The BVR Breadboard regulator kit makes it easy to add regulated, switchable power to your breadboard by using practically any 2.1mm DC adapter!
This unit is great for wiring up 3 AA batteries in series.
A small, but mighty power supply. This board was designed to be as small and inconspicuous as possible.
2.1mm barrel power jack socket. For connecting barrels, I mean "power leads"!
Holder for single AAA size battery. 1.95" long x 0.50" x 0.50" high. Unbreakable black plastic. 6" wire leads.
It's a nice 5-AA battery holder, with 5" leads and a 2.1mm DC barrel plug.
Need to add more voltage to your regular 4AA battery pack? Parallax has come up with this ingenious plug in module that adds a 5th module to your AA quad-pack holder.
Looking for a portable USB device charger, like for an iPod, Zune, or similar portable electronic device? The MintyBoost is a fun kit that lets you recharge on the fly, from a pair of normal AA cells!