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SigmasTek  |  SKU: BW-4744

APC ES BACK-UPS BF350-IT UPS High Performance Replacement Battery 3.5 lb

17% off
New arrival
Sale price $29.99 USD Regular price $35.99
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High rate discharge design for powerful short-term output
Valve regulated spill proof construction for safe, maintenance-free use
Low self-discharge extends shelf life and readiness
High vibration resistance for durability in demanding environments
U.L. recognized and CE certified for guaranteed safety and quality
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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.

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


Volts & Amps

12 Volts | 5.5 Ah

Terminal Type

F2

SigmasTek SP12-5.5HR Replacement Battery for APC ES BACK-UPS BF350-IT UPS

When your APC ES BACK-UPS BF350-IT needs renewed backup capability, the SigmasTek SP12-5.5HR replacement UPS battery is a direct-fit, high-performance choice. Designed for short-term high-current delivery and reliable compatibility, this replacement UPS battery ensures your APC device can handle outages, brownouts and brief interruptions while safeguarding critical electronics and networking gear.

Key Specifications

  • Model: SigmasTek SP12-5.5HR
  • Voltage: 12 Volts
  • Capacity: 5.5 Ah (amp-hours)
  • Terminal: F2
  • Design: High Rate Discharge Design
  • Construction: Valve Regulated Spill Proof Construction
  • Features: Low Self-discharge
  • Features: High Vibration Resistance
  • Certifications: U.L. Recognized and CE Certified
  • Condition: Brand New, Factory Fresh
  • Warranty: 1 Year Warranty
  • Compatible with: APC ES BACK-UPS BF350-IT UPS
  • Brand: SigmasTek

Benefits

  • Durability: Robust valve-regulated construction and high vibration resistance help the battery withstand routine use inside UPS cabinets and mobile installations.
  • Long life: Low self-discharge chemistry provides extended shelf life and readiness, making this a dependable, long-lasting battery for backup applications.
  • High performance: Engineered for high rate discharge, this battery supplies rapid bursts of energy needed by UPS systems to keep equipment running or to allow safe shutdowns.
  • Certified safety: U.L. Recognized and CE Certified to meet industry expectations for safety and manufacturing quality.
  • Ideal uses: Suitable for Uninterruptible Power Supply (UPS) units such as the APC ES BACK-UPS BF350-IT, emergency power systems, and battery powered tools requiring strong short-term output.
  • Plug-and-play installation: Use all existing cables and hardware from your original configuration to connect this replacement UPS battery—no extra parts required.
  • Quality assurance: Each unit is brand new, factory fresh and backed by a 1 Year Warranty; our technical staff tests batteries to meet or exceed OEM specifications.

Ready to restore reliable backup to your APC ES BACK-UPS BF350-IT? Order this replacement UPS battery now. For assistance or product questions call . Buy with confidence and get a high-performance UPS battery shipped quickly—secure power protection for your devices today.

Technical Specifications

Voltage12 Volts
Amp Hours5.5 Ah
Terminal TypeF2
Length (in.)3.54
Width (in.)2.76
Height (in.)3.98
Weight (lb.)3.5

Product Highlights

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

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