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Joined 1 year ago
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Cake day: August 9th, 2023

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  • I’ve been looking at upgrading our battery bank, stationary and in temperate climate so most pros and cons don’t apply.
    The only one that matters to us is usable Joules per dollar. You’d have to make your own spreadsheet with local pricing but for us assuming 95% usable lifepo and 50% usable agm, agms do come out be be slightly cheaper.
    However, since lifepos are expected to last about twice as long we’re going with lifepos as they will be a long term investement.

    If you’re only looking short term and planning on taking good care of them agms are still a valid choice.











  • The Problem you describe applies to reddit also, however the solution on lemmy is in your question.

    If a community gets scuttled on reddit, where are you going to go? How do you make the transition smooth enough that you’ll retain most of the community. You’re pretty up shit creek in this scenario.

    On lemmy if the main community is scuttled, there are already 5 new communities set up, with the same UX/app/login creds. The members can transition easily and carry on being wonderfully niche.

    Yes technically the owners of the instance “have all the control”, but it’s in the same way that a friend lending you their car “has all the control”. If they’re a dick or need it back you can just ask someone else. As opposed to reddit which is more like welfare, if the government decides to kick you off, you’re shit out of luck



  • Wh is a unit of energy, Ah is a unit of electric charge, basically how many physical electrons passed by.

    The voltage of a battery goes down gradually as it is discharged, so getting an accurate value for total energy dissipated is very complicated, as this varies greatly with the discharge profile and other physical factors like the age/health of the battery.

    The one thing that stays constant is the amount of electric charge a battery can provide. If it’s old, the voltage of that charge will be lower and go down quicker, but it will be the same total charge.

    I agree from a consumer point of view, joules would be a friendlier unit, however it is also a lot easier to game. Electric charge is a much more definite unit in an electrical engineering sense.

    If any of what I said is confusing please ask me to clarify, I’m assuming a basic level of electronic literacy but it’s hard to know what knowledge I’m taking for granted as an ex electrical engineer.