UPS Scap 5V5A: Difference between revisions
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'''Note: After executing the shutdown command, the screen will briefly display "plymouth-poweroff.service" for approximately 1-2 seconds. If power is restored during this time, the system will fail to boot and will remain in a shutdown state until the next power outage and restoration. The probability of entering this dead zone is extremely low; it is not a concern for local use. However, for remote unattended use, please carefully evaluate the situation.''' | '''Note: After executing the shutdown command, the screen will briefly display "plymouth-poweroff.service" for approximately 1-2 seconds. If power is restored during this time, the system will fail to boot and will remain in a shutdown state until the next power outage and restoration. The probability of entering this dead zone is extremely low; it is not a concern for local use. However, for remote unattended use, please carefully evaluate the situation.''' | ||
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==Real-time monitoring of voltage and current== | ==Real-time monitoring of voltage and current== | ||
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This is how a supercapacitor UPS starts discharging when fully charged (capacitor voltage around 5.2V), then restarts charging when the capacitor voltage drops below 3V, until it is fully charged (capacitor voltage around 5.2V). | This is how a supercapacitor UPS starts discharging when fully charged (capacitor voltage around 5.2V), then restarts charging when the capacitor voltage drops below 3V, until it is fully charged (capacitor voltage around 5.2V). | ||
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==User Manual== | ==User Manual== | ||