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SigmasTek  |  SKU: BW-15628

Alexander G1240 Compatible Replacement Battery 3.5 lb

9% off
Sale price $29.99 USD Regular price $32.99
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Compatible replacement for Alexander G1240 model
Uses Absorbent Glass Mat (AGM) technology for enhanced performance
Maintenance-free and spill-proof design for safety and convenience
U.L. Recognized and CE Certified for quality assurance
Brand new with a 1-year warranty for reliable use
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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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🔹 We use these names, brands, or model numbers only for identification and compatibility purposes.


Volts & Amps

12 Volts | 5 AH

Terminal Type

F1

Alexander G1240 Battery (Replacement) — Compatible with Alexander G1240

This Alexander G1240 replacement battery delivers reliable compatibility, consistent performance, and proven reliability for devices that require the Alexander G1240 model. Engineered as a rechargeable Sealed Lead Acid (SLA) pack, this replacement battery is an excellent high-performance battery option when you need a dependable power source. Built with Absorbent Glass Mat (AGM) technology and a maintenance-free, spill-proof design, the Alexander G1240 replacement battery provides stable output and long service life so you can trust it in critical applications. If you’re searching for a long-lasting battery that meets or exceeds OEM specifications, this Alexander G1240 battery is designed to restore power and confidence to your equipment.

Key Specifications

  • Model compatibility: Alexander G1240 (Replacement)
  • Battery type: Rechargeable Sealed Lead Acid (SLA)
  • Technology: Absorbent Glass Mat (AGM) Technology
  • Design: Maintenance-Free Design with Spill Proof Construction
  • Certifications: U.L. Recognized and CE Certified
  • Condition: Brand New, Factory Fresh
  • Warranty: 1 Year Warranty
  • Brand: SigmasTek
  • Voltage: 12 Volts
  • Capacity: 5 AHF1
  • Meets or exceeds OEM SLA battery specifications

Benefits

  • Durability: The AGM construction and sealed design resist vibration and reduce leakage risk, delivering robust performance over repeated charge cycles.
  • Long life: Designed as a long-lasting battery replacement, it provides stable capacity retention and consistent power delivery for extended service intervals.
  • High performance: As a high-performance battery, it supports reliable recharge and discharge characteristics ideal for standby and cyclic use.
  • Maintenance-free convenience: The sealed, spill-proof build removes the need for water top-ups and regular maintenance, simplifying ownership.
  • Safety and compliance: U.L. Recognition and CE certification ensure industry-standard safety and manufacturing controls.
  • Versatile applications: Perfect for UPS systems, emergency power backups, alarm systems, medical devices, mobility equipment, and portable tools where dependable SLA power is required.
  • OEM-level fit and function: Meets or exceeds OEM SLA battery specifications so you can replace the original Alexander G1240 with confidence.
  • Ready out of the box: Arrives brand new and factory fresh, backed by a 1 year warranty for added peace of mind.

Ready to upgrade your equipment with a reliable replacement battery? Order the Alexander G1240 replacement today to get a high-performance, long-lasting battery that restores dependable power and meets OEM expectations.

Technical Specifications

Voltage12 Volts
Amp Hours5 AH
Terminal TypeF1
Length (in.)3.54
Width (in.)2.76
Height (in.)3.98
Weight (lb.)3.5

Product Highlights

  • Brand Replacement : Alexander G1240 Battery
  • Manufacturer: SigmasTek
  • Product Type: SLA Batteries
  • Warranty: 12 Months
  • Bulk Orders: sales@batteryweb.com

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