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I just use a regular clunky 650VA UPS with a lead acid battery. Disadvantage is size, but they do seem to work and the batteries last long enough. Most have USB
by sgt 7y ago
I just use a regular clunky 650VA UPS with a lead acid battery. Disadvantage is size, but they do seem to work and the batteries last long enough. Most have USB output for getting info on what the UPS is doing, battery level etc, which you can then connect to the Pi.
- segfaultbuserr 7y agoI seriously don't recommended using it (at least without doing some researches first). Many UPS units are optimized for 50%-80% load. If you put a very light load on an office UPS, like a lamp, a modem or a Raspberry Pi, some UPS's inverter will drain itself quicker before the load even drains battery. Some UPS have a light-load powersave feature, they don't even activate themselves when there's little load. Also, most office UPS is designed for short loss of power, not as a longterm battery-backup, so it will keep beeping until it's dead. Depending on what the OP is trying to do, this may be unacceptable. Due to the above problems. If I chose to use a 110/220 V UPS, I would at least try finding one designed to supply backup power to routers and modems to ensure that they don't have this problem.
- sgt 7y agoThat's very interesting. I did not know this. I saw your other response, it almost feels like the other options are not really optimal either. I guess the 5-volt power board is the best? But browsing through the Aliexpress results, I could not find anything that comes already wrapped up in a box and ready for use, as you would with a normal UPS. I suppose most people prefer that.