A small, but very 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.
This is a coin cell holder for the common CR2032 type battery. The holder has a neat pop-in, pop-out feature that makes changing the battery easy.
Need a tidy DC-to-DC converter? This SparkFun breakout board offers 6 amperes of conversion, taking any DC voltage between 4.5-14VDC, and turning it to a selectable voltage between 0.59 and 5.5VDC.
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!
12VDC, 2 Amp, power supply with center positive polarity for general project use.