Power Management

SKU: DF-DFR0564 | Brand: DFRobot

Still using a big, bulky, traditional power adapter to charge your lithium battery? DFRobot provides you with a compact and efficient 7.4V lithium battery USB charger, only the size and weight of an ordinary Gravit...

SKU: DF-DFR0753 | Brand: DFRobot

This 40W high power DC-DC Buck converter offers a 6~14V input voltage range and up to 5V/8A output. Featuring a small body, high conversion ratio, strong heat dissipation, and large current output, the module is compa...

SKU: AF-4410 | Brand: Adafruit

The Adafruit Micro-Lipo Charger is a tiny, easy-to-use charger for single-cell 3.7V/4.2V lithium polymer and lithium ion rechargeable batteries. Simply plug a USB-C cable into any USB power source and connect your bat...

SKU: DF-DFR0457 | Brand: DFRobot

In most Arduino projects, relays are the first choice to drive some large current device. It requires a certain amount of current to drive the internal coil to pick-up contact. But for some MCU, like Intel Edison,...

SKU: DF-FIT0080 | Brand: DFRobot

A 4-cell AA battery holder in a square (2×2) configuration with a sliding removable cover and a built-in ON/OFF switch. Features 5-inch tinned leads for easy soldering. The cover keeps batteries secure, and the switch...

SKU: LB-LS5508 | Brand: Little Bird

A 2×AA battery holder with a protective cover, built-in on/off switch, and large alligator clip leads. The alligator clips make it easy to connect to circuits, components, and conductive materials without soldering — ...

SKU: DF-DFR0831 | Brand: DFRobot

INTRODUCTIONThis is a 20W DC-DC buck converter power module with 7~24V input and 5V/4A output(Max). The high conversion efficiency and on-board 6 output ports make it suitable for connecting multiple devices like, lar...

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-DFR0668 | Brand: DFRobot

This is a Type-C  Lipo charger designed for single-cell 3.7V lithium battery. The compact size makes it easy to integrate into your applications. The charger adopts TP4056X lithium battery charging IC, which guar...

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: DF-DFR0205 | Brand: DFRobot

This Power Module is a small size 5A 350KHz 25V Buck DC to DC Converter. It can convert any DC voltage between 3.6V-25V to a selectable voltage from 3.3V to 25V. You can choose 5V direct output voltage with the conv...

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: AF-368 | Brand: Adafruit

A simple adapter that converts a 2.1 mm DC barrel jack to screw terminals, making it easy to connect a DC power supply to boards or projects that lack a DC jack. The terminals are labelled with positive and negative p...

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: 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-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-3435 | Brand: Adafruit

The Adafruit TPL5110 Low Power Timer Breakout turns any electronics project into a low-power system by periodically switching power on and off. Connect it between your power supply and your project, and the TPL5110 wi...

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...

SKU: AF-4755 | Brand: Adafruit

The Adafruit Universal USB/DC/Solar Lithium Ion/Polymer Charger (bq24074) charges 3.7V/4.2V LiPo or LiIon batteries from virtually any power source — USB Type-C, DC adapter, or solar panel — with a wide 5–10V input ra...