Switching modular power supply for LED Akyga, supply voltage 100-265V, output voltage 12V, IP67 enclosure tightness class. Akyga AK-L2-025

The compact (0.4″ × 0.5″) D24V5F6 synchronous buck voltage regulator takes an input voltage of up to 36 V and efficiently reduces it to 6 V while allowing for a maximum output current of 500 mA. Pololu 2844

Solar energy management module dedicated to LiPo 3.7V batteries. It can work with photovoltaic cells with a voltage from 1 to 3 V. The set includes a 2 V 160 mA solar panel. DFRobot DFR0579

Li-Po battery with a rated voltage of 3.7 V and a capacity of 1100 mAh, equipped with a PCM protection and a 2.5 JST-RCY connector. Akyga LP623255

This compact (0.4″ × 0.5″) switching step-down (or buck) voltage regulator takes input voltages up to 50 V and efficiently reduces them to 9 V while allowing for a maximum output current of 600 mA. It has a very low dropout, so it can be used with input voltages that are within a few hundred millivolts of its output.

Switching modular power supply for LED, supply voltage 100-265V, output voltage 12V, IP67 enclosure tightness class. Akyga AK-L2-100

LiPo 3.7 V battery charger module with a microUSB socket. DFRobot DFR0667

Step-Up/Step-Down converter module based on the S13V15F5 system. It has an input voltage from 2.8 to 22 V and an output voltage of 5 V. The current efficiency of the converter is up to 2 A. Pololu 4084

The shunt regulator with a constant voltage of 26.4V, bypass resistance 4Ohm and a total of 12 SMT shunt resistors on both sides of the PCB with the possibility of adding an external potentiometer to adjust the preset voltage. Pololu 3774

The Akyga Basic series power supply is one of the basic power supplies designed for powering desktops. Compliant with ATX 2.31 standard, 500W power. Akyga AK-B1-500

Li-Po battery with a rated voltage of 3.7 V and a capacity of 1850 mAh, equipped with a PCM protection and a 2.5 JST-RCY connector. Akyga LP704452

Li-Po battery with a rated voltage of 3.7 V and a capacity of 620 mAh, equipped with a PCM protection and a 2.5 JST-RCY connector. Akyga LP852040

Li-Po battery with a rated voltage of 3.7 V and a capacity of 800 mAh, equipped with a PCM protection and a 2.5 JST-RCY connector. Akyga LP503448

Shunt regulator with a constant voltage of 13.2V, bypass resistance 1.5Ohm and a total of 32 SMT bypass resistors on both sides of the PCB with the possibility of adding an external potentiometer to adjust the preset voltage. Pololu 3771

Single-purpose LiPo charger module based on the ETA9740 chip. It has an integrated power management circuit with 5V and 2.4A output. Seeed Studio 106990290 

Extension module with Li-Ion and LiPo charger dedicated to QT Py boards. It allows you to charge the batteries with a current of up to 200 mA. Adafruit 5397

Power supply dedicated to the Build HAT module for the Raspberry Pi. It has an output voltage of 8 V and a DC 5.5 x 2.1 mm connector. Raspberry Pi SC0748

Step-Up converter U3V70F6 with an output voltage of 6 V, an input voltage from 2.9 to 6 V and a maximum output current of 10 A. Pololu 2892

Power supply module with an input voltage from 4 to 9 V and a configurable output voltage of 3.3 V or 1.8 V. It has holes with a 2.54 mm pitch. Perfect for use with a contact plate. SparkFun PRT-13157