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SigmasTek  |  SKU: BW-4923

APC BACK-UPS BE350T UPS High Performance Replacement Battery 2.98 lb

19% off
New arrival
Sale price $28.99 USD Regular price $35.99
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Replacement battery for APC ES BACK-UPS BE350T UPS unit
High rate discharge for reliable UPS performance
Valve regulated, spill-proof, and low self-discharge design
UL recognized, CE certified, and factory fresh
1-year warranty included for peace of mind
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

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


Volts & Amps

12 Volts | 3.5 Ah

Terminal Type

F2

SigmasTek SP12-3.5HR Replacement for APC ES BACK-UPS BE350T — Compatible with APC ES BACK-UPS BE350T

Restore reliable backup power to your APC ES BACK-UPS BE350T with this SigmasTek SP12-3.5HR replacement UPS battery. Designed for compatibility and strong performance, this factory-fresh 12 Volt 3.5 Ah SLA battery delivers dependable runtime for critical systems. It’s an effective, high-performance UPS battery replacement that meets the needs of homes and small businesses requiring consistent emergency power.

Key Specifications

  • Compatible UPS Model: APC ES BACK-UPS BE350T
  • Manufacturer / Brand: SigmasTek (SP12-3.5HR)
  • Voltage: 12 Volts
  • Capacity: 3.5 Ah
  • High Rate Discharge Design: Yes
  • Construction: Valve Regulated Spill Proof (sealed)
  • Low Self-discharge: Yes
  • High Vibration Resistance: Yes
  • Certifications: U.L. Recognized and CE Certified
  • Condition: Brand New, Factory Fresh
  • Warranty: 1 Year Warranty
  • Terminal Type: F2

Benefits

This replacement UPS battery emphasizes durability, performance, and safety. The valve-regulated design means maintenance-free operation and no spills, while low self-discharge preserves capacity during storage for longer shelf life. Built to handle high-rate discharges, it supplies the surge power needed for short bursts during UPS transfers and equipment start-up, making it a reliable, long-lasting battery solution for UPS systems, emergency power supplies, and portable tools.

With U.L. recognition and CE certification, the battery meets strict safety and quality standards. The SigmasTek SP12-3.5HR is factory-tested to ensure it meets or exceeds OEM specifications, giving you confidence in performance and compatibility with your APC ES BACK-UPS BE350T unit. Fast shipping from inventory means minimal downtime when replacements are required.

If you need advice on installing or selecting the correct replacement for your APC ES BACK-UPS BE350T, our customer service team is available at .

Order now to secure a high-performance UPS battery that restores dependable backup power—buy your replacement for the APC ES BACK-UPS BE350T today.

Technical Specifications

Voltage12 Volts
Amp Hours3.5 Ah
Terminal TypeF2
Length (in.)5.24
Width (in.)2.64
Height (in.)2.36
Weight (lb.)2.98

Product Highlights

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

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