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Batteries, Adapters & Power Supplies

Photo of the: CR2032 Battery with Wire Leads and Connector (CMOS, Laptop, Notebook, Motherboard, Bristlebots, etc.)

CR2032 Battery with Wire Leads and Connector (CMOS, Laptop, Notebook, Motherboard, Bristlebots, etc.)

A wrapped CR2032 battery with attached wire leads - excellent for hobby electronics and science fair projects

Item#: 16483 Age: 14+
5 star rating (10 customer reviews)

Photo of the: Hand Held DC Generator

Hand Held DC Generator

An excellent demonstration model for teaching about the conversion of mechanical energy to electrical energy!

Item#: 10876 Age: 7+
5 star rating (3 customer reviews)

Photo of the: 3V CR1220 Lithium Coin Cell Battery with Leads

3V CR1220 Lithium Coin Cell Battery with Leads

This battery can be used with anything from personal computers, workstations and test equipment to telephones, copiers and remotes.

Item#: 15853 Age: 14+
5 star rating (2 customer reviews)

Photo of the: Deluxe DC Crank Generator

Deluxe DC Crank Generator

A hand-cranked 12-volt DC generator, useful for experiments or as a unique flashlight

Item#: 15239 Age: 10+
5 star rating (1 customer reviews)

Photo of the: 10 pack CR2032 Batteries with Wire Leads (CMOS)

10 pack CR2032 Batteries with Wire Leads (CMOS)

Save with this 10 pack of CR2032 batteries with wire leads!

Item#: 16639 Age: 18+

Photo of the: Power Pro DC Adapter - 12V 1000mA

Power Pro DC Adapter - 12V 1000mA

Use this powerful DC adapter for a variety of electrical applications!

Item#: 14926 Age: 10+
5 star rating (3 customer reviews)

Photo of the: Thermoelectric Generator

Thermoelectric Generator

Use this generator to demonstrate the 2nd law of thermodynamics!

Item#: 14618 Age: 12+
5 star rating (3 customer reviews)

Photo of the: 3.7V 5000mAh 18650 Lithium Battery Cell

3.7V 5000mAh 18650 Lithium Battery Cell

This 3.7V lithium battery is perfect for solar science fair projects involving panels. Also great for building an off-grid solar power system for camping, RVs, or boats.

Item#: 16358 Age: 14+
5 star rating (2 customer reviews)

Photo of the: CR2032 Lithium Cell Batteries - 9 pack

CR2032 Lithium Cell Batteries - 9 pack

A blister pack of 9 3V CR2032 Lithium Cell Batteries, usually used for remote controls, but, more frequently, computer motherboards.

Item#: 15992 Age: 18+

Photo of the: 4 AA Panasonic Alkaline Plus Batteries

4 AA Panasonic Alkaline Plus Batteries

Genuine AA Panasonic Alkaline Plus batteries - 4 pack.

Item#: 15466 Age: 18+

Photo of the: 9V Panasonic Alkaline Plus Battery

9V Panasonic Alkaline Plus Battery

Genuine 9V Panasonic Alkaline Plus battery.

Item#: 15469 Age: 18+

Photo of the: CR2032 Battery with Wire Leads and Molex 51021-0200-B (1.25mm pitch) Connector (CMOS)

CR2032 Battery with Wire Leads and Molex 51021-0200-B (1.25mm pitch) Connector (CMOS)

A wrapped CR2032 battery with attached wire leads - excellent for hobby electronics and science fair projects

Item#: 16798 Age: 14+

Photo of the: 4 AAA Panasonic Alkaline Plus Batteries

4 AAA Panasonic Alkaline Plus Batteries

Genuine AAA Panasonic Alkaline Plus batteries - 4 pack.

Item#: 15468 Age: 18+

Photo of the: 2 AAA Panasonic Alkaline Plus Batteries

2 AAA Panasonic Alkaline Plus Batteries

Genuine AAA Panasonic Alkaline Plus batteries - 2 pack.

Item#: 15467 Age: 18+

Photo of the: 2 D Panasonic Alkaline Plus Battery

2 D Panasonic Alkaline Plus Battery

Genuine D Panasonic Alkaline Plus batteries - 2 pack.

Item#: 15470 Age: 18+

Photo of the: AG-13 Alkaline Batteries - 20 pack

AG-13 Alkaline Batteries - 20 pack

A 20-pack of AG-13 Alkaline Batteries, ideal for watches, clocks, calculators, electronics, cameras, LED tools, and more

Item#: 15993 Age: 18+

Photo of the: 10A 12V Lithium Battery Solar Charge Controller

10A 12V Lithium Battery Solar Charge Controller

Solar charge controllers are essential for ensuring the smooth functioning of a solar panel and its battery. This 10A model is suitable for 12V/24V DC.

Item#: 16345 Age: 18+

Photo of the: 20A 12V Lithium Battery Solar Charge Controller

20A 12V Lithium Battery Solar Charge Controller

20A Solar Charge Controller, suitable for 12V/24V DC units. Solar charge controllers are essential for ensuring the smooth functioning of a solar panel and its battery.

Item#: 16346 Age: 18+
5 star rating (1 customer reviews)

Photo of the: 12V 9800mAh Lithium Battery

12V 9800mAh Lithium Battery

This 12V lithium battery is perfect for solar science fair projects involving panels. Also great for building an off-grid solar power system for camping, RVs, or boats.

Item#: 16357 Age: 14+

Photo of the: 2xAA to D Battery Converter

2xAA to D Battery Converter

Plastic casing that uses 2 AA batteries to produce the same voltage output as a D battery (1.5V)

Item#: 16424 Age: 14+

Photo of the: 12V 4400mAh Lithium Battery

12V 4400mAh Lithium Battery

This 12V lithium battery is perfect for solar science fair projects involving panels. Also great for building an off-grid solar power system for camping, RVs, or boats.

Item#: 16356 Age: 14+

Photo of the: 3.7V Lithium Battery Indicator/Tester

3.7V Lithium Battery Indicator/Tester

This visual/graphic voltmeter is excellent for checking the levels of 3.7V lithium cells - get the most from your batteries and devices!

Item#: 16657 Age: 14+

Photo of the: Lab DC Switching Power Supply 0-30V 0-3A
FREE SHIPPING

Lab DC Switching Power Supply 0-30V 0-3A

This power supply is perfect for use in classrooms or laboratories. The unit produces variable 0 to 30V DC at up to a maximum of 3A, and features a clean and easy-to-read digital display.

Item#: 16351 Age: 18+

Photo of the: 18650 Battery Charge Shield - 3V 5V DC Supply

18650 Battery Charge Shield - 3V 5V DC Supply

Great for teachers - no more wasting AA batteries! With outputs of 3V and 5V DC you can use this shield with a variety of circuits with lightbulbs, buzzers, DC motors, LEDs, etc.

Item#: 16762 Age: 14+

Photo of the: Double 18650 Battery Charge Shield - 3V 5V DC Supply

Double 18650 Battery Charge Shield - 3V 5V DC Supply

Power all your hobby circuits with this handy battery shield.

Item#: 16768 Age: 18+

Photo of the: Breadboard Power Supply 3.3V 5V USB Arduino

Breadboard Power Supply 3.3V 5V USB Arduino

Affordable breadboard power supply with both 3.3V and 5V output.

Item#: 16758 Age: 14+

Photo of the: Switching Power Supply - 3V to 12V

Switching Power Supply - 3V to 12V

This innovative adapter uses state-of-the-art switching technology to allow the user to choose various output voltages from a range between 3V and 12V

Item#: 16564 Age: 18+

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