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Power (203 products)

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Battery Fuses Power Accessories Power Charger Power Supply Relay Solar Voltage Wall Adapter

added to your cart!

PiJuice HAT - Raspberry Pi Portable Power Platform

In stock PRT-14803

The PiJuice is a fully uninterruptible power supply HAT that will always keep your Raspberry Pi powered.

$64.95

Favorited Favorite 37

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added to your cart!

SparkFun LiPo Charger Basic - Micro-USB

In stock PRT-10217

If you need to charge LiPo batteries, this simple charger will do just that, and do it fast! The SparkFun LiPo Charger Basic …

$8.95

Favorited Favorite 52

Wish List

added to your cart!

SparkFun Sunny Buddy - MPPT Solar Charger

In stock PRT-12885

This is the Sunny Buddy, a maximum power point tracking (MPPT) solar charger for single-cell LiPo batteries. This MPPT solar …

$26.95

Favorited Favorite 59

Wish List

added to your cart!

Lithium Ion Battery - 400mAh

Out of stock PRT-13851

This is a very small, extremely lightweight battery based on Lithium Ion chemistry, with the highest energy density currently…

$4.95

Favorited Favorite 32

Wish List

added to your cart!

Lithium Ion Battery - 1Ah

In stock PRT-13813

These are very slim, extremely light weight batteries based on Lithium Ion chemistry. Each cell outputs a nominal 3.7V at 100…

$9.95

Favorited Favorite 58

Wish List

added to your cart!

SparkFun Qwiic Quad Relay

In stock COM-16566

The SparkFun Qwiic Quad Relay is a unique power accessory board, used for switching 4 high powered devices from your Arduino …

$29.95

Favorited Favorite 4

Wish List

added to your cart!

Lithium Ion Battery - 2Ah

In stock PRT-13855

These are very slim, extremely light weight batteries based on Lithium Ion chemistry. Each cell outputs a nominal 3.7V at 200…

$12.95

Favorited Favorite 30

Wish List

added to your cart!

IoT Power Relay

In stock COM-14236

Do you want to control a standard wall outlet device with your microcontroller, but don’t want to mess with the high-voltag…

$26.95

Favorited Favorite 52

Wish List

added to your cart!

SparkFun LiPo Charger/Booster - 5V/1A

In stock PRT-14411

The SparkFun 5V/1A LiPo Charger/Booster is a no-nonsense circuit for generating one amp from a Lithium Polymer battery at 5V.…

$15.95

Favorited Favorite 22

Wish List

added to your cart!

SparkFun Battery Babysitter - LiPo Battery Manager

In stock PRT-13777

The SparkFun Battery Babysitter is an all-in-one single-cell Lithium Polymer (LiPo) battery manager. It’s half battery char…

$19.95

Favorited Favorite 52

Wish List

added to your cart!

DC Barrel Jack Adapter - Female

In stock PRT-10288

This adapter allows you to connect a barrel jack connector to bare wires. One end has screw terminals and the other has a 5.5…

$2.95

Favorited Favorite 19

Wish List

added to your cart!

SparkFun Power Delivery Board - USB-C (Qwiic)

In stock DEV-15801

The SparkFun Power Delivery Board provides takes 5-20V input and produces up to 100W power, so you can use the same power ada…

$24.95

Favorited Favorite 15

Wish List

added to your cart!

SparkFun Qwiic Single Relay

Out of stock COM-15093

The SparkFun Qwiic Single Relay provides you with the easiest to use relay yet, handling up to 5.5A at 240VAC for long period…

$11.95

Favorited Favorite 14

Wish List

added to your cart!

SparkFun Qwiic Quad Solid State Relay Kit

In stock KIT-16833

The SparkFun Qwiic Quad Solid State Relay Kit takes one of our favorite solid state relays and lets you place up to four of t…

$39.95

Favorited Favorite 16

Wish List

added to your cart!

SparkFun LiPo Charger Plus

Out of stock PRT-15217

The SparkFun LiPo Charger Plus is the suped-up power option in the SparkFun line of single-cell lithium polymer (LiPo) batter…

$9.95

Favorited Favorite 17

Wish List

added to your cart!

Lithium Ion Battery - 110mAh

In stock PRT-13853

This is a very small, extremely light weight battery based on Lithium Ion chemistry. This is the highest energy density curre…

$4.95

Favorited Favorite 13

Wish List

added to your cart!

SparkFun Buck-Boost Converter

In stock COM-15208

The SparkFun Buck-Boost Converter is a handy power accessory board that allows you to fine tune the amount of power your proj…

$9.95

Favorited Favorite 19

Wish List

added to your cart!

Solid State Relay - 40A (3-32V DC Input)

In stock COM-13015

A solid state relay (SSR) allows you to control high-curent AC loads from lower voltage DC control circuitry. Solid state rel…

$9.95

Favorited Favorite 32

Wish List

added to your cart!

Lithium Ion Battery - 850mAh

29 available PRT-13854

These are very slim, extremely light weight batteries based on Lithium Ion chemistry. Each cell outputs a nominal 3.7V at 850…

$9.95

Favorited Favorite 9

Wish List

added to your cart!

Wall Adapter Power Supply - 5VDC, 2A (Barrel Jack)

32 available TOL-15312

This is a high quality switching 'wall wart' AC to DC 5V 2000mA Barrel Jack wall power supply manufactured specifically for S…

$5.95

Favorited Favorite 9

Wish List

added to your cart!

SparkFun Breadboard Power Supply Stick - 5V/3.3V

In stock PRT-13032

This is a very simple board that takes a 6-12V input voltage and outputs a selectable 5V or 3.3V regulated voltage. All heade…

$11.95

Favorited Favorite 60

Wish List

added to your cart!

KTA-223 USB/RS485 Relay IO Board

Out of stock DEV-09526

The KTA-223 Relay Board is a USB or RS485 controlled module that can interface a PC to eight or more SPDT relays. This could …

$144.95

Favorited Favorite 4

Wish List

added to your cart!

Wall Adapter Power Supply - 12VDC, 600mA (Barrel Jack)

In stock TOL-15313

This is a high quality AC to DC 'wall wart' which produces a regulated output of 12VDC at up to 600mA.

$5.95

Favorited Favorite 4

Wish List

added to your cart!

Coin Cell Battery - 20mm (CR2032)

In stock PRT-00338

CR2032 Lithium metal 3V 250mAh button cell battery. Great for powering low power processors or blink an LED for weeks at a ti…

$1.95

Favorited Favorite 28

Wish List

added to your cart!

SparkFun Beefcake Relay Control Kit (Ver. 2.0)

In stock KIT-13815

Your 5V system can wield great power with this big, beefy relay board. How does 10A on the NC contacts and 20A on the NO cont…

$8.95

Favorited Favorite 28

Wish List

added to your cart!

SparkFun USB LiPoly Charger - Single Cell

31 available PRT-12711

If you need to charge LiPo batteries, this simple charger will do just that, and do it fast! The SparkFun USB LiPo Charger is…

$15.95

Favorited Favorite 29

Wish List

added to your cart!

SparkFun SOT23 to DIP Adapter

Out of stock BOB-00717

6 pin SOT-23 to DIP adaptor. Created to take SOT23 of various pin sizes breakout to DIP. This will work with 3-pin MOSFETs, B…

$0.95

Favorited Favorite 5

Wish List

added to your cart!

Lithium Ion Battery - 6Ah

In stock PRT-13856

If you need some juice, this 6Ah Lithium Ion Battery is for you. These are very compact batteries based on Lithium Ion chemis…

$29.95

Favorited Favorite 29

Wish List

added to your cart!

RELAYplate

17 available DEV-14150

The RELAYplate from Pi-Plates is the first dedicated relay board for the Raspberry Pi designed to meet the safety requirement…

$41.95

Favorited Favorite 16

Wish List

added to your cart!

Digital LED Voltmeter

In stock PRT-14313

This Digital LED Voltmeter measures the voltage at a particular point of the system it has been hooked up to and then provide…

$1.75

Favorited Favorite 16

Wish List

added to your cart!

Solar Panel - 3.5W

In stock PRT-13782

Have a project that needs some good power? Do you like free power provided by our friend, Mr. Sun? Check out this high qualit…

$39.00

Favorited Favorite 15

Wish List

added to your cart!

Wall Adapter Power Supply - 5.1V DC 2.5A (USB Micro-B)

In stock TOL-13831

This is a high-quality switching 'wall wart' AC to DC 5.1V 2,500mA USB Micro-B wall power supply manufactured specifically fo…

$7.95

Favorited Favorite 43

Wish List

added to your cart!

LiPower - Boost Converter

In stock PRT-10255

The LiPower board is based on the incredibly versatile TPS61200 boost converter. The board is configured to be used with a Li…

$15.95

Favorited Favorite 27

Wish List

added to your cart!

Power Supply - 5V, 4A

30 available TOL-15352

This is a high quality power supply manufactured specifically for SparkFun Electronics packs a lot of power; 20W at 5V and 40…

$12.95

Favorited Favorite 9

Wish List

added to your cart!

Relay SPDT Sealed

In stock COM-00100

These are high quality Single Pole - Double Throw (SPDT) sealed relays. Use them to switch high voltage, and/or high current …

$1.95

Favorited Favorite 27

Wish List

added to your cart!

SparkFun Energy Harvester Breakout - LTC3588

In stock BOB-09946

This breakout board uses the LTC3588 Piezoelectric Energy Harvester from Linear Technologies. This board can be used not only…

$29.95

Favorited Favorite 34

Wish List

added to your cart!

E-Textiles Battery - 110mAh (2C Discharge)

In stock PRT-13112

This is a very small, extremely lightweight battery based on Polymer Lithium Ion chemistry. This is the highest energy densit…

$6.95

Favorited Favorite 23

Wish List

added to your cart!

Wall Adapter Power Supply - 9VDC, 650mA (Barrel Jack)

In stock TOL-15314

This is a high quality switching 'wall wart' AC to DC 9V 650mA wall power supply manufactured specifically for SparkFun Elect…

$5.95

Favorited Favorite 5

Wish List

added to your cart!

USB Power Meter (Color TFT LCD)

In stock TOL-15571

This USB Power Meter is a versatile tool that can provide voltage, current, capacity, and impedance displayed on the built-in…

$24.95

Favorited Favorite 15

Wish List

added to your cart!

SparkFun Nano Power Timer - TPL5110

In stock PRT-15353

The SparkFun Nano Power Timer will run while only consuming minimal power (approximately 35nA) and turn your project on after…

$5.95

Favorited Favorite 18

Wish List

added to your cart!

Battery Holder - 4xAA to Barrel Jack Connector

In stock PRT-09835

This is a simple 4 cell AA battery holder. The 5 inch cable is terminated with a standard 5.5x2.1mm, center positive barrel j…

$2.49

Favorited Favorite 20

Wish List

added to your cart!

USB Car Charger - 5V, 2.4A

In stock TOL-16886

This is a cost effective 5V, 2.4A dual USB Output Car Charger with Smart IC.

$2.95

Favorited Favorite 0

Wish List

added to your cart!

9V to Barrel Jack Adapter

In stock PRT-09518

This simple cable has so many uses! Plug the 9 volt battery clip onto a standard 9V battery and connect the other end to anyt…

$2.95

Favorited Favorite 31

Wish List

added to your cart!

SkyRC IMAX B6 V2 Professional Balance Charger / Discharger

In stock PRT-16793

The SkyRC B6 V2 is a DC input high-performance, micro-processor controlled charge/discharge/DC/DC converter with battery mana…

$34.95

Favorited Favorite 0

Wish List

added to your cart!

N-Channel MOSFET 60V 30A

Out of stock COM-10213

If you've ever wondered how to control the headlight of a car from a microcontroller, a MOSFET is what you need. This is a ve…

$0.95

Favorited Favorite 42

Wish List

added to your cart!

SparkFun MOSFET Power Controller

Out of stock PRT-11214

MOSFETs are awesome. They're like a switch that you flip electronically! This SparkFun MOSFET Power Controller makes it easy …

$8.95

Favorited Favorite 18

Wish List

added to your cart!

Wall Adapter Power Supply - 5VDC, 2A (USB Micro-B)

In stock TOL-15311

This is a high quality switching 'wall wart' AC to DC 5V 2000mA USB Micro-B wall power supply manufactured specifically for S…

$5.95

Favorited Favorite 2

Wish List

added to your cart!

DC Barrel Jack Adapter - Male

In stock PRT-10287

This adapter allows you to connect a barrel jack connector to bare wires. One end has screw terminals and the other has a 5.5…

$2.95

Favorited Favorite 13

Wish List

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