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SigmasTek  |  SKU: BW-14006

Long Way LW-3FM4.2 High Performance Replacement Battery

Sale price $7.99 USD Regular price $10.50
Shipping calculated at checkout.

➤ Compatible replacement for Long Way LW-3FM4.2 model

➤ Uses advanced Absorbent Glass Mat (AGM) technology

➤ Maintenance-free and spill-proof for hassle-free use

➤ U.L. Recognized and CE Certified for safety assurance

➤ Brand new with a 1-year warranty for reliable 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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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

6 Volts | 4.5 AH

Terminal Type

F1

Long Way LW-3FM4.2 Replacement Battery — Compatible with LW-3FM4.2

Designed as a direct, reliable replacement for the Long Way LW-3FM4.2 model, this factory-fresh SLA battery meets or exceeds OEM specifications for dependable power and safety. Built with quality AGM construction and sealed, maintenance-free design, this replacement battery is ideal for users who want consistent performance and minimal upkeep. Choose this long-lasting battery to restore reliable operation to your equipment quickly.

Key Specifications

  • Model: Long Way LW-3FM4.2 (Replacement)
  • Battery Type: Rechargeable Sealed Lead Acid (SLA)
  • Technology: Absorbent Glass Mat (AGM) Technology
  • Design: Maintenance-Free with Spill Proof Construction
  • Certifications: U.L. Recognized and CE Certified
  • Condition: Brand New, Factory Fresh
  • Warranty: 1 Year Warranty
  • Brand/Pack: Long Way (SigmasTek)
  • Voltage: 6 Volts
  • Capacity: 4.5 AH
  • Identifier: AHF1

Benefits

The Absorbent Glass Mat (AGM) construction ensures reliable charge acceptance and long shelf life, making the Long Way LW-3FM4.2 replacement battery an excellent choice for both standby and cyclic applications. Its maintenance-free, spill-proof design enhances safety and reduces the need for hands-on care. With U.L. recognition and CE certification, this battery meets recognized benchmarks for performance and safety.

Expect high-performance battery behavior in demanding situations, with stable voltage under load and dependable recharge characteristics for repeated use. This long-lasting battery is ideal for UPS units, emergency power systems, alarm and security systems, and electric tools that require a steady, dependable power source. The sealed SLA format reduces the chance of leakage and simplifies installation and storage.

Compact and ready to install, the LW-3FM4.2 replacement provides a straightforward solution to restoring your device to full operation. Backed by a 1-year warranty, it delivers reliable performance you can count on for day-to-day or emergency use.

Take action now—order the Long Way LW-3FM4.2 replacement battery and secure a high-performance, long-lasting battery solution that keeps your critical equipment powered and protected. Add to cart to purchase today.



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