JEITA A stands for Japan Electronic Information Technology Association (Ver 1.0).
JEITA A measuring standard is based on the following conditions:

1. Set Screen Saver to None

Right-click on the Desktop -> Personalize -> Screen saver -> None

2. Set Volume control to Mute

Rignt-click the Volume icon on the taskbar -> Select Open volume Mixer -  Click Mute icon

 

3. Switch off the Wireless LAN switch 

4. Turn off the Windows automatic updates

Click Start -> Control Panel ->  Click Windows updates -> Click Change Settings -> Uncheck Never check for updates.

5. Do not change initial settings of McAfee Security Center

6. Close the Side Bar

Right-click the Windows Sidebar icon on the taskbar, and then select Exit.

7. Set the desktop background to VAIO Long Battery Life Wallpaper

Right-click on the desktop ->  Personalize -> Desktop Background and then select VAIO Long Battery Life Wall Paper

8. Close the Prepare your VAIO

9. Close the VAIO Smart Network from the taskbar

Right-click VAIO Smart Network icon on the taskbar, and then select Exit.

 

10. Click Start -> Select VAIO Control Center -> Power Management -> Power Options -> Uncheck Automatically enter Hibernate mode when battery is low.

 

Power Plan

1. Select VAIO Maximum Battery
Control Panel - Power Options, Select VAIO Maximum Battery

 

2. Go to Change plan settings -> Change advanced power settings -> Advanced settings tab

Sleep After - Never

Hibernate After - Never

Dim display after - 0 minute

Turn off display After - Never

Low battery notification - Off

 

JEITA Measuring Method a: 
Display Brightness

1. Go to Control Panel -> Power Option -> Change plan settings -> Change advanced power settings -> display -> Display brightness -> Change the brightness level to 10%.

 

Please refer to the steps below
1. Fully charge the battery of the notebook.
2. Play the video clip stored on the HDD Drive continuously.
Note:
Please refer to the following to obtain the test media file.
a. Visit http://it.jeita.or.jp/mobile/e/index.html
b. Click 3. MPEG measurement file and then click MPEG file for JEITA Battery Run Time Measurement Method approx. 30MB
 
c. Save the MPEG file onto the HDD Drive.
3. Calculate the running time after unplugging the AC adaptor until the notebook shuts down automatically.
For more information on JEITA A Battery Run Time Measurement Method for VAIO notebook, please visit the following website.
http://it.jeita.or.jp/mobile/e/index.html