement battery now to enjoy a high-performance battery with proven reliability and a 1 year warranty. Order today and get back to mowing 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 : Bunton BZT61 Lawn
  • Manufacturer: SigmasTek
  • Product Type: Home Power Backup
  • Warranty: 12 Months
  • Bulk Orders: sales@batteryweb.com

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