Adafruit 9V Battery Case w/ Switch and Barrel Connector - RobotShop

Description 9V battery pack with on/off switch Use this to power your Arduino Ready to go out of the box Battery & screw not included The Adafruit 9V Battery Case w/ Switch and Barrel Connector is a 9V battery pack with on/off switch and a pre-attached 5.5mm/2.1mm barrel plug. Use this to battery-power your Arduino

Std & Rechargeable Batteries - RobotShop

5pack 9v Battery Clip with 2.1mm X 5.5mm Male DC Plug for Arduino by Corpco : Electronics

9V battery clip with 5.5mm/2.1mm plug : ID 80 : $2.95 : Adafruit Industries, Unique & fun DIY electronics and kits

Std & Rechargeable Batteries - RobotShop

This battery holder connects 2 AA batteries together in series for powering all kinds of projects. We spec'd these out because the box is fairly slim,

2 x AA Battery Holder with On/Off Switch & JST PH Connector

Power, Battery Holders Products Category on Adafruit Industries

Everything You Need To Know About The 9V Battery, batterie 9v

Make a portable power brick with plenty of juice! Use Alkaline AA's for a 12V 3000-4000mAh power supply, or rechargeable NiMH for 2000mAh 9.6V supply.

8 x AA battery holder with 5.5mm/2.1mm Plug and On/Off Switch