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SigmasTek  |  SKU: BW-5303

Alpha Technologies Nexsys 600E UPS High Performance Compatible Replacement Battery Set 25.32 lb

25% off
New arrival
Sale price $113.99 USD Regular price $152.99
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Set includes 2 brand new 12V 18AH SigmasTek batteries for Nexsys 600E UPS
High rate discharge capability supports emergency and UPS applications
Valve regulated and spill-proof design offers safe, leak-free operation
Low self-discharge extends battery lifespan when not in use
Tested to meet or exceed OEM specs with 1-year warranty included
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🔹 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.

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Volts & Amps

12 Volts | 18 Ah

Terminal Type

Nut & Bolt

SigmasTek SP12-18HR Replacement Battery Set for Alpha Technologies Nexsys 600E

Specifically tailored to fit the Alpha Technologies Nexsys 600E, this replacement UPS battery set provides reliable, high-rate discharge performance and consistent, factory-fresh reliability. The set includes two SigmasTek SP12-18HR batteries (12 Volts, 18 AH) to restore your Nexsys 600E’s backup capacity. Note: you must reuse all original cables and hardware when connecting these replacement units.

Key Specifications

  • Battery set includes: 2 x SigmasTek SP12-18HR
  • Voltage: 12 Volts
  • Capacity: 18 AH (amp-hours)
  • Battery chemistry/design: High Rate Discharge Design
  • Construction: Valve Regulated Spill Proof Construction
  • Self-discharge: Low Self-discharge
  • Vibration resistance: High Vibration Resistance
  • Certifications: U.L. Recognized and CE Certified
  • Condition: Brand New, Factory Fresh
  • Warranty: 1 Year Warranty
  • Terminal type: Nut & Bolt
  • Brand: SigmasTek (replacement for Alpha Technologies)
  • Compatible with: Alpha Technologies Nexsys 600E Uninterruptible Power Supply (UPS) unit
  • Typical applications: Uninterruptible Power Supply (UPS) Units, Emergency Power Supply, Battery Powered Tools

Benefits

  • Durability: The valve-regulated spill-proof design and enhanced vibration resistance protect internal elements from environmental and mechanical stress.
  • Long life: Low self-discharge properties and brand-new construction help ensure a long-lasting battery that holds charge in standby periods.
  • High performance: Built as a high-performance UPS battery for high-rate discharge scenarios, these cells deliver the short-term power surges needed by the Nexsys 600E during critical events.
  • Tested reliability: Every replacement UPS battery is quality-tested to meet or exceed the OEM expectations for runtime and output.
  • Versatility: Ideal for UPS systems, emergency power backups, and battery-driven tools demanding 12V 18AH capability.
  • Simple swap: Designed to integrate using your existing cables and hardware so technicians can complete replacements quickly and correctly.

Bring your Alpha Technologies Nexsys 600E back to full protection with this reliable, long-lasting battery set. Add to cart now to secure dependable UPS backup power and fast shipment.

Technical Specifications

Voltage12 Volts
Amp Hours18 Ah
Terminal TypeNut & Bolt
Length (in.)7.13
Width (in.)3.0
Height (in.)6.59
Weight (lb.)25.3

Product Highlights

  • Brand Replacement : Alpha Technologies
  • Manufacturer: SigmasTek
  • Product Type: UPS Batteries
  • Warranty: 12 Months
  • Bulk Orders: sales@batteryweb.com

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