Keep your internet online during prolonged power outages.
Backup Power for more that 7.5 hours.
Device List:
| Function | Device | Model | Volt | Rating | W |
| Vumatel CPE/ONT | Raycore | RC-CP9SZ-NNN2-SMNQ | 12V | 1.0A | 12 |
| ISP Router | Zyxel | EMG3525-T50 | 12V | 1.5A | 18 |
Total Wh = (12+18) = 30
- Internal & ISP router connected to 12V port.
Theoretical backup time for Power-Buddie DC UPS 75Wh = 150 Minutes
This is calculated (UPS Wh (75) \ Total device Wh (30)) * 60 minutes
For the above mentioned scenario, the Power Buddie DC UPS 75Wh (24000 mAh) provided backup power for 464 minutes.
In comparison, a generally available 8800 mAh DC UPS provided backup power for 240 minutes.
Why does it appear that the UPSes are performing far better than what they are rated for? Most devices, although not always the case, use substantially less Watts than their maximum rating. Hence why it seems that the UPSes are performing better than expected. The theoretical maximum of 30W were never observed, the UPS reached a maximum of 10W and averaged on between 7 and 8W.
