iPhone: 3G, Is It Really Necessary?

iphone-3g-edge-speed-comparison3G Sucks The Life Out Of Your Battery

This article appears as a part of my iPhone Battery Saving Tips & Tricks series.

 

Battery life or lightening quick Internet on your iPhone?  There’s always a trade off.

 

I would suggest that it’s quite a big trade off IF you’re doing some serious browsing, downloading or uploading but if you’re doing everyday stuff like flipping through your RSS feeds, reading mail, checking the weather and so forth it might not be such a big sacrifice if it means that you’re battery will last longer.

 

iPhone Enable 3G Toggle SwitchThere are a few notable points, good & bad, about 3G.  The most obvious low point is that 3G zaps your battery so badly that Apple are even keen to point this out not only in their documentation but also on the iPhone Network Settings interface itself (as shown to the left).

 

To give this much screen real estate to something negative must surely be a legal thing.

 

Tests have shown that you’ll get at least one hour extra battery life out of your iPhone 3GS when using Edge instead of 3G and that’s if you’re using it constantly.

 

So the suggestion is, leave 3G off unless you absolutely need it.  Try it for a while.   Keep reading for instructions on how to do it.

 

This has been carried out and tested on an iPhone 3GS running iOS4.

Toggling 3G On & Off

  1. Tap Settings
  2. Tap General
  3. Tap Network
  4. Toggle the Enable 3G switch to OFF
  5. Press the Home key to return to the springboard.

 

iPhone: Configure Auto-Lock & Suspend For Maximum Battery Life

iPhone Auto-LockiPhone Auto-Lock:

This article appears as a part of my iPhone Battery Saving Tips & Tricks series.


Auto-Lock on iPhone sounds quite self-explanatory; it locks the phone automatically after a defined period of time.

Well it does and it doesn’t.

iPhone’s Auto-Lock applies only in certain circumstances and when using certain apps.

For example, third party apps can and are developed to over-ride the Auto-Lock in order for the screen to remain active.  The same goes for many mapping and navigation apps as well as any other app where the developer has decided to override the Auto-Lock.

This is fine and would be expected in many cases but what does it mean for battery life.  Well leaving the screen active for long periods really hacks away at your battery life so here’s what I believe to be the optimum configuration for a balance between usability, security and battery life on iPhone.

This has been carried out and tested on an iPhone 3GS running iOS4.

Configuring iPhone Auto-Lock & Using Manual Lock/Suspend

Let’s think about this scenario for a moment – if you use your iPhone on average 30 times a day and you don’t manually lock the iPhone after each time and are therefore relying on the Auto-Lock then 30 times per day your iPhone is sitting there on the desk or in your pocket or on your car seat or wherever just shining it’s nice bright screen out into the wilderness.

Now let’s say you lose between 0.5% and 1% of battery life for every time that happens.  That’s 20% to 30% battery life you’re losing just by being a bit lazy!  Get into the habit of manually locking!

So here’s my suggested configuration:

  • Manually lock/suspend your iPhone immediately after you’ve finished using it.
  • Set your Auto-Lock to the minimum time (1 minute) for times when you forget to manually lock.
  • For security and usability, set your Passcode Lock to Require Passcode after about 15 minutes so it doesn’t get really annoying having to enter your passcode every time you unlock the phone

Step-by-step

  1. Tap Settings
  2. Tap General iPhone Disable Bluetooth to save battery life
  3. Tap Auto-Lock
    iPhone Settings > General > Auto-Lock
  4. Tap 1 Minute and then tap General to return to the General Settings menu
    iPhone Auto-Lock Settings
  5. Now tap Passcode Lock and enter your current Passcode when requested
    iPhone Passcode Lock
  6. Now ensure Passcode Lock is set to On then tap Require Passcode
    iPhone Passcode Lock Require Passcode
  7. Tap 15 minutes (or whatever you prefer)
    iPhone Passcode Lock Require Passcode
  8. Press the Home key to return to the springboard.

 

HOWTO: Disable iPhone Bluetooth To Save Battery Life

Disable iPhone BlutoothIntroduction:

Bluetooth has been around for a long time now and is most commonly used for wireless headsets on mobile phones which is what it’s used for primarily on iPhone too.

 

It does however have around 25 more uses on phones but these aren’t enabled or indeed possible on iPhone’s Bluetooth.

 

With this in mind, do you really need Bluetooth enabled?

 

Bluetooth is notorious for zapping your battery and whilst not currently a security concern on the iPhone (due to the lack of data functionality) it may in the future be possible for people to access your iPhone if left enabled at all times.

 

This appears as a part of my iPhone Battery Saving Tips & Tricks article.

 

This has been carried out and tested on an iPhone 3GS running iOS4.

Instructions

Disable Bluetooth on iPhone OS 3 & iOS4

 

  1. Tap Settings
  2. Tap General

    iPhone Disable Bluetooth to save battery life

  3. Tap Bluetooth
    iPhone Disable Bluetooth to save battery life
  4. Switch off your iPhone’s Bluetooth by toggling the switch to OFF.
    iPhone Disable Bluetooth to save battery life
  5. Press the Home key to return to the springboard.

 

HOWTO: Increase Battery Life by Fetching iPhone Mail, Don’t Push!

iPhone Push Notifications Battery LifeDon’t ‘Push’ For Longer Battery Life

Push Mail was introduced in iPhone 3G and to some it is as indispensable as their right arm.

That’s all very helpful but what good is Push Mail when your battery life dies prematurely

This appears as a part of my iPhone Battery Saving Tips & Tricks article.

Push Mail in iPhone OS 3 and still in iOS4 continues to drain the battery at a far greater rate than when it’s disabled or substituted for a little savvy, clever approach to mail handling on iPhone.

There are two types of Push Notifications on iPhone, one for apps and one for mail.

I’d recommend tweaking both for better battery life but only the mail one is covered here.

If you want to tweak your applications push notifications, have a look at this article, HOWTO: Disable iPhone Push Notifications

This has been carried out and tested on an iPhone 3GS running iOS4.

Fetch, Don’t Push When It Comes To iPhone Mail

  1. Tap Settings
  2. Tap Mail, Contacts, Calendars
  3. iPhone Mail disable push enable fetch for better battery life

  4. Tap Fetch New Data
  5. iPhone Mail disable push enable fetch for better battery life

  6. Switch off Push by toggling the switch to OFF.  Now set your Fetch interval as required.
  7. iPhone Mail disable push enable fetch for better battery life

  8. Press the Home key to return to the springboard.

HOWTO: Disable iPhone App Push Notifications for Longer Battery Life

iPhone Push Notifications Battery LifeLonger Battery or Lots of Red Circles With Numbers? Your Choice.

Push Notifications were introduced to iPhone 3G and continue to become more and more popular with developers as a way to make their apps more interactive but it comes at a price, battery life.

This appears as a part of my iPhone Battery Saving Tips & Tricks series.

Push Notifications in iPhone OS 3 and still in iOS4 continues to drain the battery at an alarming rate in some cases and more often than not are just not necessary.

There are two types of Push Notifications on iPhone, one for apps and one for mail.

I’d recommend tweaking  both for better battery life but only the apps one is covered here.

This has been carried out and tested on an iPhone 3GS running iOS4.

Instructions

Disabling Push Notifications (Applications)

  1. Tap Settings
  2. Tap Notifications
    iPhone iOS4 Settings Panel Notifications
  3. To turn off all Application’s Push Notifications, toggle the ON/OFF switch at the top
    iPhone iOS4 Notifications Panel Push Notifications
  4. To turn off a selection of your Application’s Push Notifications, enter each individual Application’s Notifications page and toggle Badges, Alerts and Sounds as required.
    iPhone iOS4 Notifications Push Facebook
  5. Press the Home key to return to the springboard.