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.
These are very slim, extremely light weight batteries based on the new Polymer Lithium Ion chemistry.
This battery holder uses 3 AA cells to power your electronics, robotic or embedded project. You can do without, but MAN, when you need to hold 3AA cells, you'll need it!
This unit is great for wiring up 3 AA batteries in series.
Holder for single AAA size battery. 1.95" long x 0.50" x 0.50" high. Unbreakable black plastic. 6" wire leads.
12VDC, 2 Amp, power supply with center positive polarity for general project use.
This is a 9V battery pack with on/off switch and a 2.1mm barrel plug, you get both parts and will have to solder them together. Use this to battery-power your Arduino (or other electronic projects).
This is a really nice power supply. It's a switching DC supply so its small and light and efficient. It is thin so it fits in power strips without blocking other outlets.
It's a nice quad-AA battery holder, with 6" leads.