this post was submitted on 28 Jul 2023
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Stop buying battery-powered things when the wired version is perfectly fine. Might not work for all devices, but your mouse and keyboard will always rest on your desk... why the need to power it with batteries that will eventually fail? Let alone the added cost of batteries, and the bluetooth module that those devices would need to communicate.
Plus, added reliability!
And if you do need something that runs on batteries (like a flashlight) try to get one that uses 18650 lithium batteries. 18650s were/are used in laptop packs and a ton of other things so they are very easy to find and last for years even used. One old laptop pack can provide 3-9 cells. Just be sure not to use damaged ones.