Power & Batteries

SKU: AF-1870 | Brand: Adafruit

A simple sewable breakout board with a CR2032 coin cell battery holder pre-soldered on and 0.1" pitch breakout pins for easy connection. Ideal for powering very low-current projects or adding a battery backup circuit ...

SKU: AF-2124 | Brand: Adafruit

The Adafruit Pro Trinket LiIon/LiPoly Backpack is a tiny add-on board that sits on top of your Pro Trinket or ItsyBitsy, adding rechargeable LiPo battery support with automatic charging and power switching. When USB i...

SKU: PL-2833 | Brand: Pololu

The compact (0.5″ × 0.7″) D24V10F9 synchronous buck voltage regulator takes an input voltage of up to 36 V and efficiently reduces it to 9 V while allowing for a maximum output current of 1 A....

SKU: DF-DFR0446 | Brand: DFRobot

In many applications, we will use lithium batteries as our power solutions. In this kind of application, the most two important things are the power boost and battery charger. These two points are a prerequisite for ...

SKU: DF-FIT0114 | Brand: DFRobot

This female to male DC power cable offers an easy solution for extending the length of a DC power supply. SPECIFICATIONS 2.1mm (0.08'') connector size High quality plug and jack with strain relie...

SKU: AF-2789 | Brand: Adafruit

The premise of this MicroUSB to 5.5/2.1mm DC Barrel Jack Adapter is simple. There's a MicroUSB plug on one end and a 5.5mm/2.1mm DC barrel jack with center positive polarity on the other. This allows you ...

SKU: AF-2777 | Brand: Adafruit

This USB to DC booster cable has an integrated boost converter that steps up 5V USB power to 9V DC, output through a centre-positive 2.1 mm barrel jack. It's a convenient way to power 9V devices from any USB port — wh...

SKU: SF-COM-00746 | Brand: SparkFun

A 10 F (farad) supercapacitor rated at 2.5 V. This compact energy storage device can be charged and slowly discharged to power low-current systems for extended periods. Two can be connected in series for 5 F at 5 V. ...

SKU: DF-FIT0253 | Brand: DFRobot

A 7.5 V DC wall adapter power supply with a DC 2.1 mm barrel connector, compatible with the Arduino power jack. The 7.5 V output is well suited for Arduino projects that need more than 5 V but where 12 V may be excess...

SKU: DF-DFR0250 | Brand: DFRobot

A boost converter module that takes two AA batteries and outputs a stable 5 V supply for your circuits. Built around the TI TPS61032 boost chip, it accepts input voltages from 1.8–4.5 V and delivers up to 5 V @ 1 A — ...

SKU: SF-BOB-11771 | Brand: SparkFun

This is a breakout board for the Texas Instruments TXB0104 module. The TXB0104 is a 4-bit bidirectional voltage-level translator with automatic direction sensing. This 4-bit noninverting translator uses two separate...

SKU: PL-2172 | Brand: Pololu

This style of high-current connector is commonly used with the 7.2V sub-C battery packs that power many RC cars. The connector is keyed so that power cannot be reversed, and a latch secures the connection so that it ...

SKU: AF-248 | Brand: Adafruit

A 6×AA battery holder with a 5.5mm/2.1mm DC barrel plug, ready to power Arduino boards and other electronics with a standard DC jack. Use alkaline AAs for approximately 9V at 3000–4000mAh, or rechargeable NiMH cells f...

SKU: SF-CAB-11301 | Brand: SparkFun

A 6-foot (1.8 m) USB 2.0 cable with a Type-A plug on one end and a Mini-B 5-pin plug on the other. Use it to connect cameras, USB hubs, FTDI programmers, LiPo chargers, and other devices that use the Mini-B connector....

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: AF-411 | Brand: Adafruit

A small adapter that converts a standard 5.5 / 2.1 mm DC barrel plug into a 4.0 / 1.7 mm plug, letting you use common 2.1 mm wall adapters with devices that have a smaller 1.7 mm DC jack input. Key Features 2.1 mm ...

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...