I run my modem and router off an APC 1080 which also does my whole entertainment center. When nothing is running it’s around the 50w mark. Some of that is standby power but maybe only a few watts.
You could go for that unit @mutation666 linked second. Or something similar in size.
The batteries in units of that size are around 3-4ah. You could expect roughly 45 minutes of run time given a similar load.
I would recommend the nicer units personally. I have 4 APC units in my house.
They are. Pro tip, power sonic is usually considerably cheaper and is the OE for a lot of manufacturers.
Wish there was an easy way to 18650 battery pack for these bitches. Altho the LG add told me those are dangerous
I’ll second PowerSonic. They’re as inexpensive as any no name (terrible quality) batteries, while being very high quality and reliable.
There kind of is.
LiFePO in a 4s configuration. You lose some capacity but they will last a good long while.
Coming Soon L1Ups
I have both APC and Cyberpower units to run PCs that aren’t physically close to another.
I have the small unit that @mutation666 recommended (or one similar) to run my DSL modem and WIFI AP. The main thing for me was protecting them from the short power dips/brown outs and 15-30 second outages that can damage electronics. My power out here in the boonies is pretty bad, so I try to keep my electronics on UPS devices as a preventative measure. I’ve had good luck with both brands, just pick what’s on sale in your wattage needs and go from there. Don’t buy used because these things aren’t durable goods. Expect to replace them in 4-5 years.
This is just my $.02 from what I researched when I began purchasing mine over the past several years.
I’ve some Mikrotik stuff that’s powered off of 12V (9V-57V as per the label) DC barrel connector, and has poe out. The one that shipped with the wifi router is 12V 1A.
Just four 18650 batteries would have the right voltage and could power it for several hours. (That’d cost like $10-$15 for higher quality batteries on e.g. nkon.nl).
Not sure about cheap circuitry (charge controllers, boost/buck converter some kind of circuitry to switch between mains/battery power).
not to be that guy but you can probably make your own using parts off sites like adafruit/element14 if its just for a router/switch
idk if it would be cheaper but it would be much easier to service the battery which Will need replacing eventually
Could totaly have a solar (or other deep cycle battery) to work as a DIY UPS for some devices. Question is if you want to put the time into making one.
Me? Probably not. But it does sound interesting.
There’s a bunch of ready made TP4056 1A modules floating around AliExpress for 0.25eur a piece.
And then there’s slightly more powerful, glued with 3 to 5 batteries included, black box unmonitored 50gbp version on amazon. It’d be nice if there was something in between. Like a 20W / 50W board you can wire to your own batteries for like $5. (Batteries not included)
I’d be happy if I ever get my (not yet) solar powered esp32 weather station into a decent state - right now it’s a bundle of jumper wire on a proto board in a zippy bag in a drawer. That one has a TP4054 which is definitely not enough power for a router+poe accesspoints.
I like these for my network stuff. Fairly inexpensive user replaceable batteries too so that’s a plus.
I always buy higher-spec but refurbished UPS units. Currently using an old APC SmartUPS 1000XL for my comms cabinet, and a SmartUPS 750 that runs the phone base unit and modem etc in the hallway.
The 1000XL can take an external battery, which I intend doing, and wiring it in so it’ll run both the comms cab and the other stuff in the hallway.