Plenty of electronics are powered by 9V batteries. Have you ever wanted to use an adapter to power your favorite electronics? Maybe you want to replace your adapter with a 9V battery? These 9V battery accessories can help:
9v Battery Clip with male plug: lets you use 9V batteries to power your Arduino or lights. It has a 2.1mm x 5.5mm battery clip.
9v Battery Eliminator: lets you replace your 9V batteries with a wall adapter. It has an output of 500mA. It comes with a convenient 9V battery connector.
Have you found better accessories to get the most out of your 9V batteries? Please share them here.