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Batteries, Adapters & Power Supplies


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Photo of the: MOLEX Connector CR2032 Battery with Wire Leads (CMOS)

MOLEX Connector CR2032 Battery with Wire Leads (CMOS)

A wrapped CR2032 battery with attached wire leads - excellent as a CMOS motherboard battery of for hobby electronics and science fair projects.

Item#: 16798 Age: 18+
5 star rating (11 customer reviews)

Photo of the: JST Connector CR2032 Lithium Battery with Wire Leads (CMOS)

JST Connector CR2032 Lithium Battery with Wire Leads (CMOS)

This CR2032 lithium metal coin battery has wire leads and a JST SHR-02V-S-B (1mm pitch) connector attached for easy connection to your equipment.

Item#: 17303 Age: 18+
5 star rating (4 customer reviews)

Photo of the: Reverse Polarity MOLEX Connector CR2032 Battery with Wire Leads (CMOS)

Reverse Polarity MOLEX Connector CR2032 Battery with Wire Leads (CMOS)

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

Item#: 17156 Age: 18+
5 star rating (1 customer reviews)

Photo of the: Reverse Polarity JST Connector CR2032 Battery with Wire Leads (CMOS)

Reverse Polarity JST Connector CR2032 Battery with Wire Leads (CMOS)

Wrapped CR2032 battery with wire leads and JST SHR-02V-S-A (1.00 mm pitch) connector pre-attached.

Item#: 17361 Age: 18+

Photo of the: Panasonic CR2032 CMOS Lithium Battery with Leads and MOLEX Connector

Panasonic CR2032 CMOS Lithium Battery with Leads and MOLEX Connector

High-quality Panasonic CR2032 3V battery with wire leads and MOLEX 51021-0200-B (1.25mm pitch) connector already attached.

Item#: 17030 Age: 18+
5 star rating (11 customer reviews)

Photo of the: 9V Battery Snap to DC Plug Adapter

9V Battery Snap to DC Plug Adapter

Don't have a 9V power adapter? No problem! Use this handy 9V battery adapter.

Item#: 17088 Age: 14+

Photo of the: ICR 18650 Blue Lithium-Ion Rechargeable Battery - 3.7V 2600mAh

ICR 18650 Blue Lithium-Ion Rechargeable Battery - 3.7V 2600mAh

This standard 3.7V rechargeable Lithium 18650 battery cell is perfect for solar science fair projects involving panels.

Item#: 17118 Age: 18+
5 star rating (6 customer reviews)

Photo of the: CR2032 Battery with Wire Leads and Connector (CMOS)

CR2032 Battery with Wire Leads and Connector (CMOS)

This is a standard CMOS computer or laptop motherboard replacement battery. High-quality CR2032 Lithium ion cell with leads and connector.

Item#: 16483 Age: 18+
5 star rating (17 customer reviews)

Photo of the: Tipsun AA Alkaline Batteries 2-pack - Mercury and Cadmium Free

Tipsun AA Alkaline Batteries 2-pack - Mercury and Cadmium Free

Excellent AA alkaline batteries at an amazingly low price. SGS compliant and Mercury and Cadmium free.

Item#: 17362 Age: 14+

Photo of the: ICR 18650 Green Flat-Top Lithium-Ion Cell Rechargeable Battery - 3.7V 2600mAh

ICR 18650 Green Flat-Top Lithium-Ion Cell Rechargeable Battery - 3.7V 2600mAh

This rechargeable 18650 Lithium battery cell has a flat top and is perfect for battery power banks and holders.

Item#: 17117 Age: 18+
5 star rating (1 customer reviews)

Photo of the: Fast USB Charger Adapter - 5V 2A

Fast USB Charger Adapter - 5V 2A

This fast charge (5V 2A) power adapter can be used to charge mobile phones, tablets and other devices. It can also be used as a power supply for various science and electronics experiments.

Item#: 17115 Age: 18+

Photo of the: Adjustable USB Power Supply - DP2F - 0.5V to 30V 2A

Adjustable USB Power Supply - DP2F - 0.5V to 30V 2A

With this handy USB power supply you can get any voltage from 0.5V to 30V and up to 2A current.

Item#: 16887 Age: 18+

Photo of the: CR1225 Lithium Battery - 5 pack

CR1225 Lithium Battery - 5 pack

This is an affordable pack of five (5) CR1225 lithium batteries. Each battery is 3 Volts.

Item#: 17031 Age: 14+

Photo of the: 4 AA Panasonic Alkaline Plus Batteries

4 AA Panasonic Alkaline Plus Batteries

This is a four-pack of genuine AA Panasonic Alkaline Plus batteries. Great for science fair projects or science school lab.

Item#: 15466 Age: 18+

Photo of the: USB Rechargeable Lithium-Ion 9V Battery with Cable

USB Rechargeable Lithium-Ion 9V Battery with Cable

You can use it just like a standard 9V battery, and you can re-charge it with just a standard USB port up to 1000 times,

Item#: 17344 Age: 18+

Photo of the: Two USB Rechargeable Lithium-Ion AA Batteries with Cable

Two USB Rechargeable Lithium-Ion AA Batteries with Cable

You can use them just like standard AA batteries, and you can re-charge them using just a standard USB port up to 1000 times.

Item#: 17345 Age: 18+

Photo of the: Digital Adjustable USB Power Supply - 1V to 30V 2A

Digital Adjustable USB Power Supply - 1V to 30V 2A

With this handy USB power supply you can get any voltage from 1V to 30V and up to 2A current.

Item#: 17067 Age: 18+
4 star rating (1 customer reviews)

Photo of the: CR2025 3V Lithium Battery - 5 pack

CR2025 3V Lithium Battery - 5 pack

A blister pack of 5 CR2025 Lithium batteries, ideal for LED remote controls, watches, clocks, calculators, electronics, cameras, LED tools, and so much more!

Item#: 17116 Age: 18+

Photo of the: Single Lithium Battery Charge Controller 5V 1A

Single Lithium Battery Charge Controller 5V 1A

This handy little module board will allow you to charge a single 18650 Lithium rechargeable battery safely

Item#: 17301 Age: 18+

Photo of the: Green USB Power Bank - 2600mAh 5V 1A

Green USB Power Bank - 2600mAh 5V 1A

This affordable USB power bank is great for charging your mobile devices or powering your hobby science projects.

Item#: 17112 Age: 18+

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: AG13 LR44 1.5V Alkaline Batteries - 10 pack

AG13 LR44 1.5V Alkaline Batteries - 10 pack

A blister pack of ten AG-13 LR44 alkaline batteries, ideal for watches, clocks, calculators, electronics, cameras, LED tools, and so much more!

Item#: 17136 Age: 18+

Photo of the: Digital USB Power Supply - Adjustable 1V-24V 1A

Digital USB Power Supply - Adjustable 1V-24V 1A

With this handy USB power supply you can get any voltage from 1V to 24V. Just plug it into your USB power bank or USB phone charger.

Item#: 17086 Age: 18+

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+
5 star rating (9 customer reviews)

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: 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: 3-24V 2A Adjustable DC Power Supply with Digital LCD Display

3-24V 2A Adjustable DC Power Supply with Digital LCD Display

You can adjust the output of this power supply from 3V to 24V DC, and it will give you a maximum of 2A current - which is more than enough to power all your science projects.

Item#: 17168 Age: 18+

Photo of the: 4-Pack of INR18650 Lithium-Ion Rechargeable Batteries - 3.7V 2200mAh

4-Pack of INR18650 Lithium-Ion Rechargeable Batteries - 3.7V 2200mAh

These rechargeable Lithium INR 18650 batteries are an excellent replacement for more expensive ICR 18650 ones.

Item#: 17356 Age: 18+

Photo of the: 3-12V 5A Adjustable DC Power Supply with Digital LCD Display

3-12V 5A Adjustable DC Power Supply with Digital LCD Display

Need an affordable DC power supply with an adjustable voltage and digital display? Look no further! This power supply is excellent for DIY hobby electronics projects, science fair projects, and school science labs.

Item#: 17169 Age: 18+

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: Analog Adjustable USB Power Supply - 1V to 30V 2A

Analog Adjustable USB Power Supply - 1V to 30V 2A

With this handy USB power supply you can get any voltage from 1V to 30V and up to 2A current with potentiometer (analog) adjustments.

Item#: 17114 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+
5 star rating (1 customer reviews)

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: Alkaline Button Cell Watch Batteries Assortment - set of 20

Alkaline Button Cell Watch Batteries Assortment - set of 20

Great assortment of button cell watch batteries at a great price! Must-have for any household.

Item#: 17126 Age: 18+

Photo of the: Thermoelectric Generator

Thermoelectric Generator

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

Item#: 14618 Age: 15+
5 star rating (3 customer reviews)

Photo of the: Adjustable DC Switching Power Supply - 0-30V 5A

Adjustable DC Switching Power Supply - 0-30V 5A

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 5A, and features a clean and easy-to-read digital display.

Item#: 17239 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: 15+
5 star rating (6 customer reviews)

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+

Photo of the: 12V 21Ah Lithium-Ion Rechargeable Battery
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12V 21Ah Lithium-Ion Rechargeable Battery

This high-capacity Lithium-ion rechargeable battery is great for your next solar energy science project, electric vehicles and bikes, scooters, golf carts and more.

Item#: 16948 Age: 18+

Photo of the: 3V-12V DC Variable Power Supply

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+

Photo of the: 3M Double-Sided Adhesive Mounting Dots - 50pcs - 23mm diameter

3M Double-Sided Adhesive Mounting Dots - 50pcs - 23mm diameter

These double-sided adhesive dots are perfect when mounting CMOS batteries to the motherboard, or any other crafting project.

Item#: 17389 Age: 18+

Photo of the: 5200mAh USB Mobile PowerBank - 5V 1A

5200mAh USB Mobile PowerBank - 5V 1A

Simple and reliable USB power bank.

Item#: 16882 Age: 14+

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 (2 customer reviews)

Photo of the: 12V 4400mAh Lithium Battery

12V 4400mAh Lithium Battery

This 12V 4400mAh lithium battery is perfect for solar science fair projects involving solar panels. Also great for building an off-grid solar power system for camping, RVs, or boats.

Item#: 16356 Age: 14+

Photo of the: 12V 9800mAh Lithium Battery

12V 9800mAh Lithium Battery

This 12V 9800mAh 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+


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