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This USB Power Meter is a versatile tool that can provide voltage, current, capacity, and impedance displayed on the built-in…
10Ah capacity & multiple USB options make this a great option for mobile USB power on your next project.
This 3xAA battery holder with bare wire leads puts a nice finishing touch on your battery powered project.
The 0.3 Watt Volt mini solar panel from Voltaic Systems is a lightweight, waterproof, solar panel designed for 5-7 year outdo…
This 3xAA battery holder with JST connector puts a nice finishing touch on your battery powered project.
This high discharge LiPo is a great way to power any R/C, robotic, or portable project. This is an excellent choice for anyth…
This is a simple 48W (8V DC, 6A) power supply, designed for use with the Raspberry Pi Build HAT.
The 0.6 Watt Volt small solar panel from Voltaic Systems is a lightweight, waterproof, small solar panel designed for 5-7 yea…
This is an incredibly simple two cell 18650 Battery Holder. When someone thinks of 18650 Cells they tend to think of flashlig…
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…
The ATX power connector breaks out the standard 4-pin computer peripheral port for you 12V & 5V devices from one wall adapter…
Basic 20mm coin cell holder. Posts can be inserted into 0.1" perf board! Holds the common CR2032 type batteries.
This relay's coil is rated up to 3V, with a maximum switching voltage of 250VAC, 125VDC. The contacts are rated up to 10A (@1…
These are massive single pole - double throw (SPDT) sealed relays. This means that when current is applied to the coil it thr…
This female barrel jack plug is great for adding a common connector to the end of wires. This jack is compatible with 5.5x2.1…
2500mAh 1.2V Nickel Metal Hydride rechargeable 'AA' batteries. [NiMH technology](http://en.wikipedia.org/wiki/Nickel_metal_hy…
This is a PCB mount clip to hold a 18650 Lithium Ion Cell battery. Each battery holder is sold in single units, you'll need t…
This is a handy little device that can save your system from smoking. A resettable fuse (also known as a [PTC](http://en.wiki…
This analog panel meter measures DC voltage from 0-5 volts with 2.5% accuracy. It has a clear and easy to read scale and an a…
These are your standard 1.5V AA alkaline batteries from Panasonic.
Do you fear that your power may not be "far reaching" enough? How would another 3' work for you? Okay, so it doesn't sound ve…
These are your standard 9 Volt alkaline batteries from Rayovac. Don't even think about trying to recharge these. Use them wit…
Now for all of your coin cell battery surface mount needs, the 20mm SMD Coin Cell Holder. This holder fits our 20mm Lithium I…
This is the LM317TG voltage regulator, a three-terminal positive regulator with a 1.2V to 37V adjustable output voltage. This…
The SparkFun Power Supply Sample Kit provides you with a sampling of the power supplies that we offer to power your next proj…
This is the CR2025 20mm coin cell battery. You may be wondering what sets this guy apart from the more common CR2032 coin cel…
This is a USB Type-C Power Supply that is compatible with the Raspberry Pi 4.
The KR Sense 90A is a small voltage and current sense breakout board.
10AH Lithium Battery Power Bank with Digital Readout and 3 Connector Cables and two Ports.
This is a through-hole 12mm coin cell battery holder. It's the unit we like to use as RTC backup and SRAM backup for GPS unit…
This USB AC to DC power supply will do 5V at 2A!
This is a 3-pack of international wall adapter sockets for the UK/EU/AU.
PCB mount clip to hold a AAA battery. Sold in single units, you'll need two for each battery. These work great for small, low…
SparkFun Jetson Nano Intermediate Kit with Power Supply provides you with all of the essential parts needed to start new proj…
Use this high-strength acrylic gasket to attach the 1.2W panels from Voltaic Systems to an enclosure.
This is a right-angle, 24-pin Molex Mini-Fit Jr.™ connector, commonly used as the power supply connector on [ATX](http://en…
This adaptor allows you to power your RPi 4 with a previous usb-micro B power supply.
A 2 x AAA battery box with a JST connector for powering the micro:bit.
A simple Lead-acid battery charger for 13.8VDC Lead-acid batteries. It comes in a robust metal enclosure (IP68 rated) with a …
This is the basic L7812 voltage regulator, a three-terminal positive regulator with a 12V fixed output voltage. This fixed re…
A 2 x AAA battery box with a JST connector and on/off switch for powering the micro:bit.
These are your standard 1.5V AAA alkaline batteries from Energizer.
Use this high-strength acrylic gasket to attach the 0.3W panels from Voltaic Systems to an enclosure.
This is a 5mm PTH fuse clip intended to be used with our Glass Fuses. **Note: **These are sold in single units. If you inten…
These Adam Tech Wall Adapter Cables are terminated with a standard European (CEE 7/7) plug at one end and three insulated spa…
The QC3.0 Power Supply Set (US) is a USB wall adapter with an input value of AC100-240V, and an output of 6V-6.5V/3A, 6.5V-9V…
This is the SMD version of [PRT-07948](http://www.sparkfun.com/products/7948), which is the unit we like to use as RTC backup…