1. Sanjay Ramoutar's Avatar
    Hi folks,
    So I recently bought a new battery for my Note 4, again, in under 6 months. I suspect the last one was not legit. This present one seems to be holding a proper charge for a whole day now. The girl in the store told me that I had to condition the battery by running it all the way down and then charging all the way up to 100% for at least three times. Is this right? I mean, I thought that lithium batteries don't really like being discharged until dead? Can someone tell me at what percentage I should charge my handset please? The battery is working well so far and I really don't want to mess it up. Thanks in advance.
    05-25-2017 07:07 PM
  2. B. Diddy's Avatar
    Modern lithium batteries do not need to be conditioned. See this guide: http://forums.androidcentral.com/amb...ml#post4271880
    05-25-2017 07:57 PM
  3. Sanjay Ramoutar's Avatar
    Modern lithium batteries do not need to be conditioned. See this guide: http://forums.androidcentral.com/amb...ml#post4271880
    Thank you for that info, was very useful. I think I need to read it back again to properly absorb everything, LoL. It also explains why my phone drops from 100% to 99% so quickly. Will leave it for the extra 30 mins tonight and see if it makes a difference.
    05-26-2017 08:13 AM
  4. B. Diddy's Avatar
    There's also an argument that topping off the charge on a regular basis is actually not ideal for the battery. This is the rationale for the 80/40 guideline that you may have heard of, which is to charge a battery to 80% (and not 100%), and start charging again when it gets down to 40%. From a practical standpoint, though, charging only up to 80% makes daily use a little more inconvenient, so 100% is fine.
    05-28-2017 01:25 PM
  5. natehoy's Avatar
    In general, proper battery management techniques are going to prevent extremely small amounts of wear and tear on a battery. That additional wear and tear does, in fact, add up. But not to a huge amount, really.

    On a phone with a sealed battery that small amount of wear and tear *might* add up to make the difference between "phone that doesn't last as long as it did when new but is still okay" to "time for a new phone" in as little as a year. At least for me. Your mileage may vary.

    80/40 is a good rule to eke the most out of long-term battery life if it is convenient for you. If I ever go back to a sealed battery that is most certainly what I will do whenever I possibly can.

    For the Note 4? Fast charge often, full top-off charge overnight, and when I need to run it down to power-down, I do that and don't even feel guilty.

    $40 pair of Ankers (your brand preference may vary) is good for over a year. Small price to pay, for me, for the convenience of using my phone like I want to use it.
    05-30-2017 10:37 AM
  6. TechNut79's Avatar
    So my new Anker battery says I should unplug after hitting 100% and I've always left it plugged in overnight. Am I OK? Also, I don't plug it in at 40%, but I usually don't wait until as low as 10% either.
    05-30-2017 05:09 PM
  7. natehoy's Avatar
    So my new Anker battery says I should unplug after hitting 100% and I've always left it plugged in overnight. Am I OK? Also, I don't plug it in at 40%, but I usually don't wait until as low as 10% either.
    Yes, you are okay. It may lower battery longevity a bit, but - hey - a new Anker is only 20 bucks, right?

    Just think of it as paying a little more for convenience. You could probably get an extra month or two out of the battery if you become its servant and dutifully charge it only to 75-80% and then have it on a slow charger before it hits 40%.

    Or you could just go use your phone and change in whatever manner is most convenient to you, and then accept that you'll be dropping another $20 a month or two early for that convenience.

    Totally your call. Depends on your personal priorities.
    06-02-2017 06:32 AM
  8. TechNut79's Avatar
    The problem is that this phone's battery dies so quickly. I'm usually on only a few apps, but I can watch it drop before my eyes. Last night I put it down at 98% and woke up to 90% with no use.
    06-02-2017 10:41 AM
  9. B. Diddy's Avatar
    In that case, it would help to see some battery stats to get a better idea of what might be responsible. Charge up to 100%, then let it drain to 20-30% with normal usage, without charging in between. Then show us:

    1. The main Settings>Battery screen.2. The fullscreen battery graph screen (which shows Awake time and Cell Signal Strength).
    3. The Screen category (to see total Screen On time).
    4. The Cell Standby category, if present (to see Time Without Signal).

    You might have to install a 3rd party battery monitor, like GSam Battery Monitor, to get the Cell Signal Strength graph.
    06-03-2017 12:38 PM
  10. TechNut79's Avatar
    The Cell Signal Strength graph I won't/can't do because a 3rd party app is not getting downloaded. The rest I can do though.
    06-03-2017 10:18 PM
  11. B. Diddy's Avatar
    GSam can't be installed? That's pretty commonly used, and in my experience is reliable.
    06-04-2017 06:50 PM
  12. TechNut79's Avatar
    I didn't say can't, I said won't. I don't want it on my device.
    06-05-2017 06:56 AM
  13. B. Diddy's Avatar
    Oh I see. I think Samsung devices don't give you a native way of graphing the cell signal, so you could either find another app that reports the cell signal strength that you're ok with, or not know if poor signal might be the problem. just relying on the bars in the status bar might not be enough, since you can't watch it all the time.
    06-05-2017 01:07 PM
  14. TechNut79's Avatar
    I'm pretty sure cell signal is part of the problem. It usually ranges from -95 to -100+. So frustrating, but I don't really know what else can be done.
    06-05-2017 05:36 PM
  15. B. Diddy's Avatar
    If it's primarily at home where the signal is poor, you could check with your carrier to see if they offer a signal booster for free (or for cheap). Or you could make a habit of toggling mobile data off overnight.
    06-05-2017 07:13 PM
  16. natehoy's Avatar
    I also turned on WiFi calling, so if the cell signal gets weak (which it does at my house a lot) the phone switches over to WiFi for voice, SMS, and voicemail notifications. That seems to have helped quite a lot with battery life for me.

    Also, the Note 4 battery meter does have a decent way of monitoring cell signal, albeit not terribly precisely - and it's not terribly obvious to find it. Simply go to "Settings" / "Battery" and when the summary graph comes up, tap on it to go to the detailed graph.

    You'll get another view of the graph with stats like "Mobile Network signal" (green = good, yellow = meh, orange = bad, red = nope), Location on, WiFi on, Awake, Screen on, and Charging.

    The nice part about that screen is that you can see the signal stats and kinda sorta associate weak signal, screen on, location on, or WiFi on with the current speed of discharge.

    There's no way to zoom in or see -dBm for signal at any given time, but it gives a pretty decently solid idea of what is going on for my purposes - no extra apps required.
    B. Diddy likes this.
    06-06-2017 02:10 PM
  17. natehoy's Avatar
    I'm pretty sure cell signal is part of the problem. It usually ranges from -95 to -100+. So frustrating, but I don't really know what else can be done.
    Realized I forgot to tag you on the previous post so you would be notified of the reply. Sorry.
    06-06-2017 02:13 PM
  18. B. Diddy's Avatar
    @natehoy, I thought that more recent Samsung phones got rid of the cell signal strength graph or bar, so it's good to know the Note 4 has it. What version of Android are you running?
    06-06-2017 02:29 PM
  19. natehoy's Avatar
    @natehoy, I thought that more recent Samsung phones got rid of the cell signal strength graph or bar, so it's good to know the Note 4 has it. What version of Android are you running?
    6.0.1.

    Horrible screen shot since there's no history on it, but...
    Attached Thumbnails What is proper battery maintenance?-screenshot_2017-06-06-15-34-53.jpg  
    B. Diddy likes this.
    06-06-2017 02:35 PM
  20. B. Diddy's Avatar
    Thanks! I'll have to check my wife's Note5 to see if that's when they got rid of those bars ...
    06-06-2017 03:14 PM
  21. natehoy's Avatar
    Thanks! I'll have to check my wife's Note5 to see if that's when they got rid of those bars ...
    I seem to recall that the bars used to be the "default" chart and you had to tap on something to go to the one that lists the apps. But it's been a while, and I could be wrong.

    It is extremely non-intuitive to tap on the chart to see the chart again with different details under it. I only accidentally happened on it a while back. Before that I was really upset at losing the "environmental statistics"-based battery chart. Cell signal in particular has such an effect on battery life, I miss people posting that version in their battery stats.

    "Well, sure you get all day battery - your cell signal stays green all day!"


    LOL
    B. Diddy likes this.
    06-06-2017 03:44 PM

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