Have you ever try to disassemble iphone? Dont do it. When your iphone have some problem, you cant get care service from Apple for your disassembled iphone.
Instead, use "Nude Battery".

"Nude Battery" show inside of iphone with electronic and physical animation. Design and animation is based on iphones real circuit and battery. And our imagination was added.

Features
- Look like disassembling iphone
- Circuit style design/animation
- Show battery level/state
- Sound effects
- Charging/unplugged animation
- Alarm when 100%
- Prevent sleep
- Fluid/bubble animation by gravity
- Show iOS version (4.0, 3.2, 3.1.3, etc.)
- Show Device Name (iPhone, iPhone 3G/3GS, iPhone 4, iPad, iPod Touch)

It displays the hours and minutes remaining of:
- Standby Time
- Phone Time 3G, 2G
- Internet 3G, WiFi
- Video Play Time
- Game Play Time
- Music Play Time

Usually Nude Battery Free iOS app used & searched for

battery status, light meter, magic fluids, battery life magic, free, battery magic, magic led, battery info, iphone battery life, battery level, battery led!, and other. So, download free Nude Battery Free .ipa to run this nice iOS application on iPhone and iPad.