How do I learn to relax? Even on my days I give myself off, if I don’t have a reasonable list of accomplishments (meals cooked, laundry, cleaning, organization) I feel shitty and can tell I’m moving in a negative mental direction.
Can I charge a 36V battery from a 52V battery with a DC-DC converter? I don't need more than the 100W that goes in the charge port (I probably need to limit it to that?) Currently I'm using an inverter pack and the AC charger as a range extender but I have a couple 52V packs that would be more energy in the same weight, don't want more 36V packs and this setup is temporary on this bike, but would get used a few times per year.
This is a question with fractal complexity. However, assuming that the 36V battery has built in electronics to handle the charging (I.e. protecting the battery from overcharge/discharge, adjusting charge current as the battery becomes more charged) and you convert the 52V battery to be within the range which the 36V battery(‘s charger) can accept: yes that should be okay.
It’s a good sign if the 36V battery came with a generic AC-DC power brick, try to match that voltage.
Disclaimer: I’m not specifically knowledgeable about ebikes.
Yeah if you’re feeling appropriately cautious put a fuse on the output which matches the rating of the stock ac/dc (and optionally a fuse on the input which matches the step down’s rating). An additional bit of caution would be to monitor the voltage out of the brick and make sure it stays constant throughout the charge cycle.
Note it’s common for batteries (chargers) to be unable to charge and discharge simultaneously.
Nix is a weird build system and package manager but it’s the last one you’ll ever need to learn. No more apt, yum, pip, conda, setuptools, npm, pnpm, conda, cmake.
NixOS takes that and uses it for the whole system. Define the entire state of your system, from the kernel to the users and programs and their configuration, in a single config file. You don’t need to learn the config file format for sudo, or mariadb, or Postgres, or where to put them or how to apply them.
…Just add a line in your configuration.nix. Nvidia driver update gives you a black screen? Just choose the previous version of your configuration in the bootloader. Need to patch your kernel to fix your touchpad driver? You don’t need to learn how to build and install the kernel and add it to your bootloader, just add a line to your config which says “use this patch for the kernel”.
Millimeters of mercury is one of the most ridiculous units. It's not SI or US customary, and it's the same order of magnitude as a hectopascal. Just use hectopascals instead please.
From ca. 1995 to about 2015, we have a really strong record of average daily life thanks to ubiquitous digital cameras capturing all minutiae of our existence. After that, I foresee that the historical record is gonna be polluted beyond hope by generative A.I. content.
The United States has the most expensive transportation infrastructure in the world. That’s because we refuse to learn from experts, other countries, and our own history.
This is probably just another temporary obsession but for the moment I’m happiest when I avoid code and instead spend my work time running cables. Maybe I should’ve been a low voltage contractor or electrician.
