12 V 4 A power supply Waveshare 30622 with a European mains plug and 5.5/2.1 mm DC output provides reliable power for electronics, automation, and robotics projects. The high output current allows support for more demanding devices, while compliance with international safety standards ensures safe operation in various applications.

The XTAR X4 is a four-channel automatic charger with deep discharge recovery and a three-phase charging algorithm, compatible with a wide range of Li-ion and Ni-MH battery sizes. With both AC and USB power options and a built-in power bank feature, it\'s ideal for both home and mobile use.

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

A programmable DC switching power supply with adjustable voltage from 0 to 30V and current up to 5A, designed for precision and portability. The device supports a wide input voltage range (5–32V) and power supply via USB-C PD, QC, power banks, and traditional DC power supplies, providing great flexibility in the field and workshop. Its compact housing, 2.8" color display, and numerous safety features make the DPS-150 a reliable tool for electronics and service technicians. Fnirsi DPS-150 Standard

The compact (0.4″ × 0.5″) D24V5F2 synchronous buck voltage regulator takes input voltages between 3 V and 36 V and efficiently reduces them to 2.5 V while allowing for a maximum output current of 500 mA. This regulator offers typical efficiencies between 80% and 90%. The pins have a 0.1″ spacing, making this board compatible with standard solderless breadboards and perfboards.

3-C Battery Holder

PSU-5V5A-5.5-2.1-EU is a stable 5 V / 5 A power supply with a European power plug, ideal for powering development boards, network modules, IoT devices, and other components requiring higher current capacity. Equipped with necessary protections and certifications, it provides safe power for both hobby and industrial applications.

Rechargeable NiMH Battery Pack: 7.2 V, 350 mAh, 3x2 2/3-AAA Cells, JR Connector

24 V 1 A power supply Waveshare 30342 with a European mains plug provides a reliable power source for devices with a 5.5/2.1 mm socket. Thanks to its compact design, low interference emission, and electrical protections, it is well-suited for electronics projects, measurement systems, and industrial automation.

This small synchronous switching step-down (or buck) regulator takes an input voltage of up to 36 V and efficiently reduces it to 7.5 V. The board measures only 0.7″ × 0.7″ yet delivers a typical continuous output current of up to 2.4 A and features reverse voltage protection.

The universal 3–12 V DC, 18 W power supply offers flexible power delivery for a wide range of electronic devices thanks to adjustable voltage and a set of 11 interchangeable tips. It supports the USB-C™ standard as well as classic DC and USB connectors, making it a versatile solution for both modern and older equipment. Its compact design, multiple safety features, and broad application range make it a reliable choice as a backup or primary power adapter.

Rechargeable NiMH Battery Pack: 7.2 V, 900 mAh, 3x2 AAA Cells, JR Connector

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 DC-DC Buck Converter DC5-36-TO-DC3V3-5 in SMD version is designed for direct surface mounting. With selectable output voltage and high efficiency, it is suitable for applications involving microcontrollers, IoT systems, and mobile electronic devices.

The very small step-down 6 V, 2.5 A synchronous inverter can be supplied with voltage up to 36 V, dimensions: 17.8 mm x 17.8 mm. Pololu 2859

Rechargeable NiMH Battery Pack: 4.8 V, 350 mAh, 4x1 2/3-AAA Cells, JR Connector

The BLOW 6 V / 2 A charger is a universal device for powering and maintaining gel, AGM, and lead-acid batteries with a voltage of 6 V. Thanks to pulse charging technology, optical LED indicators, and built-in safety features, it is suitable for both home and professional service applications. Its compact design and automatic adjustment of charging parameters ensure convenience and safe operation.

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.

Alkaline GP Ultra + C R14 battery (1.5V voltage) 1 piece. Weight 60g