How to Save iPhone 4 Battery Life

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and find out for yourself.

In this video, I explain how to save battery life on an iPhone 4, this also applies to people with iPads, iPod Touches, and older iPhones.

The iPhone features an internal rechargeable battery. Like an iPod but unlike most other mobile phones, the battery is not user-replaceable. The iPhone can be charged when connected to a computer for syncing across the included USB to dock connector cable, similar to charging an iPod. Alternatively, a USB to AC adapter (or "wall charger," also included) can be connected to the cable to charge directly from an AC outlet. A number of third party accessories (stereos, car chargers, even solar chargers) are also available. Apple runs tests on preproduction units to determine battery life. Apple's website says that the battery life "is designed to retain up to 80% of its original capacity after 400 full charge and discharge cycles", which is comparable to iPod batteries. The original iPhone's battery was stated to be capable of providing up to seven hours of video, six hours of web browsing, eight hours of talk time, 24 hours of music or up to 250 hours on standby. The iPhone 3G's battery is stated to be capable of providing up to seven hours of video, six hours of web browsing on Wi-Fi or five on 3G, ten hours of 2G talk time, or five on 3G, 24 hours of music, or 300 hours of standby. Apple claims that the 3GS can last for up to ten hours of video, nine hours of web browsing on Wi-Fi or five on 3G, twelve hours of 2G talk time, or five on 3G, 30 hours of music, or 300 hours of standby. The battery life of the iPhone has been criticized by several technology journalists as insufficient and less than Apple's claims. This is also reflected by a J. D. Power and Associates customer satisfaction survey, which gave the "battery aspects" of the iPhone 3G its lowest rating of 2 out of 5 stars. If the battery malfunctions or dies prematurely, the phone can be returned to Apple and replaced for free while still under warranty. The warranty lasts one year from purchase and can be extended to two years with AppleCare. Though the battery replacement service and its pricing was not made known to buyers until the day the product was launched, it is similar to how Apple (and third parties) replace batteries for iPods. The Foundation for Taxpayer and Consumer Rights, a consumer advocate group, has sent a complaint to Apple and AT&T over the fee that consumers have to pay to have the battery replaced. Since July 2007 third party battery replacement kits have been available at a much lower price than Apple's own battery replacement program. These kits often include a small screwdriver and an instruction leaflet, but as with many newer iPod models the battery in the original iPhone has been soldered in. Therefore a soldering iron is required to install the new battery. The iPhone 3G uses a different battery fitted with a connector that is easier to replace, although replacement by any besides Apple still voids the warranty.

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• How to improve battery life
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[sun5hine]

funny thing is dude does video about saving battery with 13% battery left only

[BlazeSliverwood]

why is he a kid .. when i was a kid i had a toy phone

[Pr4nked]

@Daedricraft cool!

[SwervinSpliffs27]

80% after 400 charges? See this makes no sense to me. Apple is well aware of 2 year contracts. 2 years is like 730 charges, if not more. Why not upgrade the battery in some way?

[JohnnyKid2002]

How do you save battery with wifi? 

[IslanderGalL1]

also if you press the home button twice, apps come up in a horizontal row and just simply press the little red 'x' in the corner of them to stop running them in the backround. you aren't deleting the apps, your just closing them so that their not running...

[Rosiee3334]

you sound really fit :L

[jackmc49]

@zacharysturgill disables wifi

[Danmark212]

battle bears??

[TheMrstopmotion88]

@zacharysturgill So you can use it on planes.

[MacsCanfly]

iPhone goes like "iPhone" not "Iphone"