Here's another addition to our growing family of AA battery holders. Behold! A holder for 4 AA batteries! It's got a 5" long power cable with a 5.5/2.1mm DC jack at the end, an On/Off switch, and, oh yes, it's in classy Adafruit black. 4xAA battery packs are best used with development boards with 2.1mm DC jacks and are happy with ~4.8V (4 x NiMH) to 6V (4 x Alkaline). Batteries not included. Technical details * Cable length: 127mm * Product Dimensions: 250.0mm x 60.0mm x 19.0mm * Product Weight: 36.5g https://elecena.pl/product/22715900/4-x-aa-battery-holder-with-2-1mm-plug-and-on-off-switch 2023-03-07 https://elecena.pl/product/22715900/4-x-aa-battery-holder-with-2-1mm-plug-and-on-off-switch 2023-12-27 https://elecena.pl/product/22715900/4-x-aa-battery-holder-with-2-1mm-plug-and-on-off-switch 2024-09-19 https://elecena.pl/product/22715900/4-x-aa-battery-holder-with-2-1mm-plug-and-on-off-switch 2024-11-29 https://elecena.pl/product/22715900/4-x-aa-battery-holder-with-2-1mm-plug-and-on-off-switch 2024-11-30 https://elecena.pl/product/22715900/4-x-aa-battery-holder-with-2-1mm-plug-and-on-off-switch 2025-11-28 https://elecena.pl/product/22715900/4-x-aa-battery-holder-with-2-1mm-plug-and-on-off-switch 2025-11-29