Sparkfun

US$5.88

This is a package of ten 6 inch single male to male jumper wire set good for prototyping wire connection. These are 155mm long jumpers with male connectors on both ends.

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US$4.82
This is a massive single pole - double throw (SPDT) sealed relay. This means that when current is applied to the coil it throws a simple changeover switch, terminating the connection from the NC contact to ground and closing the NO contact. Use them to switch high voltage/high current devices.
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US$51.73
This is designed to allow you to safely control an outlet device without exposing any 120VAC voltages. You can plug in any standard 120VAC 3-prong outlet to be controlled by most any microcontroller. This will work great with Arduino!
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US$7.87

This smaller solenoid is designed to work directly with 5V which makes it a great match for embedded projects.

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US$3.00

This is a carbon fiber safety cover protects a toggle switch from accidentally being turned on.

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US$1.33

Holds battery in place with friction. The metal housing connects to the positive side of the battery and the PCB pad underneath is connected to the negative side.

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US$4.92

This 9V battery holder allows your battery to snap in tight and holds it in place and has a DC plug output connector. Great for situations where you don't want the battery just hanging. It also has three mounting holes so you can attach it securely to your enclosure.

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US$1.33

PCB mount clip to hold a AA battery. Sold in single units, you'll need two. These work great for small, low power applications that need a battery to run. Low cost and easy to use!

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US$5.53

Simple 4 Cell AA Battery holder with 5" leads with polarized termination, square configuration.

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US$2.10

This 2xAA battery holder with removable sliding cover and on/off switch puts a nice finishing touch on your battery powered project.

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US$2.10

This 2xAA battery holder with a removable sliding cover and On/Off switch puts a nice finishing touch on your battery powered project.

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US$15.88
The LiPo Charger Basic is stripped down of all features and just does one thing well - charge 3.7V LiPo cells at a rate of 500mA per hour. It is designed to charge single-cell Li-Ion or Li-Polymer batteries.
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US$14.58
It is designed to charge single-cell Li-Ion or Li-Polymer batteries. The board incorporates a charging circuit, status LED, connector for your battery (JST-type used in the batteries we carry), and a mini-USB connector.
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US$2.73
This is a 3xAA battery holder with removable sliding cover and on/off switch puts a nice finishing touch on your battery powered project. This holder features a removable, sliding cover, which is secured with a small phillips head screw.
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US$11.99
These are very slim, extremely light weight batteries based on the new Polymer Lithium Ion chemistry. This is the highest energy density currently in production. Each cells outputs a nominal 3.7V at 2000mAh! This battery comes terminated with a standard 2-pin JST-PH connector - 2mm spacing between pins. Do not attempt to charge these with anything but a charger specifically designed for Lithium Ion batteries.
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