Step-down DC-DC converter module that converts a 12 V or 11.1 V output voltage (e.g. from a lithium battery) to a voltage in the range of 1.8 V to 5.1 V. It has a power output of up to 60 W, and with an output current of up to 18 A, the module can be used to power a 5 m WS2812 RGB LED strip. DFRobot DFR1025

The Step Down DC-DC converter module (MP2307) allows to obtain 0.93..18V output voltage at 4.75..24V input voltage. The output voltage is regulated by a potentiometer

Solar energy management module designed for solar panels with a voltage of 6 V to 24 V. It uses a USB Type C connector and can supply current from a voltage of 5 V and a current of 3 A. Perfect for charging 3.7 V batteries. Waveshare Solar Power Manager (D )

Switching power supply with 35 W, 24 V output voltage and 1.5 A current. It has built-in overload and short-circuit protection and a low profile housing. Mean Well LRS-35-24

Step-Down converter D36V50F12 with an output voltage of 12 V, an input voltage from 13.3 to 50 V and a maximum output current of 6.5 A. Pololu 4095

Step-Down converter with an output voltage of 5 V, input voltage from 9 to 36 V and a maximum current of 5 A. The board is equipped with a DC input connector and an output USB connector

A tester for 1.5V and 9V batteries, which does not require a power supply, allows a simple assessment of the battery condition by touching the poles with the metal terminals, with the measurement results under load indicating green (GOOD), yellow (LOW) and red (REPLACE, RECHARGE) fields, compact and easy to store. Sthor-81700

Step-Down converter D36V28F3 with an output voltage of 3.3 V, an input voltage from 4.5 to 50 V and a maximum output current of 4.5 A. Pololu 3781

The Verbatim Universal Travel Adapter can be used in over 180 countries - take it with you and you\'ll never run out of power. This global-to-global plug adapter allows devices to be connected to any local power source anywhere in the world. Thanks to it, you can safely charge your devices that require power, such as laptops and camera batteries. Two USB-A ports at the bottom allow you to charge all your USB devices, including smartphones, Bluetooth speakers, tablets, power banks and e-readers.

Kit containing the Panasonic Eneloop BQ-CC55 charger and 4 Panasonic Eneloop R6/AA rechargeable batteries with 2000 mAh capacity. Panasonic K-KJ55MCC40E

Power multiplexer based on Texas Instruments TPS2113A. It enables smooth switching between two power sources from 2.8 V to 5.5 V. Pololu 2596

Flexible solar panel with an output voltage of 6 V and a current capacity of 1 A. It has dimensions of 280 x 155 mm and a USB port

The Verbatim Universal Travel Adapter is a reliable charging device that connects to power sources worldwide, supported in over 180 countries. Equipped with USB-C and USB-A ports, it allows you to charge a variety of devices, including smartphones, tablets, Bluetooth speakers, power banks, e-book readers and devices that require direct power, such as laptops and camera batteries. Verbatim 49544

Uninterruptible power supply (UPS) module allowing continued operation and safe shutdown after a power failure. It provides an output voltage of 5 V and allows the reading of battery operating parameters via the I2C bus. Waveshare UPS Module Mini

Kit containing the Panasonic Eneloop BQ-CC55 charger and 4 Panasonic Eneloop Pro R6/AA rechargeable batteries with 2500 mAh capacity. Panasonic K-KJ55HCD40E

GP 11A alkaline battery with a voltage of 6V. GP 11A

Charger for electric vehicles (e-bikes, electric scooters) with an output voltage of 42 V and a current of up to 2 A. Akyga AK-EV-10

Power supply module with an input voltage from 6 to 12 V and a configurable output voltage of 3.3 V or 5 V. It has holes with a 2.54 mm pitch. Perfect for use with a breadboard. SparkFun PRT-13032

Power strip that allows you to connect and power 3 devices using French CEE 7/5 sockets. Lanberg PS0-03E-0150-W