Power & Batteries

SKU: AF-2164 | Brand: Adafruit

The classic L7805 linear voltage regulator in a TO-220 package, capable of delivering a clean, regulated 5.0 V output (±2%) from an input voltage of 7–35 V. With built-in current limiting and thermal shutdown protecti...

SKU: SF-PRT-12083 | Brand: SparkFun

This 4xAA battery holder puts a nice finishing touch on your battery powered project. This holder features a removable, sliding cover, which is secured with a small phillips head screw. Another bonus is the ON/OFF swi...

SKU: SF-PRT-11892 | Brand: SparkFun

Now for all of your coin cell battery surface mount needs, the 20mm SMD Coin Cell Holder. This holder fits our 20mm Lithium Ion coin cell battery and holds the battery in place with friction. The metal housing connect...

SKU: AF-2998 | Brand: Adafruit

Do you want your cup to runneth over with USB ports? Do you want it to also be filled with the sweet, sweet nectar of an on-off switch? If the answer to either of those questions is yes - or "I never really thought...

SKU: AF-727 | Brand: Adafruit

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

SKU: AF-658 | Brand: Adafruit

This 5V 10A Switching Power Supply delivers up to 50W of stable DC power, making it ideal for driving LED strips, motors, CNC projects, and other power-hungry 5V devices. It accepts both 110V and 220V AC input, so it ...

SKU: LB-LS4126 | Brand: Little Bird

A 4-slot smart charger for 18650 and other cylindrical Li-ion rechargeable batteries. Each slot operates independently, so you can charge batteries of different sizes and charge levels simultaneously. USB powered for ...

SKU: AF-6106 | Brand: Adafruit

The Adafruit bq25185 with 5V Boost is an all-in-one charging and power supply board that supports USB, DC, and solar charging with an integrated 5V boost converter. It is designed for projects that need a stable 5V su...

SKU: AF-5856 | Brand: Adafruit

A compact 5 V, 0.6 W solar panel from Voltaic Systems, built with ETFE (Ethylene Tetrafluoroethylene) construction for superior durability over standard PET or laminate panels. Featuring 10 high-efficiency monocrystal...

SKU: DF-DFR0969 | Brand: DFRobot

A dual-slot 18650 battery holder with built-in charging and regulated power outputs, perfect for powering microcontrollers, sensors, and portable electronics projects. Simply install two 18650 lithium batteries and us...

SKU: DF-FIT0814 | Brand: DFRobot

A compact, multi-function USB tester with a 1.44" TFT LCD colour display. It monitors voltage, current, power, capacity, charging protocol, and cable resistance in real time, with support for fast-charge protocol dete...

SKU: DF-FIT0610 | Brand: DFRobot

This enclosed battery holder takes 3× AA batteries in series, providing approximately 4.5V from alkaline cells or 3.6V from NiMH/NiCd rechargeables. It features a built-in on/off switch and a sliding, removable cover ...

SKU: AF-4193 | Brand: Adafruit

A slim 2×AA battery holder with a built-in on/off switch and genuine JST PH connector. Two AA batteries in series provide approximately 3V — ideal for powering low-voltage electronics projects, microcontrollers, and p...

SKU: DF-FIT0601 | Brand: DFRobot

A lightweight, flexible monocrystalline silicon solar panel with an integrated 5 V voltage regulator and USB Type-A output. The PET-laminated design weighs just 90 g and includes mounting holes and copper clasps for a...

SKU: AF-3785 | Brand: Adafruit

This isolated PoE splitter takes a unified Power over Ethernet signal from a single RJ-45 cable and separates it into data (Ethernet) and regulated 5V DC power via a Micro USB plug. It works with any 802.3af-capable r...

SKU: AF-1131 | Brand: Adafruit

A 500 mm extension cable with a JST-PH 2-pin socket on one end and a matching plug on the other. The colour-coded wires make it easy to verify correct polarity. Compatible with JST-PH terminated battery packs includin...

SKU: SF-PRT-10218 | Brand: SparkFun

A standard 9V alkaline battery (Rayovac). Suitable for powering Arduino boards, breadboard projects, and other electronics — use with a voltage regulator to get a stable 5V output. Key Features 9V Alkaline – Standa...

SKU: DF-FIT0056 | Brand: DFRobot

This is the most common A to B Male/Male type peripheral USB 2.0 cable for arduino.  It is compatible with most Arduino boardssuch as Arduino Mega, Romeo, Arduino Duemilanove. Often used for printers and other...

SKU: LB-LS7860 | Brand: Little Bird

A USB-C to Micro-USB cable for connecting Micro-USB development boards and devices to modern USB-C laptops and chargers. Ideal for programming boards like the micro:bit, Raspberry Pi Pico, Teensy 4.1, Circuit Playgrou...

SKU: AF-4217 | Brand: Adafruit

This round panel-mount extension cable adds a USB Micro-B port to your project enclosure without the need for custom-shaped cutouts. The 30 mm diameter adapter fits a standard round hole — drill it with a common hole ...