• dustyData@lemmy.world
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    9 hours ago

    Trickle charging does not harm batteries. On the contrary, the slower you charge a battery the safer it is. This is why all battery protection reduces charging wattage as the battery gets more and more full. Fast charging damages batteries, faster charging means faster degradation. There’s no way around that, it’s just physics, entropy comes for us all. Battery makers are just betting you’ll buy a new device before it becomes noticeable.

    • Buffalox@lemmy.world
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      5 hours ago

      Trickle charging does not harm batteries. On the contrary, the slower you charge a battery the safer it is.

      Charging when the battery full or very close to it is absolutely harmful, and that’s what trickle charging does. It especially harmful if the charger isn’t 100% accurate, and especially for Lithium batteries.
      Apparently some people also use the term for just slow charging in general, but this is obviously what I meant in this context.
      Trickle charging compensates for self discharge and the idle power used, so even when accurate, to keep charging a little bit to maintain a 99%-100% charge is definitely harmful.
      It’s way better to only charge to 80% for instance. Which is the reason all fast charging times for cars a measured up to 80%.

      Trickle charging is damaging if for instance you charge your phone when you go to bed and don’t disconnect the charger until morning, that means many hours of trickle charging at near full capacity.

      Because my phone charges fast, it never trickle charges for long at near 100%.

      • dustyData@lemmy.world
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        5 hours ago

        Phones have had pretty good battery management for many years now. My phone adaptive charge gets to 80% and stays there without charging until 20 minutes before my alarm when it activates charging again to get to 100% exactly as the alarm goes off. The default behavior is a basic care that makes it so the battery stops charging at 100%, waits to drop to 95% then goes back again to full in a cycle. The risk of overcharging from leaving a phone charger connected overnight has been null for about a decade. Fast charging, on the other hand will always degrade the battery. It is way too much tension over way too short of a time span.

        Trickle charging has only ever meant keeping electrical voltage on a full battery for acid batteries (actually overcharging). It has never meant that for consumer electronics.

        • Buffalox@lemmy.world
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          5 hours ago

          It is way too much tension over way too short of a time span.

          Except charging speed of a phone depends on the capability of the battery used for that phone, and new batteries that are made for it, can handle way faster charging than older batteries.

          My phone adaptive charge gets to 80% and stays there without charging until 20 minutes before my alarm

          Oh my god, that is the absolute worst. So the day you are extra busy and have to get up a little earlier than usual, and depend more on your phone than normal, it’s only charged to 80%! That’s exactly the kind of unintelligent solutions I hate. They always fuck up when it’s most inconvenient.

          the battery stops charging at 100%, waits to drop to 95% then goes back again to full in a cycle.

          So repeated charging from 95% to 100% which is clearly not good for the battery.