If I have a USB powered device, could I leave it plugged into a portable power bank (like the kind you charge your phone with) as a power outage backup? (lemmy.world)

submitted 2 months ago by MeatsOfRage@lemmy.world to c/asklemmy@lemmy.world

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Basically as the title says. We have semi frequent power outages where I live. The noise machine in my daughter's room goes out and wakes her up. If I were to buy a USB powered one, plug it into a power bank like one of those 10000ma ones you get for charging cell phones, would it have continuous power. Basically like a cheap UPS

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[-] empireOfLove2@lemmy.dbzer0.com 5 points 2 months ago

Yes, battery banks with at least two ports and pass through charging will handle it like this. The Anker bank I have (Anker 737) does this.
For long term use the battery cells may degrade in capacity and max current after a couple years of sitting at 100% charge, but that's probably not too big of a deal for you since the noise machine is probably fairly low power.

[-] Reverendender@sh.itjust.works 4 points 2 months ago

Connect it to a smart plug that you set to turn off for several hours periodically. When it shuts off, the Anker will have to start using its own power for a while, and since this will occurr regulary, it won't be sitting at 100% nearly as often.

this post was submitted on 14 Jun 2024

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