Li-Ion-powered DC-output uninterruptible power supply
DC UPS is a lithium battery-powered uninterruptible power supply, which can provide backup power to devices like routers, switches, modems, single board computers, etc.
In contrast to commercially available UPSes, it uses off-the-shelf 18650 Li-Ion cells and outputs DC voltage directly.
This is significantly more efficient than providing AC power through an inverter.
The DC UPS provides backup power in a power outage without any interruption.
So called “Offline UPS” will have a short switching delay/interruption in power delivery, which can influence sensitive devices. Traditional “Online UPS” are expensive and waste a lot of power internally.
DC UPS size in comparison to a commercially available lead-acid UPS
Integrated prometheus exporter provides a modern API to monitor temperatures, voltages, etc. via tools like Grafana:
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