A reverse-polarity wrapped CR2032 battery with attached wire leads - excellent for hobby electronics and science fair projects
$4.95 $2.79
Item#: 17156 Age: 18+
(2 customer reviews)
A wrapped CR2032 battery with attached wire leads - excellent as a CMOS motherboard battery of for hobby electronics and science fair projects.
$4.99 $2.79
Item#: 16798 Age: 18+
(12 customer reviews)
High-quality Panasonic CR2032 3V battery with wire leads and MOLEX 51021-0200-B (1.25mm pitch) connector already attached.
$5.99 $3.29
Item#: 17030 Age: 18+
(12 customer reviews)
Wrapped CR2032 battery with wire leads and JST SHR-02V-S-A (1.00 mm pitch) connector pre-attached.
$4.99 $2.79
Item#: 17361 Age: 18+
This standard 3.7V rechargeable Lithium 18650 battery cell is perfect for solar science fair projects involving panels.
$9.99 $4.99
Item#: 17118 Age: 18+
(8 customer reviews)
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.
$4.99 $2.79
Item#: 17303 Age: 18+
(4 customer reviews)
Don't have a 9V power adapter? No problem! Use this handy 9V battery adapter.
$1.99 $0.79
Item#: 17088 Age: 14+
Excellent AA alkaline batteries at an amazingly low price. SGS compliant and Mercury and Cadmium free.
$1.95 $1.19
Item#: 17362 Age: 14+
This rechargeable 18650 Lithium battery cell has a flat top and is perfect for battery power banks and holders.
$9.99 $4.95
Item#: 17117 Age: 18+
(1 customer reviews)
With this handy USB power supply you can get any voltage from 0.5V to 30V and up to 2A current.
$19.99 $14.95
Item#: 16887 Age: 18+
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.
$5.99 $3.59
Item#: 17115 Age: 18+
This is an affordable pack of five (5) CR1225 lithium batteries. Each battery is 3 Volts.
$2.99 $1.25
Item#: 17031 Age: 14+
This is a standard CMOS computer or laptop motherboard replacement battery. High-quality CR2032 Lithium ion cell with leads and connector.
$4.99 $2.79
Item#: 16483 Age: 18+
(18 customer reviews)
Save with this 10 pack of CR2032 batteries with wire leads!
$29.99 $27.90
Item#: 16639 Age: 18+
(10 customer reviews)
This is a four-pack of genuine AA Panasonic Alkaline Plus batteries. Great for science fair projects or science school lab.
$3.99 $2.19
Item#: 15466 Age: 18+
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,
$14.99 $7.95
Item#: 17344 Age: 18+
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.
$19.99 $9.95
Item#: 17345 Age: 18+
Keep your projects powered up and ready to go with our Lithium Ion Battery Charger featuring four independent bays.
$14.99 $7.95
Item#: 17488 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!
$2.99 $1.29
Item#: 17116 Age: 18+
With this handy USB power supply you can get any voltage from 1V to 30V and up to 2A current.
$29.99 $17.95
Item#: 17067 Age: 18+
(1 customer reviews)
This affordable USB power bank is great for charging your mobile devices or powering your hobby science projects.
$12.99 $7.95
Item#: 17112 Age: 18+
Genuine AAA Panasonic Alkaline Plus batteries - 4 pack.
$3.99 $2.19
Item#: 15468 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!
$3.99 $1.95
Item#: 17136 Age: 18+
This handy little module board will allow you to charge a single 18650 Lithium rechargeable battery safely
$4.95 $2.95
Item#: 17301 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.
$12.99 $7.95
Item#: 17086 Age: 18+
Affordable breadboard power supply with both 3.3V and 5V output.
$4.99 $2.49
Item#: 16758 Age: 14+
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.
$9.99 $5.99
Item#: 16762 Age: 14+
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.
$29.99 $19.95
Item#: 17168 Age: 18+
These rechargeable Lithium INR 18650 batteries are an excellent replacement for more expensive ICR 18650 ones.
$19.99 $12.95
Item#: 17356 Age: 18+
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.
$29.99 $19.95
Item#: 17169 Age: 18+
Power all your hobby circuits with this handy battery shield.
$17.99 $9.99
Item#: 16768 Age: 18+
These double-sided adhesive dots are perfect when mounting CMOS batteries to the motherboard, or any other crafting project.
$12.99 $6.95
Item#: 17389 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.
$19.99 $15.95
Item#: 17114 Age: 18+
A compact and safe 3V hand-crank DC generator ideal for science classrooms.
$49.99 $42.95
Item#: 17502 Age: 18+
Versatile and durable hand-crank DC generator that's perfect for science teachers.
$49.99 $42.95
Item#: 17501 Age: 18+
Great assortment of button cell watch batteries at a great price! Must-have for any household.
$9.99 $2.95
Item#: 17126 Age: 18+
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.
$129.99 $79.95
Item#: 17239 Age: 18+
Use this powerful DC adapter for a variety of electrical applications!
$12.99 $4.99
Item#: 14926 Age: 15+
(6 customer reviews)
Use this generator to demonstrate the 2nd law of thermodynamics!
$49.99 $39.95
Item#: 14618 Age: 15+
(3 customer reviews)
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
$29.99 $19.95
Item#: 16564 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.
$179.99 $139
Item#: 16948 Age: 18+
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.
$79.99 $59.95
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!
$4.99 $2.59
Item#: 16657 Age: 14+
Simple and reliable USB power bank.
$22.99 $15.95
Item#: 16882 Age: 14+
Welcome to xUmp.com, your one-stop shop for all your scientific and STEM needs! Our extensive selection of science supplies has been carefully curated by real scientists and educators, ensuring that you'll find only the best and most educational products on our site. Whether you're a teacher looking for classroom supplies, a student gearing up for a science fair, or a science enthusiast looking for the perfect gift, we've got you covered. From chemistry glassware and lab equipment to robots and science kits, we have everything you need to explore the exciting world of science. Browse our store today and discover the wonder of science!