2AAA rechargeable square battery pack with lid and switch, black

Product Name: 2 AAA Battery Holder with Cover and Switch, Black

Appearance and Structural Features:
Overall Design: This is a compact black rectangular battery holder designed specifically for two AAAbatteries. It's flat in shape, making it ideal for recessed installation or use as a battery compartment on the back of devices.

Material and Manufacturing: The casing is made of black engineering plastic (usually ABS) with a matte finish, providing good insulation and durability.

Functional Features (Key Points):
Flip-Top Design: The top of the battery compartment features a flip-top lid connected by a hinge. The lid is marked with "OPEN" and an arrow indicating the opening direction for easy identification. Once closed, the lid is secured with a snap, effectively preventing accidental battery dislodgement.

Integrated Switch: A miniature toggle switch is integrated at one end of the battery holder (on the bottom edge), allowing users to directly control the power on/off without having to open the lid or disconnect the connection.

Mounting Holes: There are round screw mounting holes at each of the four corners of the battery holder base. This four-corner mounting design is perfect for securely embedding the holder into a device panel or fixing it on a flat surface.

Contact System:
Negative Terminal: One end inside features a highly elastic nickel-plated coil spring to ensure tight and flexible battery contact.
Positive Terminal: The other end has a metal spring contact.

Connection Method: The bottom has two metal spring pins (SMT/through-hole compatible) for easy direct wiring or plugging into a circuit board socket.

Dimension Specifications:
Length: 70.6mm
Width: 35.8mm
Height: 14.5mm

Electrical Specifications: Internally, it's designed as a series circuit, and two AAA batteries can provide a DC output voltage of 3V. The bottom is clearly marked with "2XAAA" and "1.5V".