Epson ActionNote - Manual (Page 24)

2. Connect the power cable to the AC adapter.
3. Connect the other end of the power cable to a grounded
(earthed) electrical outlet.
The indicator lights on the AC adapter tell you the adapter is
working properly:
Indicates the adapter is connected to an outlet.
Flashes when the battery is recharging; remains steady
when the battery is fully charged.
Note
For complete instructions on using the AC adapter, see
chapter 4.
Setting Up the Computer 1-9