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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 mates with the barrel jack on the 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. Please consult yer datasheet.
SparkFun Produkt
SparkFun Produkt
SparkFun Original
SparkFun Original
SparkFun Produkt
SparkFun Produkt
SparkFun Produkt
SparkFun Original
SparkFun Produkt
SparkFun Produkt