Chapter 4. Battery and ac power
This chapter provides instructions on how to charge the battery, how to extend the battery life between charges, and how to view the battery status.
Charging the battery
Your tablet is shipped with an ac adapter to charge your tablet from any standard ac power outlet.
Note: The battery is not fully charged when shipped.
To charge the battery, do the following:
1.Plug the ac adapter into a standard ac power outlet.
2.Connect one end of the USB cable to the ac adapter and the other end to the
Figure 4. Connecting the ac adapter with the tablet
3.Disconnect the ac adapter from your tablet when the battery power is full, or leave the ac adapter connected to operate from ac power.
Alternatively, you can use any of the following charging methods to safely recharge the internal battery of your tablet:
Charging method | Tablet on | Tablet off or in screen lock mode |
| (Display is on) | (Display is off) |
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ThinkPad Tablet 2 Dock (fastest | Approved | Approved |
charging method) |
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ThinkPad Tablet AC Adapter | Approved, but the battery will charge | Approved |
| slowly |
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ThinkPad Tablet DC Adapter | Approved, but the battery will charge | Approved |
| slowly |
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A USB connection between the | This charging method will | Approved, but the battery will charge |
connector on the tablet and a USB | compensate the power consumption. | slowly |
connector of a personal computer or | The battery will discharge more slowly |
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other device that complies with the | than usual. |
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USB 2.0 standards (slowest charging |
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method) |
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© Copyright Lenovo 2012 | 17 |
