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SigmasTek  |  SKU: BW-5121

APC SMART-UPS RM SU3000RM UPS High Performance Replacement Battery Set 50.64 lb

24% off
New arrival
Sale price $216.99 USD Regular price $284.99
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Includes 4 brand new SigmasTek SP12-18HR batteries (12V, 18AH)
High rate discharge design for reliable short-term power bursts
Valve regulated, spill-proof construction for safe, maintenance-free use
Low self-discharge extends shelf life and readiness
U.L. Recognized and CE Certified for quality and safety compliance
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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 | 18 Ah

Terminal Type

Nut & Bolt

Replacement SigmasTek SP12-18HR Battery Set for APC SMART-UPS RM SU3000RM

This premium replacement UPS battery set is designed specifically for the APC SMART-UPS RM SU3000RM, delivering dependable compatibility, improved performance, and field-proven reliability. The kit includes four brand new SigmasTek SP12-18HR batteries (12 Volts, 18 AH) configured to restore runtime and surge capability for your SU3000RM UPS. Ideal for data center racks, network closets, and critical power applications, this replacement UPS battery set is built for the higher power demands of modern equipment while maintaining safe, spill-proof operation. Please note: you will need to use all existing cables and hardware from your original configuration to connect these new UPS batteries.

Key Specifications

  • Battery Model: SigmasTek SP12-18HR
  • Quantity: 4 batteries per set
  • Voltage: 12 Volts
  • Capacity: 18 AH (Amp-hours)
  • Design: High Rate Discharge Design
  • Construction: Valve Regulated Spill Proof Construction
  • Features: Low Self-discharge
  • Durability: High Vibration Resistance
  • Certifications: U.L. Recognized and CE Certified
  • Condition: Brand New, Factory Fresh
  • Warranty: 1 Year Warranty
  • Terminal Type: Nut & Bolt
  • Compatible With: APC SMART-UPS RM SU3000RM

Benefits

When you replace aging or failed cells with this high-performance UPS battery set, you restore reliable backup power to critical systems. These SigmasTek batteries are engineered for high rate discharge — a necessity in UPS applications that demand short bursts of high current. That makes this product a high-performance UPS battery solution for environments where rapid load support and clean switchover matter.

The valve regulated spill proof construction plus low self-discharge chemistry extend service life and simplify maintenance, while high vibration resistance increases durability in rack-mounted or mobile installations. These design choices result in a long-lasting battery investment that reduces downtime and maintenance intervals. With U.L. recognition and CE certification, the set meets important safety and regulatory benchmarks for commercial installations.

Typical applications include Uninterruptible Power Supply (UPS) units like the APC SMART-UPS RM SU3000RM, emergency power supply systems for servers and telecom equipment, and battery-powered tools or support equipment that require short-duration high current. Whether you manage a server room, a UPS maintenance program, or an emergency backup system, this replacement UPS battery set is optimized for dependable performance.

Restore runtime and confidence today — buy this SigmasTek replacement UPS battery set for the APC SMART-UPS RM SU3000RM now and get a long-lasting battery solution backed by testing and a 1 year warranty. Orders for in-stock items typically ship within 24 hours.

Technical Specifications

Voltage12 Volts
Amp Hours18 Ah
Terminal TypeNut & Bolt
Length (in.)7.13
Width (in.)3.0
Height (in.)6.59
Weight (lb.)50.6

Product Highlights

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

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