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i4 - Average overnight battery loss?

L

lshirase

macrumors regular
Original poster
Jan 7, 2008
235
3
Hey everyone,

Just checking in to see what numbers other people are getting here...

Usage: 39 minutes
Standby: 7 hours 36 minutes

email fetches hourly (2 email accounts)

100% -----> 96%


is a 4% loss per night normal? Im assuming that my hourly email check is the main cause here.
 
Of course its normal!

"Im assuming that my hourly email check is the main cause here."

so you are saying if you didn't check your email once an hour it wouldn't go down at all.

Have you ever owned a mobile phone before? your Battery would decrease even if your phone was off.

Good god - iP4 Batter OCD - turn the % indicator off!
 
lshirase said:
is a 4% loss per night normal? Im assuming that my hourly email check is the main cause here.
Click to expand...

That would be over 2 days of stand-by time. I'd say that's pretty good!

That being said, I don't understand why you wouldn't charge your phone at night. My battery is usually pretty low at the end of the day. My sleep-time is the perfect time for the phone to charge.
 
flash3d said:
Of course its normal!

"Im assuming that my hourly email check is the main cause here."

so you are saying if you didn't check your email once an hour it wouldn't go down at all.

Have you ever owned a mobile phone before? your Battery would decrease even if your phone was off.

Good god - iP4 Batter OCD - turn the % indicator off!
Click to expand...

I'm saying that if my email didn't automatically push every hour i would lose maybe 1% at the most. I don't have a problem with it, i just wanted to compare numbers. Take it easy, champ.
 
Small White Car said:
That would be over 2 days of stand-by time. I'd say that's pretty good!

That being said, I don't understand why you wouldn't charge your phone at night. My battery is usually pretty low at the end of the day. My sleep-time is the perfect time for the phone to charge.
Click to expand...

Every Apple rep I spoke to said not to leave the phone charging over night. Said it will decrease the life of the battery. I'm not sure how true this is, but just letting you know so please dont jump on my comment.
 
I close everything out and I lose about 1 - 2%. I thought that was great.

Only charge the phone every other night.
 
Jnardis said:
Every Apple rep I spoke to said not to leave the phone charging over night. Said it will decrease the life of the battery. I'm not sure how true this is, but just letting you know so please dont jump on my comment.
Click to expand...

There is nothing wrong with charging a battery overnight. If apple really thought that you shouldn't, you would find it on there battery support documents.
 
Jnardis said:
Every Apple rep I spoke to said not to leave the phone charging over night. Said it will decrease the life of the battery. I'm not sure how true this is, but just letting you know so please dont jump on my comment.
Click to expand...

I've always heard that it stops charging when it's full. If that's the case then there's no reason to not charge overnight.

I can't find proof of that online right now, but I also can't find proof of what you were told. The biggest thing in my favor is that this page doesn't say anything about not charging it over night. If those people were right I'd have to assume it'd be mentioned on Apple's own site.

Since they don't mention it then I have to think that those employees didn't know what they were talking about.
 
I agree with you guys. Everyone I asked always said not to charge over night and not to use a car charger. Who the hell knows. I charge over night if I need to...
 
4% or so sounds about normal. after I jailbroke, my battery would drop as much as 13-17%. Thankfully there was an update to ultrasn0w and it's back to normal. last night my battery dropped only 2%.
 
dagored said:
I close everything out and I lose about 1 - 2%. I thought that was great.

Only charge the phone every other night.
Click to expand...

How do you accomplish this?

That was my routine with my iPhone 2g (with normal daily use I could make it to midnight with about 60%ish percent)

Now with my i4 it's usually around 30% by midnight, and I dont really think I'm usuing my phone more then my previous one.
 
If they didn't want you to charge overnight - why are there so many alarm clocks with docking stations???

I happen to own one - and my iPhone goes into every night.
 
It also has a lot to do with your signal quality.

If you are in a poor coverage area, your phone will use more battery then one using identical settings in an area with excellent coverage.
 
Pracht said:
How do you accomplish this?

That was my routine with my iPhone 2g (with normal daily use I could make it to midnight with about 60%ish percent)

Now with my i4 it's usually around 30% by midnight, and I dont really think I'm usuing my phone more then my previous one.
Click to expand...

Don't know, my first iphone. My wife's is the same. Maybe we got lucky. Not one problem with either phone and boy is she racking up the minutes.
 
Jnardis said:
Every Apple rep I spoke to said not to leave the phone charging over night. Said it will decrease the life of the battery. I'm not sure how true this is, but just letting you know so please dont jump on my comment.
Click to expand...

First, they are wrong. The phone knows when the battery is full and stops charging.

Apple says the battery is good for 400 full "charge cycles" before it begins to degrade... that's full discharge and recharge. Considering I put it back on the charger with about 40-50% charge left at night, I get about two days per "charge cycle," by Apple's definition. That's 800 days, or 2.2 years before the battery starts to drop off at all (and even then, its not an overnight drop, just a slow decay in performance) I upgrade every two years, so what do I care if the battery is trashed for the next person that buys the phone?
 
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