• 0 Posts
  • 765 Comments
Joined 1 year ago
cake
Cake day: June 19th, 2023

help-circle

  • You don’t even need to manually keep your battery in the 20-80 range nowadays since almost every charge controller automatically monitors temperature and adjusts charging parameters to not damage the battery.

    Sort of. The charge controller will limit charging current if too far outside normal temperature ranges. But it will still charge all the way to 100% unless you manually limit that with the settings on your device.

    Heck, lithium ion batteries nowadays last longest the longer they’re plugged in.

    That’s actually incorrect, charging a Li-ion battery to 100% is significantly worse for it than charging to 80%, and keeping it at 100% plugged in is even worse. Which is why most devices will have the option to stop charging at 80% or near there instead of going all the way to 100%.

    Charging while warm is also much worse than charging below 50 degrees F or so.




  • Without a ground there is nowhere for a surge to go, permanent damage is much more likely. Surge protectors or a UPS will not protect against surges at all without a ground.

    There’s also no ground so the chassis may have enough voltage on it to cause a shock if you touch it. This could also damage components as they are not grounded and touching things can introduce high voltage from static electricity which will have nowhere to go.

    Additionally if you have ethernet connected to it the system may end up grounding itself through the ethernet cable, if the device at the other side does have a ground, which could cause issues.

    So it basically just means you have a much higher chance of damaging the parts, or injuring someone touching things.













  • MangoPenguin@lemmy.blahaj.zonetodatahoarder@lemmy.mlRenewed drives
    link
    fedilink
    English
    arrow-up
    2
    ·
    edit-2
    16 days ago

    I’m running several used (“renewed”) enterprise SAS HDDs and enterprise SATA SSDs. They’ve been solid so far.

    The HDDs came with about 30k hours each which is not bad at all, and the SSDs only had around 100 TB written out of the total 6.2 PB rating.

    I’m not sure I would do used with standard consumer HDDs, they typically don’t last as long and are likely abused a lot more in a desktop PC vs a datacenter server.

    As always have proper backups in place, all drives fail eventually no matter where you buy them.