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SigmasTek  |  SKU: BW-13249

12V 3.5Ah F2 High-Rate Sealed Lead Acid High Performance Replacement Battery 2.98 lb

15% off
Sale price $28.99 USD Regular price $33.99
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Meets or exceeds OEM SLA battery specifications for reliable performance
Brand new, factory fresh, and high quality for long-lasting use
Maintenance-free, non-spillable design safe for any orientation
Ideal for emergency lighting, security alarms, fire alarms, and more
Includes minimum one-year warranty and UL listing for guaranteed safety
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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.

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Volts & Amps

12 Volts | 3.5 Ah

Terminal Type

F2

Replacement 12 Volt 3.5 Amp F2 Sealed Lead Acid Battery (SigmasTek) — Compatible Model: 12 Volt 3.5 Ah F2

This 12 Volt 3.5 Amp F2 Sealed Lead Acid replacement battery meets or exceeds OEM SLA specifications and is built to deliver dependable, long-lasting performance. Factory fresh and UL listed, the 12 Volt 3.5 Amp F2 is a maintenance-free, non-spillable solution engineered for both standby and cycle use. If you need a reliable replacement battery for emergency systems, small UPS units, or consumer devices, this high-performance battery provides the quality, safety, and value required for demanding applications.

Key Specifications

  • Voltage: 12 Volts
  • Capacity: 3.5 Ah (3.5 Amp)
  • Terminal Type: F2
  • Battery Type: Sealed Lead Acid (SLA), High Rate
  • Design: Maintenance-Free, Non-Spillable, Operates in Any Orientation
  • Use: Suitable for Cycle and Standby Use
  • Life Expectancy in Standby Use: 3-5 Years
  • Certifications: UL Listed
  • Condition: Brand New, Factory Fresh
  • Warranty: Minimum 1 Year
  • Brand / Supplier: SigmasTek

Benefits

As a replacement battery, this 12 Volt 3.5 Amp F2 offers reliable energy storage with low maintenance requirements. Its sealed construction and non-spillable design minimize maintenance and enable safe installation in varied orientations. The unit’s UL listing and factory-fresh condition ensure you receive a high-performance battery built to strict safety and quality standards. Life expectancy of 3–5 years in standby applications means extended service life for emergency lighting, security alarms, fire alarm systems, and other critical monitoring equipment.

Typical applications include emergency lighting, security systems, fire alarms, medical devices, consumer electronics, and home & garden backup devices. It is especially well suited for smaller UPS units and other compact systems where compact size and reliable backup capability are required. The battery’s design for both cycle and standby use makes it versatile — capable of powering occasional deep cycles or serving faithfully in reserve power roles.

Choose this long-lasting battery for a straightforward, cost-effective replacement that ships quickly and arrives ready to install. Buy your 12 Volt 3.5 Amp F2 replacement battery today and restore dependable power with confidence.

Technical Specifications

Voltage12 Volts
Amp Hours3.5 Ah
Terminal TypeF2
Length (in.)5.24
Width (in.)2.64
Height (in.)2.36
Weight (lb.)2.98

Product Highlights

  • Brand Replacement : 12 Volt 3.5
  • Manufacturer: SigmasTek
  • Product Type: Heavy Duty Batteries
  • Warranty: 12 Months
  • Bulk Orders: sales@batteryweb.com

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