Best Power LI 1420 (Fortress II) UPS High Performance Replacement Battery Set 50.64 lb
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Best Power LI 1420 (Fortress II) 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 SigmasTek SP12-18HR Battery Set for Best Power LI 1420 (Fortress II) UPS
Restore reliable backup power to your Best Power LI 1420 (Fortress II) with this brand new replacement UPS battery set. Designed for demanding, high-rate discharge scenarios, this kit delivers dependable performance, low self-discharge, and vibration-resistant construction so your UPS stays ready when you need it most. If you need a high-performance UPS battery that meets or exceeds OEM expectations for your Best Power LI 1420 (Fortress II), this long-lasting battery set is engineered to provide consistent power and peace of mind.
Key Specifications
- Included batteries: 4 x SigmasTek SP12-18HR
- Voltage: 12 Volts
- Capacity: 18 AH (amp-hours)
- Terminal type: Nut & Bolt
- 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
- Compatibility note: Requires use of all existing cables and hardware from original configuration to connect new UPS batteries
- Compatible UPS brand/model: Best Power LI 1420 (Fortress II)
- Battery brand: SigmasTek
- Typical applications included: Uninterruptible Power Supply (UPS) Units; Emergency Power Supply; Battery Powered Tools
Benefits
This replacement UPS battery set provides durable, long-life performance under heavy duty conditions. The high rate discharge design ensures the pack can supply higher power output over short periods—ideal for the LI 1420 (Fortress II) when a fast, reliable surge of energy is required. Valve regulated, spill-proof construction and high vibration resistance increase durability in rack-mounted or mobile installations, while low self-discharge helps preserve capacity during storage or long standby periods.
As a high-performance UPS battery option, this set is factory fresh and U.L. recognized with CE certification, giving you confidence the batteries meet recognized safety and performance standards. Whether you need a replacement UPS battery set for critical IT infrastructure, emergency power systems, or battery-powered tools, these SigmasTek cells are built to deliver consistent output and dependable cycle life. Technically trained staff test each battery set to ensure it meets or exceeds OEM specifications for the Best Power LI 1420 (Fortress II).
When uptime matters, choose a long-lasting battery solution that balances safety, performance, and value. This kit is an ideal choice for consumers and businesses seeking a reliable high-performance UPS battery replacement for the Best Power LI 1420 (Fortress II).
Ready to replace the batteries in your Best Power LI 1420 (Fortress II)? Order this replacement UPS battery set now to secure superior performance and reliable backup power. Purchase today and keep your system protected.
Technical Specifications
Product Highlights
- Brand Replacement : Best Power
- Manufacturer: SigmasTek
- Product Type: UPS Batteries
- Warranty: 12 Months
- Bulk Orders: sales@batteryweb.com
Payment & Security
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