What happens when the phone battery is connected to the positive and negative terminals?
If there is no protection on the PCBA component, directly to the power supply of batteries, then if a short circuit, the battery must explode.
Of course, this is to the regular battery manufacturers produced by the battery. Like dozens of dollars in the streets of the battery can not guarantee the battery.
First, the battery has a short circuit protection function. Shortening the battery positive and negative terminals will trigger the battery internal protection board (PCBA) on the components FUSS (temperature fuse) off, through a certain current or reach a certain temperature when the battery protection device and will start. What will not happen?