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Joined 1 year ago
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Cake day: August 7th, 2023

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  • Nice info! A few notes:

    Volts are not energy. Volts are a component of electrical energy. The drop in voltage is because of the additional load on the circuit that the charger represents. Energy losses come out as heat. If something gets hot while it’s doing its job and its job is not to heat things it means that it’s got a loss of energy somewhere. I’d bet that the charger warms up in use, and the loss is likely greater than the 1.75% loss that you were thinking you had with the voltage sag.

    L1 charging is less efficient for a few reasons, but the biggest increase you get in efficiency from the L2+ charges is time. Triple the charge rate gets you full in an afternoon rather than overnight. But then you can parlay that into cost savings by timing your charge to off-peak times and charge up on cheaper electricity, if it is available in your area.

    Electric cars do have an easily measurable range drop in cold weather for the reasons you outlined. Gas cars really shine in cold weather because not only do they not perform measurable worse in terms of range when the thermometer drips, but they also make their own heat, ALL THE TIME. In electric cars you have to use battery power to heat both the battery and the cabin, which is yet another drain on range. But, that gas combustion heat is loss in the summer when you’re not using it. Like the waste from your charger, but this time it also comes with emissions.


  • Sure, it can serve files up to players that can decode them. You’re going to be absolutely unable to do any transcoding at all and if you try to serve up anything with a bitrate higher than the network adapter can handle you’re gonna have problems. I bailed on using a Pi4 as a jellyfin server and got a chepo N-100 based box off Amazon (BeeLink something something with 2 NICs) for under $250 and haven’t looked back.

    You might be fine if you’re sticking to small files that are handled natively by their players. It only costs your time to try it out.