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2x CR2032 battery holder with 12" of wire.
It's a nice quad-AA battery holder, with 6" leads.
If you need to charge LiPo batteries, this simple charger will do just that, and do it fast!
LR44 Alkaline Battery
This unit is great for wiring up 3 AA batteries in series.
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!
Volume III of the Forrest Mims Engineer's Mini Notebook series includes three of his best-selling notebooks devoted to sensors: Sensor Projects; Solar Cell Projects; and Magnet Sensor Projects.
This is truly the Ultimate BrutusBot! It will do robotic front flips through the snow and keep on going!
Horns constructed from Fosshape - a heat-formable costuming fabric.
Here's a common light weight 2032 coincell battery. Great for powering tiny robots, real time clocks and LED throwies!
15 ultrabright red, yellow and white LEDs with built-in flickering circuits and assorted lens sizes from 3mm and 10mm.
This high discharge 2-cell LiPo is a great way to power any R/C, robotic, or portable project. This is an excellent choice for anything that requires a small battery with a lot of punch.
This high discharge LiPo is a great way to power any R/C, robotic, or portable project. This is an excellent choice for anything that requires a small battery with a lot of punch.
Have some low-capacity 1S LiPo cells needing a convenient charger? Simple and cheap!
LilyPad Development Board - Wearables design system
Soldering irons are great when mains power is nearby. For those times when you need to crawl under a car dash, the Hakko battery-powered version suits the need better.
Here's a different type of CR2032/CR2025/CR2016 battery holder, that has the cell clip into it from the top rather than the side.
A convenient little switch to easily turn on and off your LiPoly batteries when prototyping.
These are very slim, extremely light weight batteries based on the new Polymer Lithium Ion chemistry.
Charge and power your Pro Trinket with this LiIon/LiPoly Backpack Add-on board by Adafruit.
Add a High Capacity Rechargeable power supply to your project easily!
Our GraviTrack Marble Machine Kit is our newest addition to the Marble-Drop mechanism family.
The fun of a Marble Machine, miniaturized for your desk, now battery powered!
Simple LiPo single-cell charger from Sparkfun, with a Micro-USB cable connector.
What makes this battery special for E-textiles? Built-in current limiting for safety.
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Warning: This product contains chemicals known to the State of California to cause cancer and birth defects or other reproductive harm. Please visit www.P65Warnings.ca.gov for more information. This item was manufactured prior to August 31, 2018.