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SigmasTek  |  SKU: BW-16534

Long Way LW-6FM20S High Performance Replacement Battery

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

➤ Compatible replacement for Long Way LW-6FM20S model

➤ Uses advanced Absorbent Glass Mat (AGM) technology

➤ Maintenance-free and spill-proof design for safety

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

➤ Includes 1-year warranty and factory-fresh condition


📦🚀 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-6FM20S Replacement Battery — Compatible with Long Way LW-6FM20S

This replacement battery is specially designed for compatibility with the Long Way LW-6FM20S model, offering dependable power, consistent performance, and long-term reliability. As a high-performance battery replacement, the SigmasTek Long Way LW-6FM20S unit uses AGM technology and a sealed, maintenance-free design to deliver worry-free operation across a wide range of standby and cycle use scenarios. When you need a reliable, long-lasting battery for critical backup or motive applications, this LW-6FM20S replacement provides excellent value and proven durability.

Key Specifications

  • Compatible Model: Long Way LW-6FM20S
  • 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-6FM20S replacement battery delivers durability and extended cycle life expected from a long-lasting battery. AGM construction enhances resilience against vibration and improves charge/discharge efficiency, making this unit a true high-performance battery option for both standby and cyclic applications. Users benefit from stable voltage output and reliable current delivery, ensuring connected devices operate smoothly during power interruptions or extended use.

Maintenance-free operation eliminates fluid handling and reduces upkeep time. The sealed, spill-proof design improves safety and allows flexible mounting orientations while the nut & bolt terminals provide robust, secure electrical connections. U.L. recognition and CE certification indicate the battery meets recognized standards for safety and performance.

  • Durability: Robust sealed AGM construction
  • High Performance: Consistent power delivery under load
  • Low Maintenance: Sealed and spill-proof for worry-free use
  • Versatile: Suited to standby and cyclic applications

Typical applications include UPS systems, emergency power and lighting, security and alarm systems, medical standby, and small motive devices that require a dependable replacement battery. The 12V 18Ah capacity is well-suited for medium-demand backup scenarios where long-lasting, steady power is required.

Replace your Long Way LW-6FM20S today with this reliable SigmasTek replacement battery — a high-performance, long-lasting battery backed by a 1 year warranty. Add to cart now to secure dependable power for your equipment.


Payment & Security

Payment methods

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