When traveling in Japan, there are many small things to keep in mind to ensure a smooth trip—including how to use chargers in public places.
Although it may seem trivial, Japan is well known for its strong culture of politeness, and even using a charger at cafés, stations, or public spaces comes with its own etiquette.
This guide will help you understand the proper way to use chargers in Japan, from where charging is allowed to the behavior you should maintain in order to respect local rules and culture.
Basic Information About Chargers in Japan
Like many other countries, Japan uses its own standard plug types. The country mainly uses Type A plugs, which have two flat parallel pins similar to those used in the United States.
However, in some places you may also find Type B plugs, which include an additional grounding pin underneath.
If you come from a country that uses different plug types, such as Type C or Type F commonly used in Indonesia, you will need a travel adapter so your devices can connect to Japanese outlets.
This small device allows your electronic devices to fit Japanese power sockets properly.
Besides plug shape, another important thing to consider is voltage. Voltage refers to the electrical power supplied to electronic devices. Japan uses approximately 100 volts.
Because of that, some devices may not function optimally.
Japan’s electrical frequency also differs depending on the region:
- 50 Hz in eastern areas such as Tokyo, Hokkaido, and Yokohama
- 60 Hz in western areas such as Osaka, Kyoto, and Hiroshima
This means that even if your plug fits, your device may still not work properly if it does not support the local voltage and frequency.
To stay safe, make sure your charger or adapter is labeled “100–240V.” This means the device can be safely used in Japan without issues.
However, if your device only supports 220–240V, you should use a voltage converter, which adjusts the electrical power to match your device’s requirements.
Do Not Use Public Facilities Carelessly
You cannot freely use electrical outlets in public places in Japan. Even though outlets may be available at airports, stations, cafés, or hotels, their use is often restricted.
For example, some cafés or restaurants provide outlets at tables, but customers are usually expected to ask staff for permission before using them.
Some places charge a fee for electricity usage, while others provide alternatives such as rental power banks. However, there are also many places that allow free use of outlets. If a place does not allow it, you should respect the rules and avoid using the outlet.
Using electricity without permission is not necessarily illegal, but in Japan it may be considered rude or even viewed as “electricity theft.”
It is best to charge your devices only in designated charging areas, which are commonly available in shopping malls, airports, or train stations. This allows you to charge safely without breaking any rules.
Alternatively, you can rent power banks through services such as ChargeSPOT, which can be found in convenience stores, cafés, train stations, and shopping centers across Japan. The system works similarly to power bank rental services in Indonesia, using the official mobile app.
Be Mindful of Time Limits
When charging your devices in Japan, avoid occupying outlets for too long, especially in public places such as cafés, airports, or coworking spaces.
Outlets in these places are generally intended for temporary use, not for charging devices to full battery while occupying a seat for several hours.
Some charging spots even apply time limits or usage fees. For example, certain stations may charge around ¥100 for 30 minutes of use.
These rules are designed to ensure that everyone has a fair chance to use the facilities.
Charging your devices in Japan may seem like a small matter, but it actually reflects how well you understand and respect local culture.
So, charge your devices wisely and enjoy your trip to Japan without worrying about breaking local etiquette.
