Touch the application icon from the action bar and then touch Settings. The Android Settings screen is displayed.

2.Touch About tablet.

3.Touch Status Battery Condition. One of the following conditions might be displayed:

Good

Fair

Poor

If the condition is Fair or Poor, replace the internal battery.

Checking the ThinkPad Tablet AC Charger

When you use the ThinkPad Tablet AC Charger to charge the tablet but no power is charged, see the instructions in this topic to check the ThinkPad Tablet AC Charger.

To check the ThinkPad Tablet AC Charger, do the following:

1.Disconnect the micro-USB cable from the tablet.

2.Measure the output voltage across the connector marked B of the micro-USB cable. Refer to the following figure:

2 3 (5V)

Pin

Voltage (V dc)

 

 

1

Ground

 

 

2

0

 

 

3

+5

 

 

Note: The output voltage across pin 3 of the micro-B connector might be different from the one you are servicing.

3.If the voltage is not correct, replace the micro-USB cable.

4.If the voltage is acceptable, replace the system board.

Checking the internal battery status

To check the battery status of the tablet, do either of the following:

Approximate information about the battery status

Get the approximate status of the battery at any time by checking the battery status icon on the system bar in the lower-right corner of the screen. The shorter the blue bar is, the less the battery power remains.

Accurate information about the battery status

To get the accurate information about the battery status of the tablet, do the following:

1.Open the Android Settings screen.

To open the Android Settings screen, do either of the following:

From the main Home screen, touch the Android Settings icon on Lenovo Launch Zone. The Android Settings screen is displayed.

Touch the application icon from the action bar and then touch Settings. The Android Settings screen is displayed.

2.Touch About tablet on the Android Settings screen.

3.Touch Status to view the accurate percentage of the remaining battery power. You also can touch Battery use to check what applications are consuming battery power.

Chapter 3. General checkout 25

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Lenovo 183822U, 183825U manual Checking the ThinkPad Tablet AC Charger, Checking the internal battery status