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SigmasTek  |  SKU: BW-0205

APC S400RMXLB3U High Performance Replacement Battery 21.02 lb

24% off
New arrival
Sale price $105.99 USD Regular price $138.99
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Compatible replacement for APC S400RMXLB3U UPS system
12 Volt, 7.5 Amp Hour capacity for steady backup power
F2 terminal for secure connection
Ensures critical devices stay powered during outages
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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 | 7.5 Ah

Terminal Type

F2

SigmasTek 12V 7.5Ah Replacement Battery — APC S400RMXLB3U

Protect your APC S400RMXLB3U with a SigmasTek 12V 7.5Ah replacement battery engineered for reliable compatibility and steady performance. This replacement UPS battery provides the essential 12V output and 7.5Ah reserve capacity to keep critical devices operational during short outages and to allow safe shutdowns. If you rely on the APC S400RMXLB3U, this SigmasTek unit is a high-performance UPS battery that restores backup capability quickly and efficiently.

Key Specifications

  • Brand: SigmasTek
  • Compatible UPS Model: APC S400RMXLB3U
  • Volts: 12V
  • Amp Hours: 7.5Ah
  • Terminal: F2
  • Application Type: UPS

Benefits

The SigmasTek replacement UPS battery is built to provide dependable, long-lasting battery service for compact UPS systems. Its robust construction and predictable discharge profile make it a durable choice for protecting servers, network switches, and storage devices. As a long-lasting battery option, it supports routine charge cycles and maintains performance across the life of the battery pack, reducing the frequency of replacements and minimizing maintenance overhead.

This high-performance UPS battery is well suited for typical applications such as UPS backup for IT infrastructure, emergency power for communications and surveillance systems, and temporary power for tools and troubleshooting during maintenance. The F2 terminal ensures a secure and easy installation, which helps technicians complete battery swaps quickly to restore full backup capability to the APC S400RMXLB3U.

By choosing a SigmasTek replacement, you get a cost-effective way to extend the operational life of your UPS and protect against data loss, equipment damage, and unscheduled downtime. It’s a practical solution for data centers, branch offices, and professional AV deployments where reliable short-term backup is critical.

Ready to ensure uninterrupted backup for your APC S400RMXLB3U? Order this SigmasTek high-performance UPS battery now and secure a dependable, long-lasting battery replacement for your UPS system.

Technical Specifications

Voltage12 Volts
Amp Hours7.5 Ah
Terminal TypeF2
Length (in.)5.95
Width (in.)2.56
Height (in.)3.7
Weight (lb.)21.0

Product Highlights

  • Brand Replacement : APC S400RMXLB3U
  • Manufacturer: SigmasTek
  • Product Type: UPS Batteries
  • Warranty: 12 Months
  • Bulk Orders: sales@batteryweb.com

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