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SigmasTek  |  SKU: BW-15333

Apex APX12-55 High Performance Replacement Battery 36.03 lb

25% off
Sale price $209.99 USD Regular price $278.99
Shipping calculated at checkout.
Absorbent Glass Mat (AGM) technology for reliable performance
Maintenance-free and spill-proof design for hassle-free use
U.L. recognized and CE certified for safety and quality assurance
Brand new and factory fresh for optimal battery life
1 year warranty ensuring peace of mind and product reliability
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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 | 55 AH

Terminal Type

Nut & Bolt

Apex Battery APX12-55 Replacement Battery (compatible with Apex Battery APX12-55)

This replacement battery is engineered for full compatibility with the Apex Battery APX12-55 model, delivering reliable performance, steady power output, and exceptional dependability in critical applications. Designed to meet or exceed OEM SLA specifications, this high-performance battery uses advanced Absorbent Glass Mat (AGM) technology and a maintenance-free, spill-proof construction to ensure safe, consistent operation whether used in standby or cyclic service. If you need a long-lasting battery that fits the APX12-55 footprint and terminal configuration exactly, this Apex Battery APX12-55 replacement battery is a dependable choice.

Key Specifications

  • Model Compatibility: Apex Battery APX12-55
  • Replacement Brand: SigmasTek
  • Battery Type: Rechargeable Sealed Lead Acid (SLA)
  • Technology: Absorbent Glass Mat (AGM)
  • Voltage: 12 Volts
  • Capacity: 55 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
  • Note: Meets or exceeds OEM SLA battery specifications

Benefits

Built for durability and dependable service life, this replacement battery offers a long-lasting battery solution for both standby and deep-cycle uses. AGM construction provides superior vibration resistance and low internal resistance for consistent high current delivery, making it a true high-performance battery for demanding scenarios. The maintenance-free, spill-proof design reduces upkeep and improves safety in enclosed equipment and racks.

Expect exceptional longevity and cycle stability, ideal for UPS systems, emergency lighting and backup power, alarm and security systems, telecom equipment, electric tools, mobility devices, and other critical applications where uninterrupted power is essential. With U.L. and CE recognition and a factory-fresh build, this APX12-55 replacement battery offers the confidence you need in emergency and continuous-use environments. The nut & bolt terminals ensure a secure connection for high-current draws and reliable installation.

Ready to upgrade your system with a reliable, high-performance replacement battery for the APX12-55? Add this long-lasting battery to your cart now and enjoy proven compatibility, solid performance, and a 1 year warranty for peace of mind.

Technical Specifications

Voltage12 Volts
Amp Hours55 AH
Terminal TypeNut & Bolt
Length (in.)9.04
Width (in.)5.45
Height (in.)8.15
Weight (lb.)36.0

Product Highlights

  • Brand Replacement : Apex Battery APX12-55
  • Manufacturer: SigmasTek
  • Product Type: SLA Batteries
  • Warranty: 12 Months
  • Bulk Orders: sales@batteryweb.com

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