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SigmasTek  |  SKU: BW-16538

Long Way LW-6FM20B High Performance Replacement Battery

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

➤ Compatible replacement for Long Way LW-6FM20B model

➤ Maintenance-free AGM technology with spill-proof design

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

➤ Brand new, factory fresh battery for optimal performance

➤ Includes 1-year warranty for peace of mind


📦🚀 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

Long Way LW-6FM20B Replacement Battery — Compatible with Long Way LW-6FM20B

This Long Way LW-6FM20B replacement battery delivers reliable compatibility, dependable performance, and proven reliability for your equipment. Engineered as a sealed lead acid (SLA) rechargeable option, this replacement battery meets or exceeds the original equipment manufacturer's specifications and is a direct-fit solution for the Long Way LW-6FM20B model. Whether you need a dependable power source for standby systems or daily use, this high-performance battery provides ready power when you need it most.

Key Specifications

  • Compatible Model: Long Way LW-6FM20B
  • Battery Type: Rechargeable Sealed Lead Acid (SLA)
  • Technology: Absorbent Glass Mat (AGM)
  • Voltage: 12 Volts
  • Capacity: 18 Ah
  • Terminal Type: Nut & Bolt
  • Certifications: U.L. Recognized and CE Certified
  • Design: Maintenance-Free with Spill Proof Construction
  • Condition: Brand New, Factory Fresh
  • Replacement Brand/Listing: SigmasTek
  • Warranty: 1 Year

Benefits

This Long Way LW-6FM20B replacement battery offers exceptional durability and long life thanks to AGM technology and a maintenance-free, spill-proof design. The Absorbent Glass Mat construction improves charge acceptance and vibration resistance, making this a high-performance battery for both continuous and standby applications. Users will appreciate its robust build and the U.L. and CE certifications that confirm safe, reliable operation under normal conditions.

As a long-lasting battery solution, it is ideally suited for a wide variety of applications: uninterruptible power supplies (UPS), emergency lighting and backup power systems, security systems, medical equipment backups, small electric vehicles, and portable tools that require a stable 12V supply. The nut & bolt terminal offers secure connections in installations where vibration or movement could loosen lesser terminals, so it performs well in environments where reliability matters.

This replacement battery is crafted to be a cost-effective alternative to OEM units while providing the consistent performance expected from a high-quality SLA battery. Designed for easy installation and immediate use out of the box, it comes brand new and factory fresh with a 1 year warranty for added confidence.

Ready to upgrade your power reserve? Order this Long Way LW-6FM20B long-lasting battery today and experience a high-performance battery that ensures dependable backup and daily operation. Add to cart now to secure fast shipping and trusted compatibility.


Payment & Security

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