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This 2xAA battery holder puts a nice finishing touch on your battery powered project. This holder features a removable, slidi…
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…
The 1.2 Watt Volt small solar panel from Voltaic Systems is a lightweight, waterproof, small solar panel designed for 5-7 yea…
This is a breakout board for our non-isolated, [6A DC-to-DC Converter Module](http://www.sparkfun.com/commerce/product_info.p…
This is an incredibly simple one cell 18650 Battery Holder. When someone thinks of 18650 Cells they tend to think of flashlig…
These are your standard 1.5V AA alkaline batteries from Panasonic.
2500mAh 1.2V Nickel Metal Hydride rechargeable 'AA' batteries. [NiMH technology](http://en.wikipedia.org/wiki/Nickel_metal_hy…
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…
This is an incredibly simple two cell 18650 Battery Holder. When someone thinks of 18650 Cells they tend to think of flashlig…
The MI:power board adds portability to your project. A buzzer and 3V coin cell holder is connected to the 3V, GND and P0 conn…
CR1225 lithium metal 3V 12mm 47mAh coin cell batteries. Perfect small battery for miniature sensor node applications. Thes…
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 barrel jack plug is great for adding a common connector to the end of our wires. This jack is compatible with 5.5mm barr…
The ATX power connector breaks out the standard 4-pin computer peripheral port for you 12V & 5V devices from one wall adapter…
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 3xAA battery holder with JST connector puts a nice finishing touch on your battery powered project.
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 a simple coin cell battery holder that can enclose two CR2032 batteries inside itself, and safely kept closed via two…
Basic 20mm coin cell holder. Posts can be inserted into 0.1" perf board! Holds the common CR2032 type batteries.
This is a USB Type-C Power Supply that is compatible with the Raspberry Pi 4.
The BPW34 is a tiny, general purpose [PiN photodiode](http://en.wikipedia.org/wiki/PIN_diode). This photodiode has a ton of u…
This is a handy little device that can save your system from smoking. A resettable fuse (also known as a [PTC](http://en.wiki…
Now for all of your coin cell battery surface mount needs, the 20mm SMD Coin Cell Holder. This holder fits our 20mm Lithium I…
Our RedBoards are great. But don't they sometimes seem a little **_BIG_**?! Enter **smôl**, a new range of boards which a…
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…
The KR Sense 90A is a small voltage and current sense breakout board.
The SparkFun Power Supply Sample Kit provides you with a sampling of the power supplies that we offer to power your next proj…
The 4-Bay T4s Intelligent Universal Charger from Tenergy is an automatic smart charger compatible with almost all types of re…
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 a right-angle, 24-pin Molex Mini-Fit Jr.™ connector, commonly used as the power supply connector on [ATX](http://en…
This 3xAA battery holder with bare wire leads 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…
Use this high-strength acrylic gasket to attach the 1.2W panels from Voltaic Systems to an enclosure.
This is the LM317TG voltage regulator, a three-terminal positive regulator with a 1.2V to 37V adjustable output voltage. This…
This is a simple 48W (8V DC, 6A) power supply, designed for use with the Raspberry Pi Build HAT.
These are massive single pole - double throw (SPDT) sealed relays. This means that when current is applied to the coil it thr…
This USB AC to DC power supply will do 5V at 2A!
This is the basic L7812 voltage regulator, a three-terminal positive regulator with a 12V fixed output voltage. This fixed re…
This is the CR2025 20mm coin cell battery. You may be wondering what sets this guy apart from the more common CR2032 coin cel…
The Elektor DIY LiPo Supercharger can charge a single-cell LiPo battery and protect it against the effects of overvoltage, ov…
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…
These are your standard 1.5V AAA alkaline batteries from Energizer.
This is a glass ferrule type fuse. It fits great with our 5mm fuse clips. The fuse is rated for 250VAC, up to 500mA. Fuses ar…
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…
These are your standard 1.5V AAA alkaline batteries from Rayovac. Don't even think about trying to recharge these. Roughly 75…
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…
This isn't your ordinary power supply. The Global Power Supply is a 15V, 4.34A power device specifically designed to work wit…
