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SigmasTek  |  SKU: BW-14479

Long Way LW-3FM12D High Capacity Replacement Battery 4.08 lb

18% off
Sale price $30.99 USD Regular price $37.99
Shipping calculated at checkout.
Compatible replacement for Long Way LW-3FM12D model
Uses advanced Absorbent Glass Mat (AGM) technology
Maintenance-free with spill-proof, sealed construction
U.L. Recognized and CE Certified for safety and quality
Comes brand new with a 1-year manufacturer warranty
In stock

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Battery Care Tips

🔹 Getting Started

Charge your new battery fully before you use it for the first time. Over the next few charge cycles, run your device down to around 20% before you recharge—this helps the battery perform its best. After that, charge whenever you need to.

🔹 Keep It Healthy

Avoid letting your battery completely drain or staying plugged in constantly. Both extremes wear it out faster. Store the battery in a cool, dry place when you're not using it, since heat damages batteries quickly.

Delivery and Shipping

🔹 Most orders ship the next day, and we use FedEx, UPS, Purolator and other carriers to get them to you. Lithium batteries have to ship by ground only, not air or USPS. Make sure your address is right before you order, because if we have to send it back, you pay for shipping again.

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⚠️ 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.


Volts & Amps

6 Volts | 12 Ah

Terminal Type

F1

Long Way LW-3FM12D Replacement Battery - Compatible with LW-3FM12D

Restore reliable power with the Long Way LW-3FM12D replacement battery engineered for full compatibility and strong, consistent performance. This replacement battery meets or exceeds OEM SLA specifications for the LW-3FM12D model and delivers the dependable, maintenance-free operation professionals expect. If you need a high-performance battery that is also a long-lasting battery option, the LW-3FM12D delivers safe, steady energy for critical devices.

Key Specifications

  • Model: Long Way LW-3FM12D
  • Replacement Brand: SigmasTek (replacement for Long Way)
  • Voltage: 6 Volts
  • Capacity: 12 Ah
  • Terminal Type: F1
  • Technology: Absorbent Glass Mat (AGM)
  • Design: Maintenance-Free, Spill Proof Construction
  • Certifications: U.L. Recognized, CE Certified
  • Condition: Brand New, Factory Fresh
  • Warranty: 1 Year
  • OEM Compatibility: Meets or exceeds OEM SLA specifications

Benefits

Built to withstand frequent use and deliver consistent output, the LW-3FM12D replacement battery emphasizes durability and longevity. Its AGM construction ensures superior internal recombination and reduced self-discharge, translating into reliable standby and cycle performance. As a high-performance battery, it supports stable voltage delivery under load, protecting sensitive electronics and enhancing the lifespan of connected systems.

The maintenance-free, spill-proof design makes this long-lasting battery particularly well-suited for UPS systems, emergency backup power, alarm and security systems, mobility devices, and portable power tools. Certifications from U.L. and CE validate the battery’s safety and manufacturing quality, while the brand new, factory-fresh condition provides immediate readiness out of the box. With a one-year warranty and guaranteed compatibility, this replacement battery is an effective, low-risk solution for restoring full functionality to your LW-3FM12D device.

Don’t wait until power issues cause downtime. Purchase the Long Way LW-3FM12D replacement battery today for a dependable, high-performance battery that’s built to last and fully compatible with your LW-3FM12D equipment.

Technical Specifications

Voltage6 Volts
Amp Hours12 Ah
Terminal TypeF1
Length (in.)5.95
Width (in.)2.0
Height (in.)3.7
Weight (lb.)4.08

Product Highlights

  • Brand Replacement : Long Way LW-3FM12D
  • Manufacturer: SigmasTek
  • Product Type: SLA Batteries
  • Warranty: 12 Months
  • Bulk Orders: sales@batteryweb.com

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