Power Outlet

The power outlet is designed to supply power to mobile phones or other devices designed to operate on the vehicle's electrical system. Devices must draw less than 12 V, 15 A while the engine is running.
Use the power outlet only while the engine is running, and disconnect the accessory plug after use. Using the accessory plug for a long time with the engine off may discharge the battery.
Use only 12 V electrical accessories with a power rating not exceeding 15 A.
Close the cover when the outlet is not in use.
Some electronic devices may cause electronic interference when connected to the vehicle's power outlet. These devices may cause excessive noise in audio and malfunctions in other electronic systems or devices used in your vehicle.
Using electrical products that exceed the specified power limits may cause overheating of the socket and the power wiring, which may lead to damage to the electrical system. Always make sure the electrical plug is fully inserted into the socket. Incomplete connection may cause damage to the power wiring.
Electrical products with a built-in battery may cause current backflow, which may lead to malfunction of the electrical/electronic devices in your vehicle. Use only electrical products that include reverse current protection.
WARNING! Electric Shock
Do not insert your finger or foreign objects (pen, etc.) into the power outlet and do not touch it with wet hands. You may receive an electric shock.
Test yourself
A quick Kia Rio YB quiz: every answer comes with an explanation and a link to the manual page.