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SigmasTek  |  SKU: BW-7148

Swish-Err AZV-12V-8S High Performance Lawn Mower Replacement Battery 24.72 lb

22% off
New arrival
Sale price $122.99 USD Regular price $157.99
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Factory fresh and brand new for reliable performance
100% compatible with Swish-Err AZV-12V-8S Lawn Mower models
Absorbent Glass Mat (AGM) technology for deep cycle usage
Valve regulated, spill-proof design ensures safety and durability
Backed by a 1-year warranty and certified for quality and safety
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Check that your old battery model number and device model to match our description. This makes sure they work together.


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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

Swish-Err AZV-12V-8S Lawn Mower Battery — Compatible with Swish-Err AZV-12V-8S

Replace your tired battery with a factory-fresh replacement battery built for dependable performance and compatibility. This Swish-Err AZV-12V-8S replacement battery delivers reliable power, exceptional deep-cycle performance, and the spill-proof safety of AGM construction — ideal when you need a high-performance battery you can trust for everyday mowing and demanding use. If you own a Swish-Err AZV-12V-8S Lawn Mower, this long-lasting battery is designed to be 100% compatible and to restore runtime and reliability.

Key Specifications

  • Brand: Swish-Err
  • Compatible Model: Swish-Err AZV-12V-8S Lawn Mower
  • Replacement For: SP12-35 NB
  • Quantity Required: 1 battery
  • Voltage: 12 Volts
  • Capacity: 35 AH
  • Terminal: Nut & Bolt
  • Battery Technology: Absorbent Glass Mat (AGM)
  • Designed For: Deep Cycle Usage
  • Construction: Valve Regulated Spill Proof
  • Energy: 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

  • Durability: AGM construction and valve-regulated design reduce maintenance and prevent spills for clean, long service life.
  • Long Life: Engineered for deep-cycle usage, this long-lasting battery holds charge and recovers well from repeated discharge cycles.
  • High Performance: The superior power/volume ratio provides strong output for demanding starts and steady run times — a true high-performance battery for lawn equipment.
  • Reliable Safety: U.L. recognized and CE certified to meet safety and quality standards for consumer and commercial use.
  • Versatility: While optimized for the Swish-Err AZV-12V-8S Lawn Mower, this replacement battery also suits similar 12V, 35AH applications like small utility vehicles, backup systems, and portable power tools where a robust deep-cycle battery is needed.
  • Easy Installation: Matches the SP12-35 NB form and uses existing cables and hardware (nut & bolt terminals) so installation is straightforward.

Ready to upgrade? Order this Swish-Err AZV-12V-8S replacement battery today and enjoy a high-performance, long-lasting battery that restores reliable power to your lawn mower. Purchase now to get superior value, quick shipping, and a 1 year warranty backing your investment.

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 : Swish-Err AZV-12V-8S Lawn
  • Manufacturer: SigmasTek
  • Product Type: Home Power Backup
  • Warranty: 12 Months
  • Bulk Orders: sales@batteryweb.com

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