Q. What are the battery clips symbol?

Answer

In a battery clip, the positive lead is the red wire and the negative lead is the black wire. In the battery symbol, the longer vertical line indicates the positive terminal, which is typically denoted by a plus sign (+). Connect the battery's negative connection to the component of the circuit denoted as negative (by the battery symbol, 0V, or GND). There will be a battery icon or words, such "+9V," on it. Take note of the polarity markings in the battery holder when assembling a 1.5V cell battery pack. If a user has trouble keeping the leads of the battery clip from getting too short, practice on some scrap wire first.