Your PC flickers. The monitor dims. You lose the spreadsheet you've been building for three hours. A brownout doesn't need to be a crisis if something's already standing between your workstation and the mains.
The Defender 650VA/390W sits in that gap. Automatic Voltage Regulation (boost and buck) stabilises the input before it ever reaches your gear, so the little voltage sags that creep through an Australian substation stop matter. The LCD tells you exactly what's happening — no guessing, no silent failures.
No fans. No hum. You'll forget it's there until a power dip hits and your screen stays lit while the neighbour's goes dark.
Batteries are user-replaceable when their time comes, so you're not locked into a service call or a whole-unit swap. Cold-start capability means if the AC is down completely, you still get a clean boot to save work and shut down properly.
USB communication with the included NetGuard software gives you a live view of load, battery state, and input voltage from your desktop. Australian sockets on both UPS and surge-protected outlets — no adapters, no compromises.
Add to cart when you're ready. If the spec isn't quite right for your setup, call us and we'll sort the fit
| brand | PowerShield |
| model | Defender 650VA/390W |
| va_rating | 650VA |
| wattage | 390W |
| type | Line Interactive UPS |
| avr | Boost and Buck |
| display | LCD |
| cooling | Fanless (silent) |
| battery | User-replaceable, off-mode charging |
| cold_start | 1 |
| auto_restart | 1 |
| communication | USB with NetGuard software |
| sockets | Australian standard (UPS + surge protected) |
| surge_protection | 1 |
| warranty | 2 Year |
