APC ES BACK-UPS BF350-UK UPS Compatible Replacement Battery 3.5 lb
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APC ES BACK-UPS BF350-UK UPS Compatible 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 ES BACK-UPS BF350-UK
Restore dependable backup power to your APC ES BACK-UPS BF350-UK with the SigmasTek SP12-5.5HR replacement UPS battery. Built for performance and reliability, this pack delivers the high-rate discharge capability required by many UPS units and emergency systems. Use your existing cables and hardware from the original setup to install this direct replacement safely and quickly.
Key Specifications
- Brand: SigmasTek
- Model: SP12-5.5HR
- Compatible UPS Model: APC ES BACK-UPS BF350-UK
- Voltage: 12 Volts
- Capacity: 5.5 AH
- Terminal Type: F2
- Design: High Rate Discharge Design
- Construction: Valve Regulated Spill Proof Construction
- Self-discharge: Low Self-discharge
- Durability 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 designed to deliver reliable, repeatable power for short, high-current events. Its high-rate discharge design supports the APC ES BACK-UPS BF350-UK when higher output is required for brief periods, making it an excellent option for protecting sensitive electronics during outages. The valve-regulated, spill-proof construction minimizes maintenance and reduces risk, while low self-discharge helps retain charge for longer storage periods.
Durability features such as high vibration resistance and recognized safety certifications (U.L. and CE) mean the battery is well-suited to a variety of installations, from home and small office UPS units to emergency power supply systems and battery-powered tools. Technically tested to meet or exceed OEM expectations, this long-lasting battery gives peace of mind and predictable run-times when you need them most. Whether replacing an old pack or stocking spares for maintenance, this unit is a practical, cost-effective choice.
Don’t wait until the next outage — purchase this replacement UPS battery for APC ES BACK-UPS BF350-UK now and get fast shipping on an in-stock, high-performance UPS battery backed by a 1 year warranty. Buy today to ensure continuous protection for your equipment.
Technical Specifications
Product Highlights
- Brand Replacement : APC ES
- Manufacturer: SigmasTek
- Product Type: UPS Batteries
- Warranty: 12 Months
- Bulk Orders: sales@batteryweb.com
Payment & Security
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