3AA embedded battery box with lid and switch

Product Name: 3 AA (Size 5) Embedded Square Battery Holder (with Lid and Switch)

Appearance and Structural Features:
Overall Structure: This is a uniquely designed black (also available in white) square battery holder, specifically designed to hold three AA (Size 5) batteries. It features a side-by-side layout, giving it an almost square shape, making it perfect for embedded installation or use as a device back cover.

Material and Manufacturing: The outer shell is made of high-quality engineering plastic (usually ABS), with a matte finish that is durable and sturdy. The edges have wide mounting flanges, and each of the four corners has a countersunk screw hole, making it easy to securely fasten the holder to a device panel or casing.

Functional Design (Key Features):
Integrated Toggle Switch: A miniature toggle switch is integrated on one side edge of the battery holder, clearly labeled with "ON" and "OFF" positions. Users can directly control the power on and off from the battery holder itself, eliminating the need for an additional switch in the external circuit.

Flip-Top Protective Cover: The top of the battery compartment is equipped with a flip-top cover connected by hinges. The edge of the cover has a snap design that secures the batteries in place after closing, preventing them from falling out due to vibration and providing dust protection. The cover also has an arrow indicator showing the opening direction.

Mounting Holes: The screw holes at the four corners are perfectly designed to fit into the pre-cut slots in the device casing, ensuring that the surface of the battery holder is flush with the device surface.

Contact System:
Negative Terminal: An internally mounted high-elasticity nickel-plated coil spring ensures tight and flexible battery contact.
Positive Terminal: The other end features a metal spring contact.

Dimensions:
Length: 71.9mm
Width: 67.8mm
Height: 17.6mm

Electrical Specifications: Internally designed as a series circuit, three AA batteries can provide a DC output voltage of 4.5V.