4x1.5V AA / AAA Battery Holder:

A 4x1.5V battery holder is a device designed to hold and connect four 1.5-volt batteries in series. This arrangement results in a combined voltage of 6 volts (4 batteries * 1.5 volts/battery = 6 volts). Here are some key points about a typical 4x1.5V battery holder:

1. Battery Type:
   • The holder is usually designed for standard AA batteries, which are 1.5 volts each. Therefore, four AA batteries in series provide a total voltage of 6 volts.
2. Configuration:
   • The batteries are typically arranged in a series configuration within the holder. In a series circuit, the positive terminal of one battery is connected to the negative terminal of the next, creating a cumulative voltage.
3. Construction:
   • The holder is generally made of plastic and includes slots or compartments to securely hold each battery. It also features metal contacts or springs to establish electrical connections with the battery terminals.
4. Connection Terminals:
   • The holder usually has two connection terminals, one for the positive (usually marked as "+") and one for the negative (usually marked as "-"). These terminals allow you to connect the holder to an external circuit or device.
5. Applications:
   • 4x1.5V battery holders are commonly used in various electronic devices and projects that require a 6-volt power source. This can include toys, small electronic gadgets, DIY projects, and more.
6. Wiring:
   • To use the holder, you would insert four AA batteries into their designated slots, making sure to align the positive and negative terminals correctly. Then, the holder can be connected to a device or circuit by attaching wires to the designated terminals.
7. Versatility:
   • Some holders may have additional features such as an on/off switch or built-in leads for easy connection.