Dell Outlet on Ebay has the Latitude 3140 laptop, an excellent Home Assistant platform on sale for $176. A Raspberry Pi 5 or NUC with the hardware needed for these features would cost far more. The same machine is nearly 2x more on the regular Dell Outlet site.
Debian 12 supported out of box - no additional drivers needed
Fast N200 Intel processor - ~60% faster than a Raspberry Pi 5
256gb SSD
8GB ram
Advanced BIOS options
OpenVino support for Frigate
BIOS battery management. Can limit charge to 75% for years of battery life
6 hour indicated battery life at 75% charge
Very low power usage - ~6 watts when running Home Assistant with several USB devices
Fanless and completely silent
Built like a tank
Negatives:
Built like a tank. Chunky for a small laptop
No integrated Ethernet port
Mediocre screen
I bought one of these last year when it was on sale from another vendor and have been really happy with it, especially for the cost.
Every machine has advantages and disadvantages, but I’m not sure why having a screen and a battery fall into the disadvantage category. The Aliexpress machines have some serious disadvantages including fans and an almost complete lack of support for most of them. And long-term support is a fantasy.
Dell sucks in many ways, but their support is in English and they produce firmware updates for several years after a product is released, especially for machines used by enterprise customers like this one.
Besides, if you add a UPS (and they all have batteries) to any of those Aliexpress mini PC’s you’re well over the price for this machine even with a gigabit Ethernet adapter.
For me $70 extra for a silent system with display, keyboard, UPS, a real warranty, and long-term support is a bargain.
Display and keyboard are unnecessary bulk in my closet when I run everything headless, but fair. Lithium batteries in laptops and tablets don’t last long when constantly plugged in and can spontaneously catch on fire if they’re not watched. You can get N100 mini PCs on ali express without fans.
I didn’t notice this before, but soldered ram is a non-starter. With 8GB of ram, you’re not gonna be able to run anything besides maybe jellyfin and home assistant. Trying to combine jellyfin and nextcloud will run out of ram, and there’s no slack for a container orchestrator like Kubernetes to automate container management. The Ali express boxes often come with 16GB, and its super easy to upgrade to 32/48gb for less than $100 when needed. You’d get 2-6x more capacity with a system with SO-DIMMs, at a cheaper price.
There are literally billions of lithium batteries in use and you have a better chance of being struck by lightning that having a lithium battery fire. Your concern about the battery life isn’t realistic either. These batteries last for many years when the charge is limited to less than 100% and can be replaced when they finally wear out. If you run a UPS you’ll eventually need to replace those batteries too and your backup time will be usually be measured in minutes rather than hours.
As far as the ram limitation is concerned, it’s plenty for a supported Home Assistant installation and that’s exactly what this post is about.
The #1 cause of lithium battery fires is improper charging, you can find anecdotes of phone and tablet batteries puffing up from being charged too much:
https://www.reddit.com/r/homeassistant/comments/yoitld/battery_bloating_in_wall_mounted_tablets/
But fair enough, you might be able to avoid a potential fire by setting a charge limit.
Not on an N95/97/100 as they support max 16… https://ark.intel.com/content/www/us/en/ark/products/231803/intel-processor-n100-6m-cache-up-to-3-40-ghz.html so they can be repaired, but not upgraded.
Alder lake minis work fine with 48gb dimms
https://www.reddit.com/r/homelab/comments/1bd892o/intel_n305_mini_homelab_with_48gb_ram_by_one_stick/?chainedPosts=t3_13npvng
the ram support is just a recommendation, as that’s all that they’ve tested