APC S400RMBX120 Compatible Replacement Battery By SigmasTek 21.02 lb
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APC S400RMBX120 Compatible Replacement Battery By SigmasTek is backordered and will ship as soon as it is back in stock.
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Battery Care Tips
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
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
⚠️ 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 | 7.5 Ah
Terminal Type
F2
SigmasTek 12V 7.5Ah Replacement Battery — Compatible with APC S400RMBX120
Keep your APC S400RMBX120 UPS running at peak performance with the SigmasTek 12 Volt 7.5 Amp Hour replacement UPS battery. Built specifically for UPS applications, this battery delivers dependable runtime, steady voltage delivery, and the reliability you expect from a high-quality replacement UPS battery. Whether you’re maintaining network equipment, protecting a workstation, or ensuring continuous operation for critical systems, this SigmasTek battery is engineered to restore and extend the life of your APC S400RMBX120 with consistent, long-lasting battery performance.
Key Specifications
- Voltage: 12V
- Capacity: 7.5 Ah
- Terminal: F2
- Brand: SigmasTek
- Compatible UPS Model: APC S400RMBX120
Benefits
This SigmasTek replacement provides high-performance UPS battery capabilities that are ideal for demanding applications. Designed for durability, the battery resists common failure modes and delivers a reliable shelf life and service life under proper use. As a long-lasting battery option, it offers consistent recharge cycles and dependable discharge stability — critical for protecting sensitive electronics and preserving data integrity during outages. The tight F2 terminal connection ensures a secure, low-resistance link to the UPS, minimizing voltage drop and heat buildup.
Typical applications include use in UPS systems like the APC S400RMBX120, emergency power systems for small servers and networking gear, and backup power for home office or small business environments. This replacement is also well-suited for point-of-sale systems, security equipment, and other devices that require a sealed, maintenance-free lead-acid battery. As a high-performance UPS battery, it supports clean, consistent power delivery during brownouts, short interruptions, and full outages.
Choosing this SigmasTek replacement UPS battery helps ensure your APC S400RMBX120 continues to protect critical loads with a dependable source of backup power. It’s an affordable way to extend the life of your existing UPS and regain full runtime capacity without replacing the entire unit.
Ready to restore dependable backup power? Order this SigmasTek 12V 7.5Ah replacement UPS battery for your APC S400RMBX120 today and enjoy confidence in a reliable, long-lasting battery solution.
Technical Specifications
Product Highlights
- Brand Replacement : APC S400RMBX120
- Manufacturer: SigmasTek
- Product Type: UPS Batteries
- Warranty: 12 Months
- Bulk Orders: sales@batteryweb.com
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