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SigmasTek  |  SKU: BW-7149

Swish-Err AZ2/AZV Compatible Lawn Mower Replacement Battery

Sale price $102.50 USD Regular price $135.64
Shipping calculated at checkout.

➤ Factory fresh replacement battery for Swish-Err AZ2/AZV Lawn Mower

➤ 100% compatible with original Swish-Err AZ2/AZV model

➤ Uses AGM technology for deep cycle and long-lasting performance

➤ Valve regulated, spill-proof design ensures safe operation

➤ Backed by a 1-year warranty with guaranteed performance


📦🚀 FAST SHIPPING: Usually ships same day if ordered before 2 PM EST

⚠️ Quick Reminder

🔹 Please ensure the original battery model number is listed in our product description and that your device model number matches for compatibility.
🔹 We only supply the batteries shown in the images. Device images are provided for reference only.

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Snap a photo or video of your battery and send it to us. We'll identify the exact replacement—fast and hassle-free. Our team has helped thousands of customers find the right battery quickly and easily.
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Battery Care Guide

Battery Usage and Maintenance Guidelines 🔋

Please read the following instructions carefully before using your new battery. Proper adherence will help ensure optimal performance and extended service life.

1. Cordless Phones, PDAs, and Power Tools (NiMH, NiCd, Lithium-Ion) 📱

Initial Charge

  • Fully charge the battery overnight prior to first use.

Conditioning (First 2–6 Charge Cycles)

  • Operate the device until the battery reaches approximately 20% capacity.
  • Avoid premature recharging.
  • Do not allow the battery to fully discharge during the initial cycles.

Post-Conditioning

  • Recharge the battery only when necessary.
  • These batteries are capable of approximately 500 charge cycles:
  • Once daily → ~500 days
    Twice daily → ~250 days
    Note: Even a partial recharge is considered a full cycle.

2. Sealed Lead Acid (SLA) Batteries 💡

  • No conditioning required.
  • Maintain the battery in a fully charged state; avoid complete discharge.
  • Capable of 300–400 charge cycles.
  • Expected service life: 2–3 years, depending on usage conditions.

3. Laptop Batteries (Lithium-Ion) 💻

Initial Charge

  • Fully charge the battery overnight prior to first use.

Conditioning (First 2–6 Charge Cycles)

  • Charge fully, then discharge to approximately 20% capacity.
  • Avoid complete discharge, as some devices may not detect a fully drained battery.

Post-Conditioning

  • Minimize frequent plugging and unplugging.
  • Allow the battery to discharge moderately at least once per month to maintain optimal performance.
  • Occasional cycling is recommended to sustain battery health.

Professional Recommendation

Adhering to these guidelines will enhance battery longevity and ensure reliable performance.

For further assistance regarding your battery or order, our customer support team is available to provide guidance.

Delivery and Shipping

Everything You Need to Know About Shipping with BatteryWeb (USA)

We know reliable delivery matters when you need power fast. Here’s how BatteryWeb makes shipping easy across the USA:

🚚 Shipping & Delivery

Most orders ship next business day (some products like sealed lead acid may take a little longer).

Same-day shipping available if you order before 11:59 AM (delivery depends on the carrier).

We ship nationwide using FedEx, UPS, USPS, DHL, and regional ground carriers.

Shipping costs are calculated automatically at checkout based on weight, distance, and carrier.

Transit times shown are estimates only (business days, no weekends/holidays).

🌍 Shipping Restrictions

Lithium batteries cannot be shipped by USPS or air. They must go via FedEx Ground, UPS Ground, or DHL Ground.

PO Box deliveries are only available via USPS.

At this time, we do not ship lithium batteries to Puerto Rico. NiMH, NiCd, and Alkaline can be shipped.

📦 Important Notes

Double-check your shipping address! If an incorrect address is used and the order is returned, re-shipping costs are the buyer’s responsibility.

If a product is temporarily out of stock, we’ll notify you right away with the expected restock date—or issue a refund if you prefer.

💲 Currency & Pricing

All prices are shown in USD.

Orders shipped outside the USA may be subject to local taxes, customs fees, or import duties. These are the buyer’s responsibility.

⚡ At BatteryWeb, we’re committed to getting your batteries delivered quickly, safely, and affordably—so you’ll always have the power you need, when you need it.

Disclaimer

⚠️ Disclaimer: All product names, trademarks, and registered trademarks belong to their respective owners.

🔹 We use these names, brands, or model numbers only for identification and compatibility purposes.

🔹 Our products are generic replacement parts and are not affiliated with, endorsed by, or manufactured by the original equipment manufacturers (OEMs).


Volts & Amps

12 Volts | 35 AH

Terminal Type

Nut & Bolt

Swish-Err AZ2/AZV Lawn Mower Battery — Compatible with Swish-Err AZ2/AZV

Get dependable runtime and peace of mind with this Swish-Err AZ2/AZV replacement battery. Manufactured factory-fresh for consistent quality, this battery restores performance to your Swish-Err AZ2/AZV Lawn Mower with AGM spill-proof technology and deep-cycle capability. If you’re searching for a reliable, long-lasting battery that offers high-performance power for mowing and more, this unit is engineered to meet that need.

Key Specifications

  • Brand: Swish-Err
  • Compatible Model: Swish-Err AZ2/AZV 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

  • Built to Last: AGM design and valve-regulated construction reduce maintenance and protect against leaks, giving you a dependable, long-lasting battery.
  • Deep-Cycle Reliability: Optimized for repeated discharge and recharge cycles, making it well-suited for regular lawn mower use.
  • Strong Performance: High energy density delivers sustained power for extended mowing sessions — this is a genuine high-performance battery.
  • Certified Safety: U.L. recognition and CE certification ensure the battery meets recognized standards for safety and reliability.
  • Multi-Use: Besides lawn mowers, compatible with various 12V 35AH applications such as backup power systems, UPS, and portable equipment that require a rugged deep-cycle replacement battery.
  • Simple Swap-In: Designed as a replacement for SP12-35 NB and uses your existing cables/hardware with nut & bolt terminals for quick installation.

Don’t wait — replace your old battery with this Swish-Err AZ2/AZV replacement battery now. Enjoy improved runtime, reliable performance, and the confidence of a 1 year warranty. Buy today to secure fast shipping and exceptional value.


Payment & Security

Payment methods

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  • Diners Club
  • Discover
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  • Mastercard
  • PayPal
  • Shop Pay
  • Visa

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