DC-DC Step-Up converter U3V40F5 with an output voltage of 5 V, an input voltage of 1.3 to 5 V and a maximum output current of 4 A. Pololu 4012

DC-DC Step-Up converter U3V40F12 with an output voltage of 12 V, an input voltage of 1.3 to 12 V and a maximum output current of 4 A. Pololu 4016

DC voltage converter with adjustable and stabilised output voltage from 0.5 V to 32 V. It can handle loads up to 3 A and has an output of up to 35 W. It features a colour display and a handy user interface. Fnirsi DC/DC converter 35W

The classic grounded splitter has two round sockets with a grounding pin and a maximum load of 16A. Vorel-72404

DC-DC Step-Up / Step-Down converter module. It has an input voltage of 6 to 35 V and an output voltage of 1 to 33 V. The current efficiency of the inverter is 0.05 to 5 A. DFRobot DFR0946

The Akyga AKY1108 CR2032 HP2C lithium battery with a voltage of 3V and a capacity of 210 mAh features 2-pin terminals with a 17.8 mm pitch, enabling easy installation in electronic devices. Utilizing Li-MnO₂ technology, it provides stable power supply and long lifespan, making it ideal for applications such as real-time clocks, controllers, and memory modules.

A power supply based on a DC-DC converter with a current capacity of up to 4 A. The input voltage can range from 5 V to 30 V, while the output voltage is adjustable from 0.5 V to 30 V. ZK-4KX

Switching power supply with a power of 20 W, an output voltage of 3.3 V and a current of 6 A. It has built-in protection against overload and short circuit. Mean Well RS-25-3.3

Panasonic AAA 1.5V LR3 Alkaline Battery is a reliable power source, perfect for everyday devices such as remote controls, toys, and flashlights. With high-quality construction, it ensures long-lasting and stable performance for various electronic devices.

DFRobot DFR0205 is a compact and efficient step-down DC-DC converter module with up to 25 W of power, allowing adjustment of the supply voltage to meet the needs of various electronic components. With a voltage regulation function, a quick 5 V selection switch, and an Ovout interface, it enables simultaneous power delivery to components with different voltage requirements. Ideal for prototyping, mobile projects, automation systems, and IoT applications.

Panasonic AA 1.5V LR6 Alkaline Battery is a reliable power source, ideal for everyday devices such as remote controls, toys, and flashlights. With high-quality construction, it ensures long-lasting and stable performance for various electronic devices.

Switching power supply with a power of 15 W, an output voltage of 5 V and a current of 3 A. It has built-in protection against overload, overheating and short circuit. Mean Well RS-15-5

BLOW SUPER HEAVY DUTY AAA R03P Battery is an economical zinc-carbon cell with a 1.5V voltage, designed for low-power devices such as clocks, calculators, and remote controls. The package contains 40 batteries, ensuring long-lasting power supply for multiple devices.

Switching power supply with a power of 15 W, an output voltage of 12 V and a current of 1.3 A. It has built-in protection against overload, overheating and short circuit. Mean Well RS-15-12

The 9V zinc-carbon battery (6F22) by Maxell is an economical power source, ideal for low-energy devices such as wall clocks and remotes. It provides stable voltage and reliable performance in basic applications.

Maintenance-free 6 V 1.3 Ah gel battery using AGM technology, measuring 97 x 53 x 24 mm, designed for backup power systems, UPS units, alarm systems, and other applications requiring a stable power source

Powerbank with solar charging function. It has a built-in photovoltaic cell, a lithium-polymer battery with a capacity of 5000mAh, two USB outputs and a white diode, acting as a flashlight. The side walls of the powerbank are made of rubber.

Step Down converter module with an output voltage of 5 V and a maximum current of 2x2,5 A. The board is equipped with four USB connectors

MPPT charge controller module for photovoltaic systems. It supports battery charging with 12V and 3A current, it can charge Lead Acid batteries.

The 6 AA R6 battery holder is a basic but essential item for those who need a simple way to connect batteries for higher voltage. Cable length 15 cm