APC BACK-UPS ES BE350 UPS High Performance Replacement Battery 3.5 lb
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APC BACK-UPS ES BE350 UPS High Performance Replacement Battery 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 | 5.5 Ah
Terminal Type
F2
SigmasTek SP12-5.5HR Replacement for APC BACK-UPS ES BE350
This SigmasTek SP12-5.5HR replacement UPS battery is engineered to restore reliable backup power to your APC BACK-UPS ES BE350 Uninterruptible Power Supply (UPS). Designed for compatibility, performance, and dependable operation, this 12 Volt 5.5 AH unit delivers the surge capability and steady discharge characteristics needed for short-duration, high-rate events. If your BE350 is showing low battery warnings or reduced runtime, this high-performance UPS battery provides an easy, cost-effective upgrade to get your UPS back to OEM-level performance. Please note: you must reuse the existing cables and hardware from your original configuration to connect the new battery.
Key Specifications
- Brand: SigmasTek
- Model: SP12-5.5HR
- Voltage: 12 Volts
- Capacity: 5.5 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
- Terminal: F2
- Warranty: 1 Year Warranty
- Compatible UPS Model: APC BACK-UPS ES BE350
Benefits
Built for durability and consistent performance, this SigmasTek SP12-5.5HR is a proven replacement UPS battery that offers long service life and reliable operation under high-rate discharge conditions. Its valve-regulated, spill-proof construction protects internal components and reduces maintenance concerns, while low self-discharge ensures the battery retains readiness during storage or infrequent use. High vibration resistance makes it robust in environments where movement or vibration occurs.
As a high-performance UPS battery, it is optimized for delivering short bursts of high power—ideal for when your APC BACK-UPS ES BE350 needs to support critical equipment during an outage. Expect stable performance for connected devices such as home networking gear, desktop systems, point-of-sale equipment, and other electronics. This unit is also suitable for emergency power supply applications and battery-powered tools that require dependable short-term energy delivery.
Technically tested to meet or exceed OEM specifications, this replacement UPS battery gives you confidence in both performance and fit. The included one-year warranty protects against manufacturing defects, and our factory-fresh supply ensures consistent quality.
Ready to replace the battery in your APC BACK-UPS ES BE350? Order this SigmasTek SP12-5.5HR high-performance UPS battery today for a long-lasting battery solution and fast shipping. Buy now to restore reliable backup power.
Technical Specifications
Product Highlights
- Brand Replacement : APC BACK-UPS
- Manufacturer: SigmasTek
- Product Type: UPS Batteries
- Warranty: 12 Months
- Bulk Orders: sales@batteryweb.com
Payment & Security
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