Are you training your new battery?

I charge my battery one Dailey at the end of the day on a slow wireless charger.
In the last month performance has improved.
Downside it's the explosive old note 7 battery
 
Thanks Rushmore, was hoping the battery expert would chime in.

So the techs that advise not to let it go below 40% are saying that based only on the longevity of and repeated heat produced with a longer charge? That's been my understanding, but if that is wrong please correct me. I know that is not what some techs advise, and you may not agree, but I was just surprised since 40 is relatively conservative. I figured it is based on the heat theory.

From my reading on Battery University, and people that have done fairly extensive testing on Li-ion/Lipo batteries on their own in the RC hobbies, the reason for 40% isn't much about heat. They can handle up to about 150°F, and phones rarely go above 120°F.

These batteries like being in the middle of their charge levels. If you drain too low or keep them too high, they breakdown quicker due to accelerated chemical reactions. 20% is getting into the red zone, so most people go conservative with phones and advocate charging at 40%. 30% for removable batteries. Conversely, don't leave your phone plugged in at 100% all the time either. That too will also kill a battery off in short order (about 6 months in my personal experience... ).

Going back to the OP, draining to zero once in a great while won't do a lot of harm as long as you charge it soon. The circuitry does have a calibration function, which is essentially reset when it's drained to 0%. This is sometimes recommended as a last ditch check if you suspect your battery is going bad, but I've yet to see someone do this and actually solve a calibration related issue. The battery in question was just done for.
 
From my reading on Battery University, and people that have done fairly extensive testing on Li-ion/Lipo batteries on their own in the RC hobbies, the reason for 40% isn't much about heat. They can handle up to about 150°F, and phones rarely go above 120°F.

These batteries like being in the middle of their charge levels. If you drain too low or keep them too high, they breakdown quicker due to accelerated chemical reactions. 20% is getting into the red zone, so most people go conservative with phones and advocate charging at 40%. 30% for removable batteries. Conversely, don't leave your phone plugged in at 100% all the time either. That too will also kill a battery off in short order (about 6 months in my personal experience... ).

Going back to the OP, draining to zero once in a great while won't do a lot of harm as long as you charge it soon. The circuitry does have a calibration function, which is essentially reset when it's drained to 0%. This is sometimes recommended as a last ditch check if you suspect your battery is going bad, but I've yet to see someone do this and actually solve a calibration related issue. The battery in question was just done for.

I do not understand their convention in doing that. You can charge when you want. I have been doing that since the Droid Incredible (battery life bad). Force of habit for me. If I can charge, I do it. The Note 7 though I am not as compelled. Battery life is the best of any device I have owned.

It's entirely just based on shorter, shallow chargers rather than doing deep discharges followed by a long charge. The entire practice is to keep the device between 40% and 80% as much as possible and that if you ever have to choose between going below 20% or charging to 100%, even if it means staying at 100% longer than necessary, that you should go up rather than down. Part of this practice takes into account the behaviors of fast charging technology, which charges faster at lower levels than it does at higher levels. So between 0% and X%, it's at A power, Between X% and Y% it's at B power and between Y% and 100% it's at C power, where A > B > C. So the most ideal situation would be to have as much C time as possible, but since that's unrealistic as it's usually barely using your device at all, they then switch and say try to keep your charging rates to the B area as much as possible by avoiding deep discharges.

Thanks for all the answers good info!
 
well ive never had issues with my s7 edge but even if i did the display leaked so i got a new one lol
 
It's entirely just based on shorter, shallow chargers rather than doing deep discharges followed by a long charge. The entire practice is to keep the device between 40% and 80% as much as possible and that if you ever have to choose between going below 20% or charging to 100%, even if it means staying at 100% longer than necessary, that you should go up rather than down. Part of this practice takes into account the behaviors of fast charging technology, which charges faster at lower levels than it does at higher levels. So between 0% and X%, it's at A power, Between X% and Y% it's at B power and between Y% and 100% it's at C power, where A > B > C. So the most ideal situation would be to have as much C time as possible, but since that's unrealistic as it's usually barely using your device at all, they then switch and say try to keep your charging rates to the B area as much as possible by avoiding deep discharges.

This is absolutely what I have started to employ. It may seem inconvenient but I'd like to have this phone for a couple of years. While the battery will last that long, the question is how good will it be during that time if I have taken it to extremes on a daily basis. I have disabled fast-charging in the battery settings to minimize the hear generated while charging. I have found that the difference in how fast it charges is not as much as I initially expected. I try to stick with this 40-80 rule but I am not panicking if it goes to 83% or 35%. I also try my best to use my phone while off the charger...once again, to minimize the heat generated.
 
If you mean in regards to a person moving on to another device, agreed. The battery though will choke before the hardware does. This is why OEs are moving to sealed batteries, since if you can replace it you will keep it longer. Still a LOT of Note 3 and 4s active.

OE's and carriers/retailers want consumers to turn devices every two years (as an aggregate). This drives the biggest margin products: accessorie$ and new warrantie$ :)

A key reason LG is sticking with replaceable batteries is they get that chunk/niche of customers wanting the feature. Free markets FTW!

Of course, with LG's power sucking displays (V20 included), the replaceable battery is handy to needed.

Yep. I had an extra battery for my V10. I loved the phone but the battery life was awful.
 

Actually, nope. Charging habits are crucial to maintaining longevity of the battery. As others have said, if you plan to upgrade in 2 yrs, it doesn't really matter. But if you want to keep it longer, these are the things to keep in mind.

1.
As some have said, avoid both fast charging and wireless charging. Both generate additional heat which quickly degrades the battery.

Don't leave the phone in a glove box or a hot car or in direct sunlight where the battery will get hot.

2.
Don't leave on overnight charging. A battery at constant full charge stresses the battery and again, degrades it quickly.

3.
Don't always charge to 100%. The last few percent charge puts a lot of stress on the battery and takes a lot of energy. Charge 90 to 95% instead.

4.
Charge very regularly. Top up frequently. Try not to let the battery fall below 50%. Even better, charge from 70%. The more frequent small charges, the better.

If you want your battery to maintain good charge for more than 2 years, This is how to do it.
 
4.
Charge very regularly. Top up frequently. Try not to let the battery fall below 50%. Even better, charge from 70%. The more frequent small charges, the better.

I may disagree a little here, as storage charges are typically less than 75%. Of you're spending more time above 75% than below, you could be doing damage. Maybe not as much as 100% all the time, but more than normal.

This also brings up another issue: wear on the port. The more you plug and unplug from the port, the quicker it'll wear out. I know this is an issue with micro-USB ports and cables because the plug "teeth" would loosen up. I know USB-C doesn't have those teeth, so the cable could be fine longer. Not sure if the ports are more robust, though. Taking this into account, it's a balancing act for those that charge often (either frequent shallow charging or full charging due to heavy use).
 
I may disagree a little here, as storage charges are typically less than 75%. Of you're spending more time above 75% than below, you could be doing damage. Maybe not as much as 100% all the time, but more than normal.

This also brings up another issue: wear on the port. The more you plug and unplug from the port, the quicker it'll wear out. I know this is an issue with micro-USB ports and cables because the plug "teeth" would loosen up. I know USB-C doesn't have those teeth, so the cable could be fine longer. Not sure if the ports are more robust, though. Taking this into account, it's a balancing act for those that charge often (either frequent shallow charging or full charging due to heavy use).

I can't speak for the wearing out of a charging port. I can't imagine this would be an issue, but surely a battery is likely to degrade before the port.

But virtually every website about lithium ion batteries says the same thing. That the longer time charged in, the more heat and stress on the battery. Therefore the shortest time on charge is best. 10 very small charges are far better than 2 long charges.

If you wanted your original battery to perform well in 5 yrs time, you would charge religiously from 80 to 95%. But of course that is not always practical.
 
This is the first I've read about charging causing heat and stress damage. Lithium batteries can handle a 1C charge no problem (basically 1mA charge per 1mAh capacity rating), which phones don't even approach when charging. They also don't heat up to levels that risk damage either. The phone will start throttling performance and the charge rate if the temps start climbing. This shouldn't be an issue unless in high ambient temp areas.
 
There was something I read just as the initial recall was getting going that Samsung changed something with the Note 7 battery vs the Galaxy S line. It had to do with having a longer life span as the phone ages. Not a metric for better screen on time/standby, but a higher anticipated life cycle in charge/discharge.
Of course, cannot find a link as anything search related including the Note 7 brings up all of the media drama.

Did anyone else see what I am mentioning?
 
Each time I see the title of this thread, I envision a Note 7 with a Marine drill instructor cover(hat) on yelling to another Note 7 on the ground: Mountain climb, recruit! Don't stop until there is a pool of sweat under you!!
 

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