Batteries, Adapters & Power Supplies
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+
(15 customer reviews)
Hand Held DC Generator
An excellent demonstration model for teaching about the conversion of mechanical energy to electrical energy!
Item#: 10876 Age: 7+
(3 customer reviews)
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+
(2 customer reviews)
Deluxe DC Crank Generator
A hand-cranked 12-volt DC generator, useful for experiments or as a unique flashlight
Item#: 15239 Age: 10+
(1 customer reviews)
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+
(1 customer reviews)
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+
(2 customer reviews)
10 pack CR2032 Batteries with Wire Leads (CMOS)
Save with this 10 pack of CR2032 batteries with wire leads!
Item#: 16639 Age: 18+
(1 customer reviews)
Power Pro DC Adapter - 12V 1000mA
Use this powerful DC adapter for a variety of electrical applications!
Item#: 14926 Age: 10+
(4 customer reviews)
4 AA Panasonic Alkaline Plus Batteries
Genuine AA Panasonic Alkaline Plus batteries - 4 pack.
Item#: 15466 Age: 18+
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+
Thermoelectric Generator
Use this generator to demonstrate the 2nd law of thermodynamics!
Item#: 14618 Age: 12+
(3 customer reviews)
9V Panasonic Alkaline Plus Battery
Genuine 9V Panasonic Alkaline Plus battery.
Item#: 15469 Age: 18+
4 AAA Panasonic Alkaline Plus Batteries
Genuine AAA Panasonic Alkaline Plus batteries - 4 pack.
Item#: 15468 Age: 18+
2 AAA Panasonic Alkaline Plus Batteries
Genuine AAA Panasonic Alkaline Plus batteries - 2 pack.
Item#: 15467 Age: 18+
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+
(1 customer reviews)
2 D Panasonic Alkaline Plus Battery
Genuine D Panasonic Alkaline Plus batteries - 2 pack.
Item#: 15470 Age: 18+
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+
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+
(1 customer reviews)
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+
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+
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+
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+
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+
3V-12V DC Variable Power Supply
Forget the batteries! This safe and reliable power supply is a convenient source of low voltage DC power. Dial easily turns to select the desired voltage and it plugs into a standard electrical outlet. 3V-12V DC, 1.25 amps max.
Item#: 16120 Age: 16+
Double 18650 Battery Charge Shield - 3V 5V DC Supply
Power all your hobby circuits with this handy battery shield.
Item#: 16768 Age: 18+
Solar Mobile PowerBank - Water-Resistant
This 20000 mAh Solar Mobile Power Bank is great for taking stored energy on the go.
Item#: 16908 Age: 14+
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+
Breadboard Power Supply 3.3V 5V USB Arduino
Affordable breadboard power supply with both 3.3V and 5V output.
Item#: 16758 Age: 14+
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+
