2AA long rectangular battery pack with wire, straight type

Product Name: 2 AA (Size 5) Long Battery Holder with Wires/Series Connection

Appearance and Structural Features:
Overall Structure: This is a distinctive, slender black battery holder designed specifically for two AA (Size 5) batteries. Its most notable feature is its "long rectangular" layout, with the two battery compartments arranged in a straight line (in series) rather than side by side. This design significantly reduces the width, making it perfect for installation in tight spaces.

Material and Manufacturing: The casing is made of high-quality black engineering plastic (usually ABS), with a smooth surface that offers good insulation and mechanical strength. The bottom is clearly marked with "2xAA" to indicate its specifications.

Contact System:
Negative Terminal: One end inside features a highly elastic nickel-plated spiral spring that can effectively accommodate slight variations in battery size, ensuring secure installation and low contact resistance.
Positive Terminal: The other end has metal prongs or spring contacts (brass-colored contacts visible in the image).
Internal Connection: The two battery compartments are connected in series using internal metal strips or wires, ensuring a total output voltage of 3V.

Connection Method: Red and black wires are directly led out from the back (red wire for positive, black wire for negative). This wired design eliminates the need for soldering pins and allows for direct connection to circuit boards or other electronic components, making it ideal for DIY projects, repairs, replacements, or situations where soldering is inconvenient.

Dimension Specifications:
Length: 108mm
Width: 15mm
Height: 14mm

Electrical Characteristics: Internally designed as a series circuit, two AA batteries provide a DC output voltage of 3V.