Power & Batteries

SKU: SF-COM-00107 | Brand: SparkFun

This is the basic L7805 voltage regulator, a three-terminal positive regulator with a 5V fixed output voltage. This fixed regulator provides a local regulation, internal current limiting, thermal shut-down control,...

SKU: TB-SB2300 | Brand: Little Bird

A 14500-size rechargeable lithium-ion battery with 800mAh capacity and 3.7V nominal voltage. The 14500 form factor is the same size as a standard AA battery, making it a common choice for LED torches and other compact...

SKU: DF-FIT0110 | Brand: DFRobot

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 ...

SKU: AF-2750 | Brand: Adafruit

Lithium ion polymer (also known as 'lipo' or 'lipoly') batteries are thin, light and powerful. The output ranges from 4.2V when completely charged to 3.7V. This battery has a capacity of 350mAh for a total of about...

SKU: SF-COM-00526 | Brand: SparkFun

The LD1117V33 is a low-dropout (LDO) positive voltage regulator with a fixed 3.3V output. With on-chip trimming providing ±1% output voltage tolerance and built-in current and thermal limiting, it's a reliable choice ...

SKU: AF-4299 | Brand: Adafruit

A compact adapter that converts a Micro-B USB cable to a USB-C plug. Simply attach it to the end of an existing Micro-B cable to connect to USB-C devices — no new cable required. Key Features Micro-B Socket to USB-...

SKU: DF-FIT0266 | Brand: DFRobot

A 6×AA battery holder with bare wire leads for creating 7.2V rechargeable battery packs (NiMH/NiCd) or 9V packs from alkaline cells. The holder features side-by-side cell placement and comes with 150mm red and black w...

SKU: AF-354 | Brand: Adafruit

Need a big battery for your project? This lithium ion pack is made of 2 balanced 2200mAh cells for a total of 4400mA capacity! The cells are connected in parallel and spot-welded to a protection circuit that provid...

SKU: AF-830 | Brand: Adafruit

A 4×AA battery holder with a snap-on cover and built-in on/off switch. Holds four AA batteries in series, outputting a nominal 6V (alkaline) or 4.8V (NiMH), making it a convenient portable power source for 5V microcon...

SKU: KS-KS0576 | Brand: Keyestudio

Introducing the Smart Eco-Friendly House Starter Kit for Arduino, the perfect way to learn about automated and intelligent management while also promoting eco-friendliness. This kit utilizes multiple sensors and modul...

SKU: SF-CAB-13243 | Brand: SparkFun

This is a USB 2.0 type B to Mini-B 5-pin black cable. You know, the mini-B connector that usually comes with USB Hubs, Cameras, MP3 players, etc. We specifically like these 6" long cables because using USB peripherals...

SKU: AF-1904 | Brand: Adafruit

The Adafruit Micro Lipo with MicroUSB Jack is a compact charger for single-cell 3.7V/4.2V lithium polymer and lithium ion rechargeable batteries. Plug in any Micro USB cable to a USB power source and connect your batt...

SKU: DF-DFR0876 | Brand: DFRobot

The Raspberry Pi PoE+ HAT adds Power over Ethernet capabilities to your Raspberry Pi 3B+ or 4B, allowing you to power and connect your Pi to the network using a single Ethernet cable. This eliminates the need for a se...

SKU: SF-PRT-21870 | Brand: SparkFun

A simple plug and play USB C to A converter (and vice-versa). This allows you to run devices and cables with the classic USB Type A connector off a device or adapter with a USB Type C port. It features up to USB 3.1 s...

SKU: DF-FIT0151 | Brand: DFRobot

A screw-terminal adapter that converts a 5.5 × 2.1 mm centre-positive DC barrel jack connection to bare wire terminals. Plug in a barrel jack power supply on one end and connect the screw terminals to a breadboard, ci...

SKU: SF-PRT-10811 | Brand: SparkFun

This DC power jack/connector is just like the other one that we carry except that it’s terminated with breadboard-friendly pins instead of wide solder terminals. These are also compatible with our DC wall supplies and...

SKU: SF-PRT-10288 | 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 female barrel jack. If you have a power supply with a barrel jack an...

SKU: AF-5449 | Brand: Adafruit

A USB Type-C Power Delivery (PD) cable that converts any PD-capable USB-C power adapter into a 9V DC barrel jack output at up to 5A. The built-in PD sink negotiation chip communicates with your adapter to request 9V o...

SKU: SF-CAB-19717 | Brand: SparkFun

A USB-C to USB-C cable with a built-in LCD display that shows real-time power draw — so you can see exactly how much power your device is pulling. Supports up to 100W USB PD (Power Delivery) at 5A, with USB 2.0 data t...

SKU: DF-DFR0884 | Brand: DFRobot

This dual-USB step-down buck converter accepts 8–32V DC input and delivers a regulated 5V output at up to 3A across two USB Type-A ports simultaneously. With over 85% conversion efficiency and built-in reverse-connect...