Register FAQ / Rules Forum Spy Search Today's Posts Mark Forums Read
Go Back   MacRumors Forums > iPhone, iPod and iPad > iPhone

Reply
 
Thread Tools Search this Thread Display Modes
Old Sep 16, 2008, 03:23 AM   #1
kidwithshirt
macrumors member
 
Join Date: Sep 2008
How long IS the battery suppose to last?

Hey I just got an iphone 2g last week. Played around with 2.0.2 JB and never really tested out the battery since I was always messing around so it was plugged in.

Took iphone finally into the real world today. I used it a bit last night, maybe 1 hour of browsing etc, and maybe 4 other hours on iPod feature (I guess the counter in the phone counts ipod usage as general usage too?)

And today I probably played a couple minutes of spore and monkey ball to show my friends. Made 2 or 3 short calls, texted 4 messages

When I got home the battery is red, after one day of use.

Is this typical? Or is this battery is totally abnormal? According to the guy he had it for 6 month or so I think, so the battery shouldn't be totally screwed up yet.

Anyway my conception is that the battery should be slightly longer... you know, last a couple days with general usage from time to time.
kidwithshirt is offline   0 Reply With Quote
Old Sep 16, 2008, 07:45 AM   #2
neesh0
macrumors 6502a
 
neesh0's Avatar
 
Join Date: Sep 2008
Location: Toronto, Ontario
since you just got it you should let the phone drain its battery completely untill the phone turns off then charge it fully afterwards for a more accurate battery reading.
neesh0 is offline   0 Reply With Quote
Old Sep 16, 2008, 12:32 PM   #3
gt1948
macrumors regular
 
Join Date: Jun 2007
Quote:
Originally Posted by neesh0 View Post
since you just got it you should let the phone drain its battery completely untill the phone turns off then charge it fully afterwards for a more accurate battery reading.
not neccessary
gt1948 is offline   0 Reply With Quote
Old Sep 16, 2008, 12:48 PM   #4
rsk137
macrumors member
 
Join Date: Sep 2008
Power and battery
Built-in rechargeable lithium-ion battery3
Charging via USB to computer system or power adapter
Talk time:4
Up to 5 hours on 3G
Up to 10 hours on 2G
Standby time: Up to 300 hours5
Internet use:
Up to 5 hours on 3G6
Up to 6 hours on Wi-Fi7
Video playback: Up to 7 hours8
Audio playback: Up to 24 hours9

That's from apple's site. Real world seems to take more than a toll on the battery than the specs say, but in the end it's all about what you use it for and how long.

Click here for full list of iPhone's specs
rsk137 is offline   0 Reply With Quote
Old Sep 16, 2008, 12:55 PM   #5
ttech10
macrumors 6502
 
Join Date: May 2008
I recently got the iHome clock radio and I put my iPhone into that every night to listen to music and it charges... so I haven't had to worry about it dying on me.

Before though, while using it to text, talk, internet and iPod it would last me a good few days... that's with the 2G.

I haven't seen any huge difference with the 3G battery life. The only problem I would have is it randomly losing most of it's charge within 45 minutes or so.
__________________
iPhone 4 32GB
MacBook Pro 15"
ttech10 is offline   0 Reply With Quote
Old Sep 16, 2008, 12:59 PM   #6
Small White Car
macrumors G4
 
Small White Car's Avatar
 
Join Date: Aug 2006
Location: Washington DC
Yes, that's normal.

With normal 'moderate' use my phone generally gets to 17-18 hours (with 4-5 hours of "use" being logged).

Those numbers only happened when I was experimenting, though, and not charging on purpose. Since then I:

* Always plug it in while in my car.
* Always plug it in while I'm in bed.

Just doing that keeps me good.
Small White Car is offline   0 Reply With Quote
Old Sep 16, 2008, 01:04 PM   #7
Anuba
macrumors 68040
 
Anuba's Avatar
 
Join Date: Feb 2005
Quote:
Originally Posted by Small White Car View Post
Yes, that's normal.

With normal 'moderate' use my phone generally gets to 17-18 hours (with 4-5 hours of "use" being logged).

Those numbers only happened when I was experimenting, though, and not charging on purpose. Since then I:

* Always plug it in while in my car.
* Always plug it in while I'm in bed.

Just doing that keeps me good.
Different schools of thought here...

Some say that you should keep the charge on a Li-Ion battery as high as possible at all times. Just keep recharging and recharging and the battery will live longer.

Others say that you will kill the battery quicker if you keep putting the device on recharge more frequently than necessary. The reason for that is that every time you plug it in, you initiate a new recharge cycle, and the batteries only have a few thousand recharge cycles in them. In other words it's possible to run down a battery you've barely used, for example in a laptop, if you keep plugging and unplugging the charger.
Anuba is offline   0 Reply With Quote
Old Sep 16, 2008, 01:14 PM   #8
cellocello
macrumors 68000
 
cellocello's Avatar
 
Join Date: Jul 2008
Location: Toronto, ON
Quote:
Originally Posted by Anuba View Post
Different schools of thought here...

Some say that you should keep the charge on a Li-Ion battery as high as possible at all times. Just keep recharging and recharging and the battery will live longer.

Others say that you will kill the battery quicker if you keep putting the device on recharge more frequently than necessary. The reason for that is that every time you plug it in, you initiate a new recharge cycle, and the batteries only have a few thousand recharge cycles in them. In other words it's possible to run down a battery you've barely used, for example in a laptop, if you keep plugging and unplugging the charger.
I've read that Li-Ion batteries are 'happiest' keeping between 20 and 80% of their charge. I've also read that charging is 'hard' on Li-Ion batteries, and one should avoid just charging it all the time willy nilly (like, say, "topping it off" before leaving in the morning after charging it all night).
__________________
32GB new iPad (Black)
32GB iPhone 5 (Black)
Aluminum MacBook
Apple TV
cellocello is offline   0 Reply With Quote
Old Sep 16, 2008, 01:27 PM   #9
jbt2008
macrumors newbie
 
Join Date: May 2008
I too just got a 1st gen iphone and have noticed the battery isn't great. One thing I did notice though was switching off the data fetching to manual has really helped. I let mine go for about a day and a half of mixed use and the battery is needing a charge, not too bad in my opinion. I too have been letting it drain down then do a full recharge at night.
jbt2008 is offline   0 Reply With Quote

Reply
MacRumors Forums > iPhone, iPod and iPad > iPhone

Thread Tools Search this Thread
Search this Thread:

Advanced Search
Display Modes

Similar Threads
thread Thread Starter Forum Replies Last Post
MBA: How long does your battery last? Felasco MacBook Air 16 Mar 10, 2014 05:26 PM
How long did your 4S battery last? shotta287 iPhone 12 Aug 1, 2013 08:43 AM
how long does it take to replace a battery? ghanwani MacBook Pro 4 Jun 3, 2013 10:55 PM
How long does your iPhone battery last? SunnyRenegade33 iPhone 27 Jan 20, 2013 09:10 AM
How long did your battery last? el-John-o MacBook Pro 3 Dec 22, 2012 09:23 PM

Forum Jump

All times are GMT -5. The time now is 07:04 PM.

Mac Rumors | Mac | iPhone | iPhone Game Reviews | iPhone Apps

Mobile Version | Fixed | Fluid | Fluid HD
Copyright 2002-2013, MacRumors.com, LLC