Batteries are a staple for electronic projects. They can be used as the power source in many electronic circuits.
Battery snaps and holders are designed to fit a variety of battery sizes. Select the battery holder that best fits the batteries
In your project. "T" style battery snaps look like the letter "T" with the leads extending down. "I" style battery snaps have the leads coming out of one
end of the battery snap. They are referred to as "I" style snaps since they resemble the letter "I".