Shall I let the battery drains to 0% before charging for the first time?General


  1. hajimeabc

    hajimeabc Well-Known Member

    Just bought the Note few hours ago. The Sales told me that I should let the battery drains until I cannot turn on the device. Then, fully charge the device. However, from the quick start guide from Samsung, it states that before using the device for the first time, one must charge the battery. Which way should I follow? I guess just like the Apple MacBook Pro, the first way might recalibrate the battery so that the battery life indicator from the Note becomes more accurate? Thanks.

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  2. ifb-online

    ifb-online Well-Known Member

    Personally I would charge fully and them let it go flat. And then repeat again and possibly once more. Don't let it stay flat for a long period though.

    Ian
    hajimeabc likes this.
  3. bonerp

    bonerp Well-Known Member

    you dont need to run these batteries flat they have no memory and will develop maximum charge over a few normal charges. I thought you could damage these by running them flat repeatedly.
    hajimeabc likes this.
  4. ifb-online

    ifb-online Well-Known Member

    My understanding is that Li-Ion batteries don't like being left flat for long periods, but if run flat and then immediaitely recharged fully (charge cycle) a couple of times should be OK, especially if the discharge rate is not too violent.

    Ian
    hajimeabc likes this.
  5. hajimeabc

    hajimeabc Well-Known Member

    Thanks for the warning.
  6. Argent009

    Argent009 Well-Known Member

    Lithium Ion batteries do not have "memory" so there's no need to discharge and recharge them at all. This practice stems from the days of old NiMH batteries and even older batteries. With today's batteries this practice is not required or even recommended. Just charge it when you need to and don't worry about letting it go flat. But no, you probably shouldn't leave it totally uncharged for a long time. Holds true for any rechargeable battery.
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  7. ifb-online

    ifb-online Well-Known Member

    Thus has nothing to do with memory effect or anything like that. These batteries are managed and monitored by the OS. A charge cycle or two should help calibrate the system so the battery status can be more precisely determined and so premature indication that the battery is flat is avoided. As I said previously, leaving the battery flat is not recommended at all.

    Ian
  8. ilordvader

    ilordvader Well-Known Member

    That does make sence
    Thanks
  9. Argent009

    Argent009 Well-Known Member

    The battery and the phone's ability to monitor it should have been calibrated at the factory, you should never have to do this yourself, if you do then you have a defective device. You should be just fine simply using it normally without any need to worry about discharging and recharging the battery on any device produced in the past decade or so and certainly none using Lithium Ion batteries. I can remember when you did have to do this with some batteries because of them having a memory but not for a long long time. I haven't owned a phone that required this since the 90's. And that phone was so big you needed wheels to lug it around. :)
  10. ifb-online

    ifb-online Well-Known Member

    Nonsense. Either you know nothing about batteries or you choose to ignore facts. Battery life changes with age so battery monitoring can maintain accurate indication of the status of the battery.
  11. Argent009

    Argent009 Well-Known Member

    I'm not talking about the battery's age, I'm talking about a new or relatively new battery and the difference between an older STYLE battery which has a memory and a Lithium Ion batter, which does not.

    And yeah, I've only been working in the technology field for 40 years, so I probably know very little. :)
  12. ifb-online

    ifb-online Well-Known Member

    Why did you bring up the old subject of memory effect in the first place, then? You still aren't making any sense. You seem to be stuck in 1972.

    Ian
  13. hajimeabc

    hajimeabc Well-Known Member

    I just charge the device whenever I have a chance. Does that sound good?
  14. ifb-online

    ifb-online Well-Known Member

    Yes that is good practice.

    Ian
    hajimeabc likes this.

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