this post was submitted on 18 Mar 2024
799 points (96.1% liked)

Technology

59390 readers
2543 users here now

This is a most excellent place for technology news and articles.

Our Rules

  1. Follow the lemmy.world rules.
  2. Only tech related content.
  3. Be excellent to each another!
  4. Mod approved content bots can post up to 10 articles per day.
  5. Threads asking for personal tech support may be deleted.
  6. Politics threads may be removed.
  7. No memes allowed as posts, OK to post as comments.
  8. Only approved bots from the list below, to ask if your bot can be added please contact us.
  9. Check for duplicates before posting, duplicates may be removed

Approved Bots

founded 1 year ago
MODERATORS
[email protected]
[email protected]
[email protected]
[email protected]
[email protected]
799
This was the first result on Google (lemmy.ml)
submitted 8 months ago by [email protected] to c/[email protected]
238 comments fedilink hide all child comments
 
you are viewing a single comment's thread
view the rest of the comments
[–] [email protected] 8 points 8 months ago* (last edited 8 months ago)

Now I don't know enough about electronics to know how wrong this is

Very, assuming the refrigerator in question typically runs on a typical power grid you'd find in the US or Europe (source: am electrical engineer)

Mainly because most compressors I'm aware of use alternating current (AC) motors, or at a minimum accept AC power. Batteries alone produce direct current (DC). The simplest way to make this work would involve an inverter (converts DC to AC). Cheap ones probably have at least a 10% conversion loss, so you're looking at an hour or two at most.

Edit: should also mention that discharging a typical lead-acid battery until it's all the way flat (realistically below ~11V) does irreparable damage. Might be cheaper to replace the contents of your fridge :)