How to fix a Best Power Fortress LI520 that always runs on battery?
If your Best Power UPS always runs on battery power, ensure the power cord is fully plugged into both the UPS and the wall outlet. If it still runs on battery, try a different outlet. You may also need to replace the fuse or adjust the DIP switches that control Line Sensitivity and Input Voltage Range.
What to do if Best Power Fortress LI520 UPS turns off immediately after starting?
If your Best Power UPS turns off immediately after starting, the batteries might be completely discharged and utility power isn't available. Ensure the UPS is plugged in and allow it to charge overnight. Then, restart the UPS. Note that the UPS cannot restart during a power outage, as it requires utility power to operate and recharge the batteries.
General| Brand | Best Power |
|---|---|
| Model | Fortress LI520 |
| Category | UPS |
| Language | English |
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