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SigmasTek  |  SKU: BW-1676

APC SMT3000I High Performance Replacement Battery Set 50.64 lb

19% off
New arrival
Sale price $138.98 USD Regular price $171.49
Shipping calculated at checkout.
Includes 4 replacement 12V 18AH UPS batteries with NB terminal
AGM sealed batteries for maintenance-free operation
UL certified for quality and safety assurance
Compatible with APC SMT3000I original battery set
1-year warranty for reliable UPS backup
In stock

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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.

Disclaimer

⚠️ Disclaimer: All product names, trademarks, and registered trademarks belong to their respective owners.

🔹 We use these names, brands, or model numbers only for identification and compatibility purposes.


Volts & Amps

12 Volts | 18 Ah

Terminal Type

Nut & Bolt

APC SMT3000I Replacement Batteries - 4 x 12V 18AH (NB Terminal)

Keep your APC SMT3000I running at peak performance with a complete set of four replacement UPS batteries engineered for compatibility, reliability, and long runtime. This package is designed to match or exceed the original specifications for the APC SMT3000I so you can trust uninterrupted protection for servers, network gear, and home office equipment. Sourced by ReplaceUPSBattery.com and built with AGM sealed battery technology, these cells deliver consistent, dependable power as a high-performance UPS battery and a long-lasting battery solution.

Key Specifications

  • Package contains: 4 batteries (price includes all 4 batteries)
  • Volts: 12 V
  • Amp Hours: 18 AH
  • Terminal: NB
  • Chemistry: SLA (Sealed Lead Acid)
  • Technology: AGM (Absorption Glass Mat)
  • Warranty: 1-year Warranty
  • Brand / Sourced by: SigmasTek (sourced by ReplaceUPSBattery.com)
  • UL Certification: All batteries are UL certified
  • Weight: 52 Lbs (package/individual as indicated)
  • Length: 7.13 In
  • Width: 3 In
  • Height: 6.59 In
  • Compatibility: Guaranteed compatibility with original battery set for APC SMT3000I
  • Shipping: UPS Ground and USPS; we ship in 1 business day for all in-stock items

Benefits

  • Durability: AGM sealed construction resists vibration and minimizes maintenance, providing a rugged and reliable high-performance UPS battery that stands up to daily use.
  • Long life: Engineered to meet or exceed original manufacturer specifications, these replacement UPS battery packs deliver consistent cycles and a long-lasting battery life under normal operating conditions.
  • High performance: Designed for fast delivery of steady power during outages and brownouts, keeping critical systems online with minimal voltage drop and efficient recharge characteristics.
  • Pre-tested quality: Each battery is UL certified and sourced to ensure safety and consistent output—ideal for protecting servers, network switches, telecom equipment, and home office electronics.
  • Easy installation: Install the new APC SMT3000I replacement batteries in the same original configuration and reuse your existing cables and hardware for a seamless swap.
  • Typical applications: Ideal for UPS backup systems, emergency power, network closets, small data centers, and tool charging systems that require a reliable 12V 18AH supply.
  • Peace of mind: 1-year warranty and fast shipping get you back to protected operation quickly.

If you need assistance confirming dimensions or installation instructions for your APC SMT3000I, our customer service team is available by email, chat, or toll-free at (800) 657-1303. Don’t wait until the next outage—replace worn cells with this certified, high-performance UPS battery set today and restore reliable runtime to your APC SMT3000I.

Ready to buy? Click to add this compatible, long-lasting battery set to your cart and secure trusted backup power now.

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 SMT3000I
  • Manufacturer: SigmasTek
  • Product Type: UPS Batteries
  • Warranty: 12 Months
  • Bulk Orders: sales@batteryweb.com

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