Power & Batteries

SKU: SF-PRT-11214 | Brand: SparkFun

MOSFETs are awesome. They’re like a switch that you flip electronically! This SparkFun MOSFET Power Controller makes it easy to switch a battery supply on and off using your favorite microcontroller. The board also ha...

SKU: TB-MP3147 | Brand: Little Bird

This ultra-slim switchmode plug pack delivers 12V DC at 400 mA (4.8W) from a standard Australian/NZ mains outlet. Its slim profile allows multiple adaptors to sit side by side on a power board without blocking adjacen...

SKU: SF-ROB-13065 | Brand: SparkFun

This is a 12 wire slip ring, a remarkably simple electromechanical assembly that allows electronic signals to be passed through its rotating innards. Commonly, you’d find slip rings in wind turbines, radar antennae, o...

SKU: AF-3238 | Brand: Adafruit

This IEEE 802.3af PoE splitter separates power and data from a single PoE Ethernet cable, providing regulated 12VDC at up to 1A on a standard 2.1 mm DC barrel jack alongside a standard Ethernet data connection. It let...

SKU: DF-DFR0362 | Brand: DFRobot

Wireless charging uses an electromagnetic field to transfer energy between two objects. This is usually done with a charging station. Energy is sent through an inductive coupling to an electrical device, which c...

SKU: AF-3310 | Brand: Adafruit

A 5.5×2.1mm DC barrel connector plug for adding a standard power connector to the end of your own wires. The outer shell unscrews to reveal solder terminals and a crimp strain relief, making it easy to wire up custom ...

SKU: AF-3286 | Brand: Adafruit

A slim 3×AAA battery holder with a built-in on/off switch, JST 2-pin connector, and an ergonomic belt clip. The series configuration outputs approximately 3.6–4.5V — a similar range to lithium-ion batteries — making i...

SKU: AF-3287 | Brand: Adafruit

A compact 3×AA battery holder with a built-in on/off switch, JST 2-pin connector, and an ergonomic belt clip. The series configuration outputs approximately 3.6–4.5V — a similar range to lithium-ion batteries — making...

SKU: SF-PRT-10592 | Brand: SparkFun

This is the SMD version of PRT-07948, which is the unit we like to use as RTC backup and SRAM backup for GPS units. Holds battery in place with friction. The metal housing connects to the positive side of the batte...

SKU: SF-PRT-10512 | Brand: SparkFun

A snap-in 9V battery holder with a 5.5mm/2.1mm centre-positive barrel jack connector. The battery clicks securely into place, and three mounting holes allow you to attach the holder to an enclosure or chassis. Key Fe...

SKU: AF-574 | Brand: Adafruit

Put a current meter anywhere with this very handy display. This panel meter requires a DC voltage to run, and then has two thick gauge wires to measure current draw. A shunt is already on board so its very easy to hoo...

SKU: SF-COM-12766 | Brand: SparkFun

The L7812 is a three-terminal positive voltage regulator with a fixed 12V output. It provides stable local regulation with built-in protection against overcurrent, thermal overload, and short circuits, making it a rel...

SKU: SF-PRT-10287 | Brand: SparkFun

This adapter allows you to connect a barrel jack connector to bare wires. One end has screw terminals and the other has a 5.5x2.1mm, center-positive male barrel jack. If you need to connect bare wires to a barrel jack...

SKU: SF-PRT-10255 | Brand: SparkFun

The LiPower board is based on the incredibly versatile TPS61200 boost converter. The board is configured to be used with a LiPo battery, has solder jumper selectable 5V and 3.3V output, and an under voltage protection...

SKU: SF-PRT-12711 | Brand: SparkFun

The SparkFun USB LiPoly Charger is a single-cell Li-Ion/Li-Polymer battery charging board based on the MCP73831T. It charges 3.7V LiPo cells at a selectable rate of 500 mA or 100 mA via a solder jumper, with power inp...

SKU: SF-PRT-10217 | Brand: SparkFun

If you need to charge LiPo batteries, this simple charger will do just that, and do it fast! The SparkFun LiPo Charger Basic is stripped down of all features and just does one thing well - charge 3.7V LiPo cells ...

SKU: AF-3428 | Brand: Adafruit

A voltage detector is handy for projects where you want to make sure your microcontroller doesn't run at a low voltage. For example, say you have a Feather Huzzah running on a lipoly battery every few minutes. Even...

SKU: AF-1901 | Brand: Adafruit

A Qi-compatible wireless charging receiver module that outputs regulated 5 V at up to 500 mA. Place this module on any standard Qi charging base to receive power wirelessly — ideal for adding wireless recharging capab...

SKU: DF-FIT0479 | Brand: DFRobot

This USB 2.0 cable has a USB to microUSB connection. The USB connector is double sided so it can be connected in either orientation and includes an etched LattePanda logo. Each connector has super antioxidant...

SKU: AF-770 | Brand: Adafruit

Keep your power source safe and toasty in these waterproof 2xAA battery holders. They're just like classic switched battery holders, but designed for survival! The case has a rubber gasket around the edge of the ca...