Alkaline button batteries marked as LR54, AG10, LR1130, L1131F are a reliable source of energy for devices requiring small but powerful batteries. Supplied in practical blisters of 10. They are easy to store and use, ensuring long-term and stable operation of the devices. They not only provide convenience, but also efficiency and reliability, making them a popular choice among office and home users. Vinnic L1131F

Pololu 5V Step-Up Voltage Regulator U3V12F5

The Step-UpU1V11A Buck Voltage Regulator module with adjustable output voltage 2-5.25V, input voltage range of 0.5-5.5V and a maximum output current of 1.2A. Pololu 2560

The compact (0.4″ × 0.5″) D24V5F9 synchronous buck voltage regulator takes an input voltage of up to 36 V and efficiently reduces it to 9 V while allowing for a maximum output current of 500 mA. Pololu 2845

Pololu 9V Step-Up Voltage Regulator U3V50F9

The Step-Up/Step-DownS7V8F5 Buck Voltage Regulator module with output voltage 5V, input voltage range of 2.7-11.8V and a maximum output current of 0.5-1A. Pololu 2123

Step-Up DC-DC converter module. It has an input voltage of 1.3 to 16 V, an output voltage of 9 V and a maximum input of up to 2 A. Pololu 4944

Adapter designed for electric car chargers. It allows you to transform the CEE 5-pin 400 V connector into the CEE 7/7 230 V / 16 A connector. Akyga AK-SC-E06

Verbatim\'s travel adapter converts multiple plugs to European for a secure, compact and snug fit. Verbatim 49541

PS_ZL_5V_2A DC5.5x2.1

This small synchronous switching step-down (or buck) regulator takes an input voltage of up to 38 V and efficiently reduces it to 9 V. The board measures only 0.7″ × 0.7″, but it allows a typical continuous output current of up to 2.5 A. Typical efficiencies of 85% to 95% make this regulator well suited for powering moderate loads like sensors or small motors.

Universal charger designed for 1-8S Li-Ion, LiPo, LiFe, LiHV, Pb and Ni-MH batteries. It has a built-in function of generating and measuring PWM, PPM and S.BUS signals. ToolkitRC M8P

Akyga AK-CH-20 100W USB-C USB-A PD GaN 5-20V / 1.5-5A wall charger white

Pololu 6V Step-Up Voltage Regulator U3V50F6

The compact (0.4″ × 0.5″) D24V5F15 synchronous buck voltage regulator takes an input voltage of up to 36 V and efficiently reduces it to 15 V while allowing for a maximum output current of 500 mA. Pololu 2847

Step-Up DC-DC converter module. It has an input voltage of 1.3 to 16 V, an output voltage of 12 V and a maximum input of up to 2 A. Pololu 4945

The compact (0.4″ × 0.5″) D24V5F1 synchronous buck voltage regulator takes input voltages between 3 V and 36 V and efficiently reduces them to 1.8 V while allowing for a maximum output current of 500 mA. This regulator offers typical efficiencies between 75% and 90%. The pins have a 0.1″ spacing, making this board compatible with standard solderless breadboards and perfboards.

Universal USB wall charger with 65W power and 5-20V / 3.25A output. It is equipped with two USB type A and two USB type C sockets, QC4 + fast charging and Power Delivery. Akyga AK-CH-17

MPPT charge controller module designed for photovoltaic systems. It can charge one lithium-polymer cell, and thanks to MTTP technology, optimal charging parameters are used for the prevailing conditions. SparkFun PRT-12885

The energy harvesting module based on the LTC3588 chip, which is a complete energy harvesting solution for sources such as piezoelectric, solar or magnetic transducers. SparkFun BOB-09946