Best Technologies LI 1420 (Fortress) UPS High Performance Replacement Battery Set 25.32 lb
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Best Technologies 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.
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Disclaimer
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🔹 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 Technologies LI 1420 (Fortress) UPS (SigmasTek SP12-18HR)
Bring renewed power and dependability to your Best Technologies LI 1420 (Fortress) Uninterruptible Power Supply with this replacement UPS battery set. Each kit contains two SigmasTek SP12-18HR batteries (12 Volts, 18 AH) designed for reliable, high-rate discharge performance. If your Fortress UPS needs a refresh, these factory-fresh batteries deliver the consistent output and low maintenance characteristics expected from a high-performance UPS battery solution.
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 Technologies LI 1420 (Fortress) UPS
Benefits
These replacement batteries are engineered to provide a long-lasting battery life and dependable energy delivery for your Best Technologies LI 1420 (Fortress). The high rate discharge design is perfect for UPS applications that demand higher power output over short intervals, such as bridging the gap during generator start-up or supporting critical loads through transfer events. The valve regulated, spill-proof construction minimizes maintenance and hazard, while low self-discharge helps preserve stored capacity between service cycles.
Built to withstand real-world conditions, the SigmasTek SP12-18HR set offers high vibration resistance and meets recognized safety standards (U.L. and CE). This high-performance UPS battery is ideal for a range of uses: Uninterruptible Power Supply (UPS) units, emergency power supply systems, and battery powered tools that require rapid, reliable power delivery. Our technicians test each battery to ensure it meets or exceeds OEM specifications, so you can trust the performance in your Fortress UPS.
Installation is straightforward but requires reusing the original cables and hardware from your current configuration—these batteries are supplied ready to install with nut & bolt terminals. With a 1 year warranty and factory-fresh condition, this replacement UPS battery set offers value and confidence for facilities managers and IT professionals focused on uptime and protection.
Don't wait for the next outage—purchase this high-performance replacement UPS battery for your Best Technologies LI 1420 (Fortress) today and keep critical systems protected.
Technical Specifications
Product Highlights
- Brand Replacement : Best Technologies
- Manufacturer: SigmasTek
- Product Type: UPS Batteries
- Warranty: 12 Months
- Bulk Orders: sales@batteryweb.com
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