Power Management

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: AF-737 | Brand: Adafruit

This power distribution bus is machined from a single piece of solid brass, providing a reliable way to distribute power across multiple wires in a project. Seven screw-terminal holes accept wires of 20 AWG or larger ...

SKU: AF-6091 | Brand: Adafruit

The Adafruit bq25185 Charger is a versatile LiPo/LiIon/LiFePO4 charging board that supports USB, DC, and solar power input. It is an excellent upgrade from MCP73833 or MCP73831-based chargers, offering multi-chemistry...

SKU: DF-KIT0197 | Brand: DFRobot

Harnessing the abundant sources of energy in the natural environment, such as mechanical, thermal, solar, and radio frequency energy, can provide a continuous flow of power to devices. The DFM8001 Ambient Energy Harve...

SKU: AF-5705 | Brand: Adafruit

Witty Pi is an add-on board that adds real time clock and power management to your Raspberry Pi. It can define your Raspberry Pi’s ON/OFF sequence and significantly reduce energy use. Witty Pi 4 L3V7 is the new member...

SKU: DF-FIT0844 | Brand: DFRobot

This PTC (Positive Temperature Coefficient) Heating Element is a self-regulating thermostatic ceramic heater that automatically maintains a constant surface temperature without external temperature controllers or sens...

SKU: AF-4920 | Brand: Adafruit

This little buck converter based on the TPS62827 is super handy, taking up to 5.5V input and providing a 3.3V output with up to 2A current. It's great for supplying power to hungry 3.3V voltage circuits from a range o...

SKU: AF-4226 | Brand: Adafruit

The Adafruit INA260 is a precision DC power sensor that measures current, voltage, and power on either the high or low side of your circuit. With an integrated 2 mΩ (0.002Ω) 0.1% shunt resistor and 16-bit ADC, it hand...

SKU: LB-LR0309-16 | Brand: Little Bird

A flat 4×AA battery holder with a 2.1mm DC barrel jack connector, providing an easy way to power Arduino boards and other projects that accept a DC barrel plug. With four alkaline AA batteries installed, it delivers a...

SKU: DF-FIT0079 | Brand: DFRobot

A simple 4-cell AA battery holder in a square (2×2) configuration. Features 5-inch tinned leads for easy soldering into your project. Provides 6V nominal output with four AA alkaline batteries, or 4.8V with rechargeab...

SKU: AF-1863 | Brand: Adafruit

This switched JST connector is the best way to quickly prototype with our LiPoly batteries. We paired a genuine JST connector with a slide switch that can do up to 600mA. Both are soldered onto a breadboard-friendl...

SKU: DF-FIT0043 | Brand: DFRobot

The second version of the 9V to Barrel Jack Adapter, now featuring a hard plastic battery snap for easier connection and disconnection. Plug a 9V battery into one end and connect the other to any device with a 5.5 × 2...

SKU: AF-184 | Brand: Adafruit

Build your own breadboard-friendly adjustable power supply with this soldering kit. Based on the MIC2941 low-dropout regulator, it provides a guaranteed 1.25A output with only 40–400 mV dropout — far better than the L...

SKU: SF-PRT-10891 | Brand: SparkFun

This 3xAA 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: LB-LS4126-LS1558 | Brand: Little Bird

FeaturesIndependent Charging: Each of the four slots operates independently, allowing simultaneous charging of different battery sizes or charge levels.LED Indicator Lights: Red – Charging Green – Fully Charged S...

SKU: LB-3000MAH | Brand: Little Bird

Stay charged anywhere with our compact 3000mAh Micro:bit Charger.Unlike many power banks that shut down with low power draw, this one stays on even when your Micro:bit uses minimal power.Includes a USB-C cable for cha...

SKU: LB-LS3337 | Brand: Little Bird

An enclosed battery holder for three AAA cells with a built-in on/off switch. The snap-on lid fully covers the batteries, keeping them secure during use. Wire leads allow you to connect directly to your project. Thre...

SKU: DF-DFR0580 | Brand: DFRobot

The DFRobot Solar Power Manager series are designed for IoT projects and renewable energy projects, providing safe and high-efficiency embedded solar power management modules for makers and application engineers. This...

SKU: AF-4711 | Brand: Adafruit

The AP3429A Buck Converter Breakout steps down 3.4–5.5V input to a stable 3.3V output at up to 1.2A, with 90–95% efficiency. It's ideal for powering 3.3V circuits from LiPo batteries, 3× alkaline cells, or USB power s...