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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…
This breakout board uses the LTC3588 Piezoelectric Energy Harvester from Linear Technologies. This board can be used not only…
This is a unique two-cell AA battery holde. The 6" (~150mm) cable has been terminated with a JST-PH connector.
This is a simple coin cell battery holder that can enclose two CR2032 batteries inside itself, and safely kept closed via two…
The SparkFun Adjustable LiPo Charger is a single-cell lithium polymer (LiPo) and lithium ion battery charger. Because it’s …
These are high quality Single Pole - Double Throw (SPDT) sealed relays. Use them to switch high voltage, and/or high current …
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…
USB is being implemented as a power connection standard more and more these days, but you don't always have a computer on han…
This is a high-quality switching 'wall wart' AC to DC 5.1V 2,500mA USB Micro-B wall power supply manufactured specifically fo…
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…
This is an extremely tiny and light weight battery based on the new Polymer Lithium Ion chemistry. This is the highest energy…
Here is a very simple breadboard power supply kit that takes power from a DC wall wart and outputs a selectable 5V or 3.3V re…
Have a project that needs some good power? Do you like free power provided by our friend, Mr. Sun? Check out this high qualit…
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…
This is the SparkFun MOSFET Power Control Kit, a breakout PTH soldering kit for for the [RFP30N06LE](http://www.sparkfun.com/…
This 4xAA battery holder puts a nice finishing touch on your battery powered project. This holder features a removable, slidi…
If you need to charge LiPo batteries, this simple charger will do just that. It is designed to charge single-cell Li-Ion or L…
This is a simple cable that adapts from a USB port to a 5.5x2.1mm barrel connector, center positive. This cable allows the us…
This 2xAAA battery holder puts a nice finishing touch on your battery-powered project. This holder features a sliding, remova…
The SkyRC B6 V2 is a DC input high-performance, micro-processor controlled charge/discharge/DC/DC converter with battery mana…
This is a very simple board that takes a 4-9V input voltage and outputs a selectable 1.8V or 3.3V regulated voltage. All head…
This 9V battery holder allows your battery to snap in tight and holds it in place, which is great in situations where you don…
This is a portable, slim, lightweight solar panel charger with 10 watts of power and a standard USB connection port.
This is an incredibly simple one cell 18650 Battery Holder. When someone thinks of 18650 Cells they tend to think of flashlig…
The SparkFun Variable Load is a quick to assemble kit that has been designed to allow users to draw a specific amount of curr…
We've taken the classic, portable, rechargeable lithium ion battery pack and tweaked the design to make it amenable to low cu…
10Ah capacity & multiple USB options make this a great option for mobile USB power on your next project.
We use barrel jacks a lot around here and sometimes we need to pop a switch into the mix. That usually means hacking up a per…
This is the basic LD1117V33 voltage regulator, a low drop positive regulator with a 3.3V fixed output voltage. This fixed reg…
CR1225 lithium metal 3V 12mm 47mAh coin cell batteries. Perfect small battery for miniature sensor node applications. Thes…
A very simple breadboard power supply kit that takes power from any USB port and outputs a fuse protected and regulated 3.3V.…
The ATX power connector breaks out the standard 4-pin computer peripheral port for you 12V & 5V devices from one wall adapter…
Simple 4 Cell AA Battery holder with 5" tinned leads, square configuration.
The SparkFun Qwiic Dual Solid State Relay is a power delivery board that allows users to switch two AC loads from a low power…
You don’t have the power? Well, there’s no need to ask Scotty – the SparkFun Benchtop Power Board Kit has your back. Th…
MOSFETs are awesome. They're like a switch that you flip electronically! This SparkFun MOSFET Power Controller makes it easy …
The Soft Power Switch is a passive, hard on/off switch with software feedback and control. In other words, it's like the on/o…
This is a classic 9V snap connector terminated with 2-pin polarized Molex connector with 0.1" spacing.
The SparkFun ESP32 Thing Power Control Shield enables the ESP32 Thing to switch up to 5A of a DC load, providing a wide varie…
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 …
This is the basic L7805 voltage regulator, a three-terminal positive regulator with a 5V fixed output voltage. This fixed reg…
This USB AC to DC power supply will do 5V at 2A!
The PowerPal is a breadboard-friendly 3A power supply module that allows you to select from four different output voltage le…
The KR Sense 45A is a small voltage and current sense breakout board.
This is an incredibly simple two cell 18650 Battery Holder. When someone thinks of 18650 Cells they tend to think of flashlig…
