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SigmasTek  |  SKU: BW-13998

Long Way LW-3FM4 High Performance Replacement Battery

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

➤ Meets or exceeds OEM SLA battery specifications for reliable performance

➤ Absorbent Glass Mat (AGM) technology for enhanced durability and safety

➤ Maintenance-free, spill-proof design for hassle-free use

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

➤ Includes a 1-year warranty and guaranteed 100% compatibility with Long Way LW-3FM4


📦🚀 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 Replacement Battery — Compatible with Long Way LW-3FM4

This replacement Long Way LW-3FM4 Rechargeable Sealed Lead Acid (SLA) battery is engineered for exact compatibility with the Long Way LW-3FM4 model. Designed to meet or exceed OEM SLA battery specifications, it delivers dependable performance and reliable power when you need it most. Whether replacing an aging battery in a small UPS, emergency light, medical device, or portable power tool, this high-performance battery is built to provide stable voltage, low self-discharge, and maintenance-free operation for worry-free use.

Key Specifications

  • Model: Long Way LW-3FM4 (Replacement)
  • Battery Type: Rechargeable Sealed Lead Acid (SLA)
  • Technology: Absorbent Glass Mat (AGM)
  • Voltage: 6 Volts
  • Capacity: 4.5 AH
  • Terminal Type: F1
  • Brand: SigmasTek
  • Design: Maintenance-Free with Spill Proof Construction
  • Certifications: U.L. Recognized and CE Certified
  • Condition: Brand New, Factory Fresh
  • Warranty: 1 Year Warranty

Benefits

  • Durability: Built with AGM technology and spill-proof construction, this replacement battery withstands vibration and shock better than flooded designs. The sealed construction prevents leaks and minimizes maintenance, making it ideal for enclosed equipment and portable applications.
  • Long Life and Reliability: The maintenance-free design and high-quality factory fresh cells offer extended service life and stable capacity over many charge/discharge cycles. As a long-lasting battery solution, it reduces replacement frequency and lowers total cost of ownership.
  • High Performance: This high-performance battery delivers consistent output and reliable recharge acceptance for fast recovery after discharge. It is suitable for cyclic and standby applications where steady voltage and dependable backup power are required.
  • Safety and Certification: U.L. recognition and CE certification ensure compliance with industry safety standards, so you can trust the battery in critical equipment and regulated environments.
  • Typical Applications: Common uses include small uninterruptible power supplies (UPS), emergency lighting systems, alarm and security systems, medical and dental equipment, portable power tools, and other devices requiring a 6V/4.5AH SLA battery.
  • OEM Compatibility: Guaranteed to fit and function as a direct replacement for the Long Way LW-3FM4 model, providing the same form factor and terminal placement (F1) for easy installation.

Ready to restore reliable power? Order this Long Way LW-3FM4 replacement battery today and get a high-performance, long-lasting battery backed by a 1 year warranty. Click to buy now and ensure continuous power for your equipment.


Payment & Security

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