A: Throw them in the trash. A 9 volt battery is a fire hazard because the positive and negative posts are on top, right next to one another. If this comes in contact with anything metal (aluminum ...

A 9-volt battery is a fire hazard because the positive and negative posts are on top, right next to one another, the experts say. If the ends come in contact with anything metal, such as steel ...

Two experts confirmed charging your phone with a nine-volt battery ... Osterman used a 9v battery and connected the negative side to a black insulated wire and the positive side to a red insulated ...

You can recycle any rechargeable or single-use batteries, including A, AA, AAA, AAAA, C cell, D cell, 4.5-volt and 9-volt. For safety, you should tape the positive and negative ends of 9-volt and ...