Storing iPhone 3G for long period of time

[SDAVE]

Should I keep 50% charge in the battery and turn it off? Or should I fully drain the battery and keep it safe?

I just have it as a backup phone and its well kept.

Thanks!

 

[Intell]

Don't fully drain the battery. Fully draining a lithium battery is very bad for the battery. My advise, turn it off when it's at 75% charge and put it away. If you can, charge it back up at least every three months.

 

[BiigBiscuit]

Wirelessly posted (Mozilla/5.0 (iPhone; CPU iPhone OS 5_0_1 like Mac OS X) AppleWebKit/534.46 (KHTML, like Gecko) Version/5.1 Mobile/9A406 Safari/7534.48.3)

I'd eave the battery at 40% or 50%. I think it should be fine. Check the Battery FAQ thread (I think that's what it was called). It has a chart and it says to keep it at 40% instead of fully charged.

 

[SDAVE]

Thanks guys!

 

[lordofthereef]

Why leave the battery at 50% or 75%? Why not full? (serious question...)

 

[mrsir2009]

I'd just fully charge it, then take it off the charger and turn it off.

 

[SporkLover]

Why leave the battery at 50% or 75%? Why not full? (serious question...)

From What I've read, Lithium Ion batteries "degrade" at a quicker rate at the extreme ends of it's charging capacity (Empty or Full).

If you want the battery to have a "long" life, it's best to store it near the 40-50%

http://batteryuniversity.com/learn/article/how_to_store_batteries

 

[Phillyphil0302]

From What I've read, Lithium Ion batteries "degrade" at a quicker rate at the extreme ends of it's charging capacity (Empty or Full).

If you want the battery to have a "long" life, it's best to store it near the 40-50%

http://batteryuniversity.com/learn/article/how_to_store_batteries

So are you saying I shouldn't fully discharge my 4s' battery till it turns off at least once a month? I've read somewhere on Apple's support page that you should fully discharge, then fully charge at least once a month...

now I'm confused

 

[maliu]

That is correct for calibration. The 50% is when you plan on putting it away and not using it.

 

[chambone]

If it were a phone that you could take the battery out of, it would be simply a matter of removing the battery at 50-60% charge and be done with it. But since it isn't, the battery will probably be drained after a while. Like someone already suggests, charge it every couple of months. You simply can't store an iPhone for years and forget about it.

 

[SporkLover]

So are you saying I shouldn't fully discharge my 4s' battery till it turns off at least once a month? I've read somewhere on Apple's support page that you should fully discharge, then fully charge at least once a month...

now I'm confused

Those directions are for storing a lithium Ion battery. Usage is different.