A wrapped CR2032 battery with attached wire leads - excellent for hobby electronics and science fair projects
Item#: 16798 Age: 14+
(4 customer reviews)
High-quality Panasonic CR2032 3V battery with wire leads and MOLEX 51021-0200-B (1.25mm pitch) connector already attached.
Item#: 17030 Age: 18+
(1 customer reviews)
A wrapped CR2032 battery with attached wire leads - excellent for hobby electronics and science fair projects
Item#: 16483 Age: 14+
(17 customer reviews)
A reverse-polarity wrapped CR2032 battery with attached wire leads - excellent for hobby electronics and science fair projects
Item#: 17156 Age: 18+
Don't have a 9V power adapter? No problem! Use this handy 9V battery adapter.
Item#: 17088 Age: 14+
Genuine AAA Panasonic Alkaline Plus batteries - 4 pack.
Item#: 15468 Age: 18+
Affordable breadboard power supply with both 3.3V and 5V output.
Item#: 16758 Age: 14+
A blister pack of 9 3V CR2032 Lithium Cell Batteries, usually used for remote controls, but, more frequently, computer motherboards.
Item#: 15992 Age: 18+
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+
With this handy USB power supply you can get any voltage from 1V to 30V and up to 2A current.
Item#: 17067 Age: 18+
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+
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+
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)
A hand-cranked 12-volt DC generator, useful for experiments or as a unique flashlight
Item#: 15239 Age: 10+
(1 customer reviews)
Use this powerful DC adapter for a variety of electrical applications!
Item#: 14926 Age: 10+
(5 customer reviews)
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+
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)
Great assortment of button cell watch batteries at a great price! Must-have for any household.
Item#: 17126 Age: 18+
Genuine D Panasonic Alkaline Plus batteries - 2 pack.
Item#: 15470 Age: 18+
Genuine AA Panasonic Alkaline Plus batteries - 4 pack.
Item#: 15466 Age: 18+
Genuine 9V Panasonic Alkaline Plus battery.
Item#: 15469 Age: 18+
An excellent demonstration model for teaching about the conversion of mechanical energy to electrical energy!
Item#: 10876 Age: 7+
(3 customer reviews)
Plastic casing that uses 2 AA batteries to produce the same voltage output as a D battery (1.5V)
Item#: 16424 Age: 14+
Save with this 10 pack of CR2032 batteries with wire leads!
Item#: 16639 Age: 18+
(1 customer reviews)
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+
This is an affordable pack of five (5) CR1225 lithium batteries. Each battery is 3 Volts.
Item#: 17031 Age: 14+
Power all your hobby circuits with this handy battery shield.
Item#: 16768 Age: 18+
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+
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+
Use this generator to demonstrate the 2nd law of thermodynamics!
Item#: 14618 Age: 12+
(3 customer reviews)
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+
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+
This standard 18650 3.7V rechargeable Lithium battery cell is perfect for solar science fair projects involving panels.
Item#: 17118 Age: 18+
This green version of the standard 18650 Lithium cell has a flatter + terminal which makes it perfect when building multiple cell battery banks.
Item#: 17117 Age: 18+
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+
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)
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+
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+
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+
At xUmp.com you will find a large selection of scientific products carefully curated by real scientists and educators. We sell everything from educational toys, teacher supplies for science classroom, lab equipment, science toys, science fair supplies, classroom equipment, chemistry glassware, chemistry lab equipment, physics demos, electronics supplies, robots, science kits to geeky science gifts.