Have recently set up Hubitat Elevate and also Konnected Alarm Panel. Looking for something to keep these going when the power goes out. Konnected had some Lithium mini UPS's but they don't ship internationally as Lithium battery. I live in Australia. So after any ideas to try.
I've found something like this which could be good as also need to charge 5v temperature probe:
But I also have the lead battery left over from my old wired alarm system so is it possible to use something like this for a few devices? And wire up with some DC Terminal Screw Adaptors??
Or lastly could I 'create' something new altogether fromcircuits like this:
The last one might be over my head. But looking for suggestions. The old metal alarm box has a heap of room left in it after I took out old panel and replaced with Konnected so can easily accommodate the battery and a panel of sorts.
Any thoughts or suggestions for anyone in Australia would be appreciated.
Thanks
Any of your above suggestions would work but I'm super cautious about buying 'mains' gear from China as a lot of it does not come compliant to our Aussie regulations (RCM). Just take extra care because you're home insurance may become void if disaster should occur.
What about just grabbing a small Eaton, APC or CyberPower UPS for your backup power plan ??
If it's just your HE and your alarm then you're unlikely to need more than a 650VA unit which would be under $100.
All that said, I pretty much did what you're asking by powering my Iris keypad with a small charger and chucked it into an explosion proof bag. Just for safety.
The charger Like this plugs into my UPS and charges up a couple of 3.7 v 18650 batteries which I've tapped off to power the Iris keypad as it was chewing batteries !
The 3.7v DC is dropped to 3.3v DC by the cable on route to the keypad inside the front door.
Not sure what you can find in Australia but I use one of these for my ISP box, pfSense box, Hubitat box, Lutron box, Insteon box, Google WIFi main puck:
They go on sale from time to time and use standard SLA batteries that are pretty easy to replace
For my Konnected I use this:
It is made for low power devices, has USB port on top and 2-prong outlets. I actually stuck my two Konnect modules right on the side of it, it has slots on the back made for mounting it to a wall. I don't recall where I bought mine, some local office supply store I think for maybe $30/ea, I bought a couple at the time.
The two of them each give me a couple hours of run-time at least and I can monitor my CyberPower UPS via USB with my pfSense box so there is probably a way to get power outage info to Hubitat from my pfSense box if I wanted to.
They also use standard SLA batteries bso shouldn't be a problem getting them to Australia. Sometimes you can find a used UPS at a thrift store or junk store for dirt cheap, they get chucked when they fail and almost always all they need is a new battery. I've kept units going for close to 20 years, just replacing batteries from time to time
I have a question about UPS's. I see where the one above says it is a sinewave but is it a pure sinewave or a simulated sinewave. I have been wondering if a simulated sinewave output would have an effect on the HE hub or any other device plugged into it.
Anyone have any problems using a simulated sinewave UPS with the HE hub?
The AC to DC converters used for low power devices are happy with just a square wave, they only see the DC, very few things really need a sine wave, AC motors will, but the CyberPower I linked to is a "pure" sine wave though even there what a "pure" sine wave is can be debated.
I've run plenty of other stuff on just the square wave a typical UPS puts out without any issues
Yea I think a pure sinewave is best. I know for a fact that the simulated sinewave can cause noise in many devices. So you wouldn't need a very large output UPS for the hub being that it pulls 2W or less. More devices more output of course.
Thanks for the info. I had forgotten about the compliance risk with 'mains' gear and I would rather not take a chance. I think I will rethink my strategy and look into the UPS options as suggested. Or at least stick to something that is 12v as I guess the risk is much less!!!
Thought I'd update since my power has been out for a bit over an hour.
I have three UPS's
One is what my ISP's fiber box connects to, it drives the gigabit internet into my house, it kept that up so my Internet stays up even in a power outage
CyberPower has my router, pfSense box, Lutron, Hubitat, Insteon boxes and an 8 port switch. After an hour it still shows 80 minutes of battery left
The small APC is only supplying power to my two Konnect modules in my closet. I don't know what the battery left is but after an hour it is still keeping those modules up.
So basically a nice test that all my stuff stayed up and connected
