AA – Battery Holder with a DC plug fly lead

AA – Battery Holder with a DC plug fly lead

AA battery holder with or without a DC plug fly lead suited for general projects as well as for Arduino projects. The DC plug is a 2.1mm centre positive

Available in:

2 x AA with a DC plug fly lead

• Total Voltage with 2X 1.5V AA battery:3V
• Wire Length: Approx 150 mm with 3 mm wire tinned
• Dimension: Approx. 57mm x 31mm x 15mm
• Bare Wires  (no plug)

4 x AA (no plug)

• Total Voltage with 4X 1.5V AA battery: 6V
• Wire Length: Approx 150 mm with 3 mm wire tinned
• Dimension: Approx. 57mm x 31mm x 29mm
• Bare Wires  (no plug)

6 x AA with a DC plug fly lead

• 6X AA battery Slot Holder Case with wire leads for soldering / connecting
• Total Voltage with 6X 1.5V AA battery: 9V
• Lead Cable Length: 6 Inch
• Power Jack diameter 2.1 mm / 5.5 mm male
• Dimension: Approx. 57mm x 47mm x 29mm.(L*W*H)

HISTORY: 

In the late 1800s patents were issued for consumer products like flashlights; patent no. 617592 dated March 1898 is for an early metal flashlight that accepted D batteries.

Some early 1900s battery holders were often no more than a cardboard box with copper contacts. By the 1920s, battery holders used twin metal clips (like fuse holders) to hold the battery in place while making electrical contact. Patent no. 1439429 was granted in Dec., 1922 for an assembly with two spring arm clips, a small switch and a lamp assembly on the end of connected wires.

The introduction of polypropylene in the 1950s and miniature batteries by Eveready allowed for the use of small plastic battery holders. These are still common in toys, decorations, and lighted or blinking items. In 1957, electric wrist watches gained popularity with the public.

Battery holders developed in parallel with batteries over time; as battery package sizes shrunk so did the holders. In the 1980s, the first circuit board mounting lithium coin or button cell battery holders appeared in the form of patent no. 4487820 by the battery holder manufacturer MPD