You can bring in your own batteries only if certain conditions are filfulled.
The handling of batteries differs depending on their capacity, so please refer to the following for details.
「Example of Dangerous Goods by Air Transportation」
*If there is no description of the capacity (watt-hour rating), please check it with this formula. Watt-hour rating (Wh) = Rated quantity (mAh) x Rated voltage (V) ÷ 1000 Depending on the product, there may be cases where the watt-hour rating and rated voltage are not indicated. Please contact the manufacturer.
*For details on the transportation of portable electronic devices containing lithium batteries subject to recall, please refer to the following information.
Restricted Baggage