EVI 850VA / 480W Line Interactive UPS (EP-UPS850UU2-UK)
Ensure continuous operation for your critical electronics with the EVI 850VA Line Interactive UPS. Designed for small offices, home workstations, and point-of-sale systems, this unit provides reliable backup power and voltage stabilization. Featuring built-in Automatic Voltage Regulation (AVR), a cold-start function, and intelligent battery management, it protects your equipment from outages, surges, and damaging voltage fluctuations.
Product Features
Enhanced Power Capacity
With 850VA/480W of output power, this UPS supports a wider range of equipment than basic models, making it suitable for small business workstations, networking gear, or a complete desktop setup with peripherals.
Automatic Voltage Regulation (AVR)
The integrated Boost and Buck AVR technology actively corrects both low and high voltage conditions (typically within a 160V-270V range) without draining the battery, providing stable power and prolonging battery life.
Cold Start Functionality
Enables the UPS and connected devices to be powered on directly from the battery, offering critical functionality during extended power failures or for system testing when mains power is unavailable.
Intelligent Battery Management
Utilizes smart charging algorithms to optimize battery performance and lifespan, preventing overcharging and ensuring the sealed lead-acid battery remains reliable for when backup power is needed most.
Universal Outlet Compatibility
Two universal output sockets accommodate various plug types, providing flexible connectivity for your equipment without the need for adapters.
Clear Status Monitoring
LED indicators and audible alarms provide immediate feedback on operational status, battery level, and fault conditions, allowing for quick user response.
Product Specifications
- Capacity: 850VA / 480W
- Topology: Line Interactive
- Input Voltage Range: 140V – 290V (AVR Range: ~160V-270V)
- Output Voltage: 230V ±10%
- AVR: Yes (Boost and Buck)
- Output Waveform: Simulated Sine Wave
- Output Sockets: 2 x Universal Outlets
- Battery: 12V Sealed Lead-Acid
- Typical Backup Time: 10–20 minutes (varies with load)
- Special Features: Cold Start, Intelligent Battery Management
- Dimensions (L x W x H): Approx. 310 x 130 x 160 mm
- Weight: ~4.2 kg
- Warranty: 2 Years on UPS, 1 Year on Battery



