Lenovo ThinkPad Tablet 2, User Manual

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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 dc-in connector on
the tablet.
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
(Display is on) Tablet off or in screen lock mode
(Display is off)
ThinkPad Tablet 2 Dock (fastest
charging method) Approved Approved
ThinkPad Tablet AC Adapter Approved, but the battery will charge
slowly Approved
A USB connection between the dc-in
connector on the tablet and a USB
connector of a personal computer or
other device that complies with the
USB 2.0 standards (slowest charging
method) This charging method will
compensate the power consumption.
The battery will discharge more slowly
than usual. Approved, but the battery will charge
slowly
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