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SigmasTek  |  SKU: BW-4927

APC BACK-UPS ES BE350ES UPS High Performance Replacement Battery 2.98 lb

22% off
New arrival
Sale price $28.99 USD Regular price $36.99
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Replacement battery for APC BACK-UPS ES BE350ES UPS unit
High rate discharge for UPS and emergency power use
Valve regulated, spill-proof, and low self-discharge design
UL recognized, CE certified, and factory fresh
1-year warranty for reliable long-term use
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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 | 3.5 Ah

Terminal Type

F2

SigmasTek SP12-3.5HR Replacement for APC BACK-UPS ES BE350ES

Restore dependable backup power for your APC BACK-UPS ES BE350ES with this brand new SigmasTek SP12-3.5HR replacement UPS battery. Built for compatibility and consistent performance, this battery combines robust construction and tested reliability to keep your BE350ES running when power fails. Remember to use all existing cables and hardware from your original configuration to ensure proper installation of this replacement UPS battery.

Key Specifications

  • Brand: SigmasTek
  • Model: SP12-3.5HR
  • Voltage: 12 Volts
  • Capacity: 3.5 AH
  • Design: High Rate Discharge Design
  • Construction: Valve Regulated Spill Proof Construction
  • Feature: Low Self-discharge
  • Feature: High Vibration Resistance
  • Certifications: U.L. Recognized and CE Certified
  • Condition: Brand New, Factory Fresh
  • Warranty: 1 Year Warranty

Benefits

This high-performance UPS battery is engineered to meet the demands of environments where immediate, high current output is necessary. The high rate discharge design supports the BE350ES in delivering the surge power required during brief but critical outages. As a long-lasting battery solution, the low self-discharge characteristic helps maintain stored charge and reduces maintenance frequency, improving overall lifecycle value.

Valve regulated, spill-proof construction enhances safety and simplifies installation and maintenance. High vibration resistance ensures reliable operation even in settings where movement or vibration might otherwise stress components. Certified to U.L. and CE standards, this replacement UPS battery provides both safety and regulatory compliance for peace of mind.

Common uses include Uninterruptible Power Supply (UPS) units such as the APC BACK-UPS ES BE350ES, emergency power systems that must provide immediate backup, and battery-powered tools requiring short bursts of high current. Each battery is factory fresh and pre-tested by our technical team to meet or exceed OEM expectations, offering consistent, dependable performance.

When you need a reliable replacement UPS battery for the APC BACK-UPS ES BE350ES, choose the SigmasTek SP12-3.5HR for tested quality and proven performance. Purchase now to secure a long-lasting battery with fast shipping and a 1 year warranty.

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

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