With the Olympus UC-90 Battery Charger you can charge the LI-90B and LI-92B Battery via USB connection.
In addition you can charge it via AC connection if you use the power cable and the F-2AC (or F-3AC) Adapter which is supplied with the camera. Charging time for LI-90 B is around 210 minutes.
Note: The charger's input voltage will automatically regulate between 100V-240V~50/60Hz. For overseas use, we recommend only a plug adapter for the country you will be visiting. Plug adapters are usually sold at stores that feature travel items such as luggage.