| MODEL | BK850 |
| Capacity | 850VA/480W |
| INPUT | |
| Voltage | 110/120 VAC or 220/230/240 VAC |
| Voltage Range | 81-145 VAC or 162-290 VAC |
| Frequency Range | 60/50Hz (Auto sensing) |
| OUTPUT | |
| Voltage | 110/120 VAC or 220/230/240 VAC |
| AC Voltage Regulation(Bat Mode) | ±10% |
| Frequency Range(Bat Mode) | 60Hz or 50Hz ± 1Hz |
| Transfer Time | Typical 2-6ms |
| Waveform(Bat Mode) | Simulated sine wave |
| Peak Efficiency(AC Mode) | >95%@ Full R load |
| BATTERY | |
| Battery Type & Number | 12V 9Ah*1 |
| Floating Charging Voltage | 13.7VDC |
| Charging Ability | 4-6 hours recover to 90%capacity |
| PROTECTION | |
| Full Protection | Short circuit, Overload,Battery discharge and overcharge,Surge protection |
| INDICATIONS | |
| Line Mode | Green lighting |
| Battery Mode | Yellow flashing |
| Fault | Red lighting |
| ALARM | |
| Battery Mode | Sounding every 10 seconds |
| Low Battery | Sounding every second |
| Overload | Sounding every 0.5 seconds |
| Battery Replacement Alarm | Sounding every 2 seconds |
| Fault | Continuously sounding |
| COMMUNICATIONS | |
| USB/RS232/SNMP(options) | Supports Windows 2000/2003/XP/Vista/2008, Windows 7/8 Linux Unix and MAC |
| ENVIRONMENT | |
| Humidity | 0-90% Relative Humidity 0-40°C (Non-Condensing) |
| Noise Level | Less than 40dB |
| Dimension | 297*101*142mm |
| Net Weight | 4.9KG |