For questions, quotes, or help finding the right battery, feel free to email us at sales@batteryweb.com or give us a call at +1 817-210-3321

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SigmasTek  |  SKU: BW-16537

Long Way LW-6FM20BJ High Performance Replacement Battery

Sale price $38.99 USD Regular price $80.10
Shipping calculated at checkout.

➤ Absorbent Glass Mat (AGM) technology for enhanced performance

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

➤ U.L. Recognized and CE Certified for guaranteed safety and quality

➤ Brand new, factory fresh for reliable power and longevity

➤ 1-year warranty ensures peace of mind and product confidence


📦🚀 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 | 18 Ah

Terminal Type

Nut & Bolt

Long Way LW-6FM20BJ Replacement Battery — Compatible with Long Way LW-6FM20BJ

Replace your original Long Way LW-6FM20BJ with a reliable, tested replacement battery that delivers the consistent performance and durability you need. The SigmasTek Long Way LW-6FM20BJ replacement is a sealed lead-acid SLA battery built with AGM technology and a maintenance-free, spill-proof design to provide dependable service in backup and standby applications. If you’re searching for a high-performance battery that’s also a long-lasting battery solution, this LW-6FM20BJ replacement offers excellent value and proven reliability.

Key Specifications

  • Compatible Model: Long Way LW-6FM20BJ
  • Replacement Brand: SigmasTek
  • Battery Type: Rechargeable Sealed Lead Acid (SLA)
  • Technology: Absorbent Glass Mat (AGM) Technology
  • Voltage: 12 Volts
  • Capacity: 18 Ah
  • Terminal Type: Nut & Bolt
  • Design: Maintenance-Free with Spill Proof Construction
  • Certifications: U.L. Recognized and CE Certified
  • Condition: Brand New, Factory Fresh
  • Warranty: 1 Year Warranty

Benefits

The Long Way LW-6FM20BJ replacement battery brings durability and extended life to your power systems, qualifying as a dependable long-lasting battery. AGM construction improves resistance to vibration and offers better charge/discharge efficiency, characteristics that define a quality high-performance battery. This unit maintains steady voltage under load and provides reliable reserve capacity during outages or extended use.

The maintenance-free, spill-proof design reduces service requirements and enhances safety, enabling flexible installation orientations. Nut & bolt terminals provide secure, low-resistance connections for reliable operation in fixed installations. With U.L. recognition and CE certification, the battery meets established industry standards for safety and performance.

  • Durability: Sturdy AGM design for extended service life
  • High Performance: Stable power output and strong charge acceptance
  • Low Maintenance: Sealed and spill-proof for easy handling
  • Standards Compliant: U.L. recognized and CE certified

Ideal for UPS units, emergency power and lighting, security systems, telecom standby, and other applications requiring a trustworthy replacement battery. The 12V 18Ah specification makes it well-suited for medium-demand backup roles where consistent power is essential.

Ready to upgrade to a reliable Long Way LW-6FM20BJ replacement battery? Purchase this SigmasTek high-performance, long-lasting battery today and enjoy dependable power backed by a 1 year warranty.


Payment & Security

Payment methods

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