Best Power LI 1420 (Fortress) UPS High Performance Replacement Battery Set 25.32 lb
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Best Power LI 1420 (Fortress) UPS High Performance Replacement Battery Set 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 | 18 Ah
Terminal Type
Nut & Bolt
Replacement Battery Set for Best Power LI 1420 (Fortress) UPS (SigmasTek SP12-18HR)
Keep your Best Power LI 1420 (Fortress) Uninterruptible Power Supply operating at peak reliability with this replacement UPS battery set. Each set contains two brand new SigmasTek SP12-18HR batteries (12 Volts, 18 AH) optimized for high rate discharge performance. These batteries are a practical, high-performance UPS battery upgrade to preserve runtime for critical systems and emergency applications.
Key Specifications
- Battery Model: SigmasTek SP12-18HR (set of 2)
- Voltage: 12 Volts
- Capacity: 18 AH (amp-hours)
- Terminal Type: Nut & Bolt
- Design: High Rate Discharge Design
- Construction: Valve Regulated Spill Proof
- Features: Low Self-discharge, High Vibration Resistance
- Certifications: U.L. Recognized and CE Certified
- Condition: Brand New, Factory Fresh
- Warranty: 1 Year Warranty
- Compatibility: Best Power LI 1420 (Fortress) UPS
Benefits
These replacement batteries provide a reliable, long-lasting battery option for the Best Power LI 1420 (Fortress). The high rate discharge design offers the necessary short-term power for UPS transfer events and surge demands, while valve regulated spill proof construction reduces maintenance and enhances operational safety. Low self-discharge ensures batteries remain ready for deployment after extended storage, and high vibration resistance supports reliable performance in demanding installations.
Certified to U.L. and CE standards and sold factory fresh, this high-performance UPS battery set has been tested to meet or exceed OEM expectations. Ideal applications include Uninterruptible Power Supply (UPS) units, emergency power systems, and battery powered tools needing consistent bursts of energy. Note that these batteries are supplied with nut & bolt terminals and require you to reuse existing cables and hardware from the original configuration for proper installation.
For IT managers, electrical contractors, and facilities teams, this replacement UPS battery set delivers dependable performance and value, backed by a 1 year warranty. The combination of tested quality, safety certifications, and targeted design makes this a smart choice for maintaining uninterrupted operation of your Fortress UPS.
Order your replacement batteries for the Best Power LI 1420 (Fortress) today — get a long-lasting battery solution that restores backup power quickly and confidently.
Technical Specifications
Product Highlights
- Brand Replacement : Best Power
- Manufacturer: SigmasTek
- Product Type: UPS Batteries
- Warranty: 12 Months
- Bulk Orders: sales@batteryweb.com
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