Canon BJC-55 User Manual page 21

Safety Precautions
Do not attempt to connect the battery to an external power source,
such as a home power outlet or a cigarette lighter receptacle in an
automobile.
Do not attempt to use the battery in any other computer or device.
If liquid from the battery comes into contact with your eye, wash it
in cold running water and contact a physician for medical treatment
immediately to prevent injury or impaired vision.
If the battery leaks, or emits smoke or noxious odors, move it
immediately to a cooler location.
Introduction 21