• 0 Posts
  • 26 Comments
Joined 1 year ago
cake
Cake day: July 3rd, 2023

help-circle













  • Jag jobbar hemma och sitter väl ca 10 h om dan, och upplevde samma problem som du.

    Men för två år sedan köpte jag efter rekommendation en pilatesboll att sitta på.

    Det tog nån månad att vänja kroppen vid en annorlunda belastning, men jag är väldigt nöjd. Smärta i ben och rygg är borta, och nu blir jag snarare trött vilket jag löser genom att ta en kort paus.

    Värt att prova tycker jag, och betydligt billigare.




  • I don’t have a good link to share, but from the research I did the difference is huge.

    LiFePO4 batteries have a higher capacity, longer lifetime, safer and higher power to weight density. Many come with built in communication, like my bluetooth connection.

    They are also expensive, but for my use case it’s much cheaper over time. I use about half a charge per day, which this battery should be able to sustain for 5-10 years. A lead acid battery would probably last months.




  • It’s very homemade, but I believe it’s built like a DC net for a boat. It’s a bluetooth connected lithium battery, boat cabling and fuse boxes and Victron charger and voltage transformers.

    I built it with “subnets” for different voltages. The battery is 24 V which feeds servers and a 34” monitor, then a transformer to 12 V for network gear, and several 5 V (USB) for a rack of raspberry pis. The is also a small 230 V transformer, for some gear that have built in PSU.

    The largest server is fitted with a custom DC PSU I found on e-bay, others are normal external PSU where I cut the cables.