81–90 of 171 posts
I use PoE extractors to power a few different devices in my house, including RPis and some non-PoE switches. It's ridiculously easy to use them, but you generally need to know the voltage you want ahead of time.
" the M1 Mac mini was the perfect hardware to test out PoE, as on idle, the device only consumes 6W. When some load is applied to the internals, that power draw can go up to 40W. After some thorough research, we found out that the maximum throughput of Power over Ethernet was 15.4W " They'll have to bump it up to 802.3bt (Poe ++) which can support 60W. Cool Project though, I've been wanting to mod my Mac Mini m1 to r…
Minor correction: 802.3bt added 51W (Type 3) or 71W (Type 4). 60W isn't a standard power level. Some switches support up to 95W per port with PoH.
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I could see it making sense in a 'van life' context to use a smaller local battery rather than plug everything in to your main leisure battery. Use the latter to charge Makita packs say and then run most other stuff off those (there's a decent amount of open 3D printable adapters for them, as well as third-party/AliExpress stuff).
Would make way way more sense to have a macbook that you can then charge direct from a DC battery over USB-C. With the mac mini you still have to work out how to power an external screen as well.
" the M1 Mac mini was the perfect hardware to test out PoE, as on idle, the device only consumes 6W. When some load is applied to the internals, that power draw can go up to 40W. After some thorough research, we found out that the maximum throughput of Power over Ethernet was 15.4W " They'll have to bump it up to 802.3bt (Poe ++) which can support 60W. Cool Project though, I've been wanting to mod my Mac Mini m1 to r…
I'm very skeptical of PoE now after 3 PoE adapters killed 3 Raspberry Pis I have. I wouldn't want to risk something more expensive to that shit. At this point I'd rather just have straight up 19V + and - cables bundled together with the Ethernet with some heatshrink around the whole thing to make it look like 1 cable.
" the M1 Mac mini was the perfect hardware to test out PoE, as on idle, the device only consumes 6W. When some load is applied to the internals, that power draw can go up to 40W. After some thorough research, we found out that the maximum throughput of Power over Ethernet was 15.4W " They'll have to bump it up to 802.3bt (Poe ++) which can support 60W. Cool Project though, I've been wanting to mod my Mac Mini m1 to r…
What's the goal of having a MacMini running off an external battery? I mean, it seems less cost effective than just getting a MB Air and not using the screen...
>power over Ethernet instead of AC Did they used to get air conditioning over Ethernet? This doesn't make any sense to me.
AC in the context of electricity has meant "alternating current" for literally more than a hundred years. This is a you problem, not OP's, so turn down the snark. https://en.wikipedia.org/wiki/Alternating_current
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What's the goal of having a MacMini running off an external battery? I mean, it seems less cost effective than just getting a MB Air and not using the screen...
Headless servers where you want a modular or easily removable battery backup. I really wish desktop PC power supplies would support such a thing. It seems stupid that we need to use a UPS with an inverter when the power supply should be rigged to accept DC input straight from a battery.
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No it just reads as kinda paranoid because li-ion cells typically become spicy pillows long after the device becomes obsolete. It's also trivial to avoid by limiting cell voltage. Many devices, most notably iPhones, automatically go into kiosk mode after charging for a few days for exactly this reason: https://support.apple.com/en-gu/HT208710
Thank you for taking the time to follow up! Definitely a bit paranoid - even if I'd prefer to call it robust :) I've had very bad luck in this regard... but haven't honestly used a laptop in probably a decade. I was pleasantly surprised to see my latest (dust-collecting) Lenovo will stop somewhere around 80%! Point being, sure - there are safety things... but batteries are consumables. I like these things to be easy-…
Replaceable, consumable batteries often get thrown out in the trash. ... and can set garbage trucks and recycling centers on fire.
https://www.waste360.com/safety/lithium-ion-batteries-are-ca...
https://www.dispatch.com/story/news/local/2023/02/09/garbage...
https://arstechnica.com/gadgets/2022/12/recycling-firm-fined...
https://gothamist.com/news/lithium-ion-batteries-a-growing-f...
https://www.abc.net.au/news/2023-05-29/garbage-truck-fires-c...
(and many more)
How does one make sure that removable, consumable, high capacity batteries are not discarded as trash but instead taken to the proper facilities to handle them?