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Brightway Group  |  SKU: BW-6919

Wheelhorse 21-42 Compatible Replacement Battery By Bright Way

Sale price $43.00 USD Regular price $56.90
Shipping calculated at checkout.

➤ 12V voltage ensures reliable power for Wheelhorse 21-42 equipment

➤ 18Ah capacity provides long-lasting battery life for extended use

➤ Nut & Bolt (NB) terminal design for secure and stable connections

➤ Easy installation with perfect fit for seamless replacement

➤ Enhances mower start-up reliability for uninterrupted lawn care


📦🚀 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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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 | 18 Ah

Terminal Type

Nut & Bolt

Wheelhorse 21-42 Replacement Battery By Bright Way - Compatible with Wheelhorse 21-42

Restore dependable starting power to your Wheelhorse 21-42 lawn and garden equipment with this Bright Way 12V 18Ah replacement battery. Crafted for optimal fit and performance, this battery offers long-lasting power and easy installation so your mower and garden machines fire up reliably when it’s time to work. Whether you mow frequently or use your equipment seasonally, this dependable battery keeps essential power on hand.

Key Specifications

  • Voltage: 12 volts
  • Capacity: 18 Ah
  • Terminal Type: NB
  • Compatibility: Designed for Wheelhorse 21-42
  • Brand: Bright Way
  • Fitment: Perfect fitting and easy installation
  • Additional Listed Specs: Wheelhorse 21-42 Replacement Battery By Bright Way
  • Additional Listed Specs: 12 Volts
  • Additional Listed Specs: 18 Ah
  • Additional Listed Specs: Nut & Bolt

Benefits

This Bright Way replacement battery delivers the attributes you want in a high-performance battery: reliable cranking power, steady voltage under load, and a design focused on longevity. As a long-lasting battery option for lawn and garden equipment, it helps reduce downtime and the frustration of failed starts during peak mowing season.

Durable construction and precise sizing mean the battery installs easily and sits securely in the mower’s battery tray. Maintenance is straightforward—this battery is intended to deliver dependable service with minimal fuss, allowing you to get back to yard work quickly. In addition to garden tractors and mowers, batteries like this are commonly used in utility carts, small-scale UPS systems, and emergency power applications where compact 12V energy storage is needed.

Choosing the right replacement battery for your Wheelhorse 21-42 ensures consistent performance and fewer interruptions. Bright Way builds to fit—so you get a hassle-free swap and improved reliability from day one.

Ready to get back to perfectly cut lawns? Order this Bright Way 12V 18Ah replacement battery for your Wheelhorse 21-42 today and enjoy a strong, long-lasting battery that keeps your equipment running at its best.


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