Pololu 5V Step-Up/Step-Down Voltage Regulator S7V7F5

Universal charger with two charging sockets designed for Li-Ion, LiPo, LiFe, LiHV, Pb and Ni-MH batteries. It has a power of up to 700 W, which allows charging with a current of up to 25 A. It has a built-in power supply. ToolkitRC M6DAC

Ni-MH (nickel metal hydride) battery type AAA/R03 with a capacity of 1050 mAh. It uses low self-discharge (LSD) technology and has a durability of up to 1,200 charging cycles. everActive EVHRL03-1050

Lanberg 230V French flush-mounted socket with two USB ports allows you to charge mobile devices without additional chargers, provides protection against overvoltage and overload, made of resistant polyamide, perfect for home or office. Lanberg AC-WSo1-USB2-E-B

Monocrystalline Solar Panel is a monocrystalline solar panel with 5V output voltage and 1A current efficiency of 27.5 x 16 x 0.2cm. DFRobot FIT0601

The VARTA CR2016 lithium battery with a 3V voltage and 90 mAh capacity is a reliable power source for devices such as car remotes, calculators, and cameras. With compact dimensions (20 mm diameter, 1.6 mm height), it fits perfectly into small electronic devices.

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 BLOW SUPER HEAVY DUTY AAA (R03P) 1.5V zinc-carbon batteries are designed for low-power devices such as wall clocks, remote controls, and flashlights. Packed in sets of 4, they provide a cost-effective solution for basic energy needs.

The AG3 alkaline battery (also known as L736 or LR41) with a 1.5V voltage is a small power source, ideal for devices such as watches, calculators, and small toys. Its compact dimensions (approximately 7.9 mm in diameter and 3.6 mm in height) make it suitable for use in devices that require small batteries. The blister packaging typically contains several pieces, providing convenience and a longer-lasting supply.

Alkaline batteries in the popular standard are a versatile power source, ideal for many everyday devices. They are known for their long lifespan and reliable performance, making them a suitable choice for equipment that requires stable energy. The package contains multiple pieces, providing convenience and a supply for an extended period.

everActive AA NiMH rechargeable batteries with 2500 mAh capacity offer long-lasting, high-performance power for demanding applications, supplied in a 4-piece set.

3-AAA Battery Holder

The SLIM BLOW 12 V / 2 A / 24 W power supply is a compact and reliable power source for LED lighting systems. Its aluminum construction and built-in protection features against failures make it an ideal solution for home, office, and decorative installations. The small size allows for installation in hard-to-reach spaces, making it a versatile component for any LED setup.

BLOW SUPER ALKALINE AA (LR6) alkaline batteries are a reliable power source with a voltage of 1.5 V, ideal for devices such as cameras, portable CD players, shavers, remote controls, toys, flashlights, calculators, and clocks. The package contains 2 pieces, ensuring convenience and ease of use.

Pololu 2833

Step-down converter with adjustable output voltage 1.2V-35V and current efficiency 9A. The module allows to limit the current consumption at the output via a multi-turn potentiometer. modxl4016sd

DC-DC Buck Converter 5–36 V with 5 V or 3.3 V output in the DC5-36-TO-DC3V3-5-M version is equipped with terminal and pin headers for quick deployment in power applications. High efficiency, adjustable voltage, and compact size make it suitable for powering microcontrollers, communication modules, and embedded systems.

The REBEL RB-168D battery tester is a compact device for precise diagnostics of the charge level of the most commonly used battery types. Its digital voltage readout, lack of need for an external power source, and compatibility with both cylindrical and button cell batteries make it a practical tool for everyday use in both home and professional environments.

The Akyga® AKY1074 CR2025 lithium battery is a reliable power source for electronic devices with low power consumption. Thanks to its voltage stability, long lifespan, and resistance to changing weather conditions, it is an ideal solution for remote controls, clocks, calculators, and IoT devices, providing users with confidence and long-lasting performance.

Charger with LCD display designed for solar panels. It can work with 12 V and 24 V systems, has a 30 A output and two 2.5 A USB outputs. Designed for lead-acid batteries