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Cowabunga

macrumors member
Original poster
Mar 17, 2011
39
0
Someone told me cold weather isn't good for cell phone battery. Unfortunately, my entire area lost power due to the snow storms this past weekend, and may not be back for some time. I can charge the phone at work, but when I'm home it's very cold and my cell phone, thus, gets cold. Am I doing any permanent damage? I left it in airplane mode over night and it went from 87% to 85% so I assume it's OK but I had left it by a window not thinking.
 
Someone told me cold weather isn't good for cell phone battery. Unfortunately, my entire area lost power due to the snow storms this past weekend, and may not be back for some time. I can charge the phone at work, but when I'm home it's very cold and my cell phone, thus, gets cold. Am I doing any permanent damage? I left it in airplane mode over night and it went from 87% to 85% so I assume it's OK but I had left it by a window not thinking.

I live in the Northeast and my phone's definitely gotten quite cold a number of times but I've never had any issues related to that that I know of.
 
From http://www.apple.com/iphone/specs.html

Environmental Requirements
  • Operating temperature: 32° to 95° F (0° to 35° C)
  • Nonoperating temperature: −4° to 113° F (−20° to 45° C)

Generally speaking, at lower temperatures the usable capacity of any battery is lower, but thats not a permanent reduction, just applies while the battery is cold. Unless you're storing your phone below -20C I don't think you are risking any permanent damage.
 
Someone told me cold weather isn't good for cell phone battery.

I don't think the battery is as much a concern as condensation. Cold environment may not be ideal for a battery's current state of charge but it won't really "hurt" anything, just discharge the battery faster. What you need to be worried most about is condensation in the electronics, which can happen if the air temperature is 32F or below. If the phone is on, the heat generated by the electronics will pull moisture out of the air.

I'm assuming you want to leave the phone on in case of emergency calls. If the air temp in your house is dropping below freezing then you could keep the phone on your person (in a pocket, etc.) to keep it warm - or wrap it in some cloth to keep it a little warmer.
 
Cold weather is actually good for your battery. Extremely cold weather is bad. Your battery might drain less in cold weather.
 
Lithium batteries will always drain faster in "Cold" weather, but as long as is about 50 - 90 degrees, you shouldn't have a problem
 
Someone told me cold weather isn't good for cell phone battery. Unfortunately, my entire area lost power due to the snow storms this past weekend, and may not be back for some time. I can charge the phone at work, but when I'm home it's very cold and my cell phone, thus, gets cold. Am I doing any permanent damage? I left it in airplane mode over night and it went from 87% to 85% so I assume it's OK but I had left it by a window not thinking.

I think you're better off just using the phone when you need it and worrying about the battery later.
 
Most places I know used to store battery in fridge to keep it reasonably fresh. It is at higher temperatures that batteries are not their best.

Most electronic equipment works best when kept cool. Thus the A/C in server rooms etc.

Extreme cold or heat is never very good. Also if you have it exposed to cold for a long time. Allow it to reach room temp before turning it on for a couple of hours to avoid condensation issues with the device.
(unless of course you are keeping it in sleep mode the whole time, then I don't think you have much to worry about)

WW
 
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Yeah my house is around 30 degrees right now because we haven't had power since we got 16 inches of snow on Saturday..my whole town is out and school was cancelled this week. My battery has definitely been going down faster.
 
It's correct as some pointed out. Cold is good, just not freezing cold. Hot is very bad. In fact, it was recommended to me that I store my extra laptop battery in the refrigerator when not in use. Over supply of batteries are also stored in the fridge to prolong longevity. Its leaving your iPhone or laptop in the car, in hot heat weather conditions, that will deteriorate your battery.
 
Someone told me cold weather isn't good for cell phone battery. Unfortunately, my entire area lost power due to the snow storms this past weekend, and may not be back for some time. I can charge the phone at work, but when I'm home it's very cold and my cell phone, thus, gets cold. Am I doing any permanent damage? I left it in airplane mode over night and it went from 87% to 85% so I assume it's OK but I had left it by a window not thinking.

Sorry bout the power outage. I'm south of Boston and we only had 3" of snow and few, if any, power outages. (Lost power for five days after Irene - so I know it's a giant pain in the ass.):(

About your battery - a suggestion: tuck it in your BVD's (or whatever you wear). That will keep it warm - and easily available.:)

And you can always set it on vibrate...:D :p
 
Thank you guys very much for the replies! I was concerned with long-term/permanent damage but you've eased my mind.

Shrink, glad to hear Boston didn't get hit too hard. I'm in Western Mass and it was pretty chaotic this weekend. They're saying 3-5 days before power in many places!!

On a 180 degree turn here, if I want the battery to drain faster so that I can do a full charge, is it bad to turn brightness up and play a movie, etc? The phone seems to get quiet hot so I turned the movie off and brightness down because I didnt want to do any harm. What's the best way to drain the battery safely?

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About how cold was it? Apple says not to put it below 32 degrees Fahrenheit

It got down to 18 outside last night but probably 40's in the house. Sounds like I should be ok!
 
Most places I know used to store battery in fridge to keep it reasonably fresh.

Hot is very bad. In fact, it was recommended to me that I store my extra laptop battery in the refrigerator when not in use.

There's not a battery manufacturer in the world that would recommend storing batteries in the refrigerator.

This is an old wives' tale. Please don't help it to continue. Refrigerating batteries at best has no benefit at all, and at worst encourages condensation as the refrigerated batteries warm up.
 
Cold temps do NOT drain you battery quicker!

Cold temps slow down the chemistry in the batteries and reduce their capacity to make electricity. Warm them back up and they make more power. If your battery is below 32 degrees it would only have a fraction of it's room temperature capacity.

I hate to tell anyone to keep their phone is their pocket, but I would seal it in a zip lock and put it in your front pants pocket against you leg. That would keep it warm enough to keep working.

That is all.:cool:
 
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