•Do not disassemble or modify a battery. A battery contains safety and protection devices, which, if damaged, may cause the battery to generate heat, explode, or ignite.
•Immediately discontinue use of a battery if, while using, charging, or storing the battery, the battery emits an unusual smell, feels excessively hot (note that it is normal for a battery to feel warm), changes color or shape, or appears abnormal in any other way.
•In the event a battery leaks and the fluid gets into your eye, do not rub the eye. Rinse well with water and immediately seek medical care. If left untreated, the battery fluid could cause damage to the eye.
146 HP Photosmart M415 User’s Manual