Power & Batteries

SKU: AF-1466 | Brand: Adafruit

This UL-listed switching power supply delivers a clean, regulated 5V DC output at up to 4A (4,000mA / 20W) via a standard 5.5×2.1mm centre-positive DC barrel jack. It accepts 110–240V AC input and is ideal for powerin...

SKU: TB-MP3144 | Brand: Little Bird

An ultra-slim switchmode power adaptor that delivers 5V DC at 1A through a compact, lightweight design. Slim enough to sit side by side on a power board without blocking adjacent outlets. Features built-in EMI filter...

SKU: AF-2190 | Brand: Adafruit

The VERTER is a buck-boost DC-DC converter that accepts 3–12 V input and outputs a stable 5.2 V — ideal for powering Arduino, Raspberry Pi, and other 5 V electronics from a wide variety of battery packs. The slightly ...

SKU: AF-2200 | Brand: Adafruit

How good is your multimeter really?  Or maybe your analog converter needs a good reference? Or lets say you want to test your microcontroller's conversion accuracy & precision. If only you had a dependable, high ...

SKU: DF-DFR0105 | Brand: DFRobot

Most project of Arduino may need more than two voltage supply. When feed with from 4.5-35V, this arduino power shield able to provide a voltage range from 1.25-12V with 3A peak current. Ideal for servo control and ot...

SKU: DF-FIT0141 | Brand: DFRobot

A 6×AA battery holder with a DC 2.1mm power jack that plugs directly into an Arduino's barrel jack input. Creates a 7.2V rechargeable battery pack from NiMH/NiCd cells or a 9V pack from alkaline cells. Features mounti...

SKU: DF-FIT0168 | Brand: DFRobot

A waterproof DC-DC step-down converter that takes 11–35V DC input (compatible with 12V and 24V systems) and outputs a regulated 7.5V at up to 5A (38W). The sealed, shockproof enclosure and 96% efficiency make it well ...

SKU: DF-FIT0169 | Brand: DFRobot

A waterproof DC-DC step-down (buck) converter that accepts 16–36V DC input and outputs a stable 9V at up to 5A (45W). The sealed, shockproof enclosure and 96% efficiency make it well suited for robotics, vehicles, and...

SKU: SF-PRT-14299 | Brand: SparkFun

This is a unique two-cell AA battery holder built specifically for the BBC micro:bit. The 6" (~150mm) cable has been terminated with a JST-PH connector. The connector mates the JST socket on the micro:bit perfectly...

SKU: SF-CAB-14276 | Brand: SparkFun

USB On-The-Go (OTG) is a really useful USB specification! It allows some small devices that would normally be unable to act as a host to have limited hosting capabilities! USB OTG is common for things like tablet c...

SKU: AF-2745 | Brand: Adafruit

Your power supply problems just got SUPER SOLVED! This 3.3V Buck Converter Breakout board is great for supplying power to low voltage circuits from a single Li-Ion cell battery or USB power...

SKU: SF-PRT-14219 | Brand: SparkFun

A 2×AAA battery holder with a sliding cover and built-in ON/OFF switch. The cover keeps batteries secure, and the switch provides convenient power control for your project. Wire leads are approximately 150 mm long wit...

SKU: AF-2788 | Brand: Adafruit

A DC barrel jack adapter cable that converts a 3.5/1.3 mm or 3.8/1.1 mm DC plug to the standard 5.5/2.1 mm DC barrel jack format. Internal spring contacts accommodate outer diameters from 3.5 mm to 3.8 mm, making it v...

SKU: SF-COM-08357 | Brand: SparkFun

This is a handy little device that can save your system from smoking. A resettable fuse (also known as a PTC) is a resistor that has very unique properties.  For this model, if your circuit tries to draw more tha...

SKU: SF-DEV-11893 | Brand: SparkFun

The LilyPad Simple Power is a simple e-textile board that lets you connect and charge a lipo battery and switch it on or off, that’s it! We provide you with a JST connector and a slide switch, you supply the battery a...

SKU: DF-FIT0333 | Brand: DFRobot

A lightweight, thin, and truly flexible solar panel rated at 1.5V / 250mA (0.5W). Unlike rigid solar panels, this one can be bent, sewn, or adhered to curved surfaces, making it perfect for wearable electronics, porta...

SKU: PL-1185 | Brand: Pololu

The ACS714 Current Sensor Carrier provides a compact breakout for Allegro's ±5A ACS714 Hall effect-based linear current sensor. It offers a low-resistance (~1.2 mΩ) current path and electrical isolation up to 2.1 kV R...

SKU: AF-80 | Brand: Adafruit

A high-quality 9V battery clip with a pre-assembled 5.5mm/2.1mm centre-positive barrel connector. The moulded plastic clip covers the battery terminals to prevent short circuits, and the barrel plug connects directly ...

SKU: SF-CAB-11579 | Brand: SparkFun

Behold, the Hydra! This USB power cable probably looks a lot like something you’ve hacked together before. We do it all the time, because what is a computer if not a 5V power supply that happens to run software? T...

SKU: AF-3191 | Brand: Adafruit

The Adafruit Power Relay FeatherWing lets you switch high-power loads — lamps, fans, solenoids, small appliances, and more — directly from any Feather microcontroller board. With a switching capacity of up to 10A at 1...