4xAA Battery Pack Holder Case Box to DC Barrel Jack Connector Compatible with Arduino(Pack of 2)
This is a simple 4 cell AA battery holder. The 5 inch cable is terminated with
a standard 5.5x2.1mm, center positive barrel jack connector. The connector
compatible with Arduino (among a number of other products) allowing you to
easily make your project battery powered. Note: The average voltage regulator
has about 1V of dropout (but can vary greatly). This pack, with normal
alkaline batteries, will output ~5.5V causing a normal 5V board to run at
around 4 to 4.5V. This depends a lot of what board and processor you are using
with the battery pack.
 
Product Features
  

         
The 5 inch cable is terminated with a standard 5.5x2.1mm, center positive barrel jack connector
         
The connector compatible with Arduino (among a number of other products) allowing you to easily make your project battery powered