does keeping a battery cool while it is charging make it last longer

[magomago]

my question is basically the subject title.

I noticed that when I put a fan over my nexus 4 while it's charging it is much cooler...
will this help the battery life at all since i know heat is the number one enemy, or am I thinking too much

hahaha how do I get Google to put periods in my sentences

 

[GTRagnarok]

It'll probably make a very small difference over its lifetime. Not worth the effort.

 

[pm]

Yes, it will help, but it's probably not a concern if the battery isn't getting really hot. But in general, heat with lithium-based batteries causes them to break down sooner. Any effort to keep them cool will result in a longer lifespan... although the effect isn't huge and the data that I've seen is old. So, in summary, they will wear out no matter what you do, but keeping them cooler will result a longer usable life, but as GTRagnarok wrote, it might be enough to make it worth the trouble.

 

[OBLAMA2009]

i was just wondering this last week. i had two spare batteries for my gs3 and i left one in the tray of my car for a week of two and when i put it in my phone it went from 100% to turning off in 5 minutes. so i think the heat in the car might have ruined the battery

 

[soccerballtux]

slow-charge with USB on computer to mitigate this.
1. less power draw == cooler
2. slower charge is "more thorough" as more of the battery has more time to charge.

I get better battery life if I charge on coumputer at 500mA.

 

[pm]

i was just wondering this last week. i had two spare batteries for my gs3 and i left one in the tray of my car for a week of two and when i put it in my phone it went from 100% to turning off in 5 minutes. so i think the heat in the car might have ruined the battery

It seems a little extreme, but I guess it's possible. In the sun on a summer's day it could get above 60C/140F and if it was fully charged when you had it there, then you'd expect to lose half the battery capacity in 3 months. Your experience is much worse, but manufacturers charge to various voltages and higher voltages could result in something close to what you experienced. Or it could just be a shoddy battery and the heat hurt it worse than you would normally expect.

Look at this link:
http://batteryuniversity.com/learn/article/how_to_prolong_lithium_based_batteries

and scroll down to table 3.

And then this quote further down:

Let’s look at real-life situations and examine what stresses lithium-ion batteries encounter. Most packs last three to five years. Environmental conditions, and not cycling alone, are a key ingredient to longevity, and the worst situation is keeping a fully charged battery at elevated temperatures. This is the case when running a laptop off the power grid. Under these conditions, a battery will typically last for about two years, whether cycled or not. The pack does not die suddenly but will give lower runtimes with aging.
Even more stressful is leaving a battery in a hot car, especially if exposed to the sun. When not in use, store the battery in a cool place. For long-term storage, manufacturers recommend a 40 percent charge.

 

[magomago]

It seems a little extreme, but I guess it's possible. In the sun on a summer's day it could get above 60C/140F and if it was fully charged when you had it there, then you'd expect to lose half the battery capacity in 3 months. Your experience is much worse, but manufacturers charge to various voltages and higher voltages could result in something close to what you experienced. Or it could just be a shoddy battery and the heat hurt it worse than you would normally expect.

Look at this link:
http://batteryuniversity.com/learn/article/how_to_prolong_lithium_based_batteries

and scroll down to table 3.

And then this quote further down:

It sounds like there is an argument to be made, if it exists.

FWIW, the phone gets prettttty hot, but this is my first smart phone, so I'm not used to it.

I usually turn on an air filter at night, so placing the phone near the exit port is a simple task for me. I don't know if the supplied USB charge is the 500mA or a 2A version, but the phone is substancially cooler when a light breeze passes over it for easily the first minute that I hold it.

 

[OBLAMA2009]

It seems a little extreme, but I guess it's possible. In the sun on a summer's day it could get above 60C/140F and if it was fully charged when you had it there, then you'd expect to lose half the battery capacity in 3 months. Your experience is much worse, but manufacturers charge to various voltages and higher voltages could result in something close to what you experienced. Or it could just be a shoddy battery and the heat hurt it worse than you would normally expect.

Look at this link:
http://batteryuniversity.com/learn/article/how_to_prolong_lithium_based_batteries

and scroll down to table 3.

And then this quote further down:

i tried to "recondition" the battery by charging it overnight, but today it was still doing the same thing (lasting 5 minutes and then dying, despite being nearly new), so it looks permanently bunged. is there any other known way to bring a battery like that back?

 

[pm]

i tried to "recondition" the battery by charging it overnight, but today it was still doing the same thing (lasting 5 minutes and then dying, despite being nearly new), so it looks permanently bunged. is there any other known way to bring a battery like that back?

No. Not that I know of or have heard of. I fly RC electric helicopters and airplanes and I regularly destroy batteries. Once they lose capacity, there's no way that I've ever heard of to get that capacity back again.