The Step-Down D24V3F3 Buck Voltage Regulator module gives the output voltage of 3,3V with a wide input voltage range of 4.3-42V and a maximum output current of 300 mA. Pololu 2097

The VARTA Recharge Accu Recycled AAA 550 mAh Solar battery is a sustainable, pre-charged Ni-MH cell perfect for energy-efficient, solar-powered devices and everyday AAA electronics.

The Step-Down D24V3F12 Buck Voltage Regulator module gives the output voltage of 12V with a wide input voltage range of 14.5-42V and a maximum output current of 300 mA. Pololu 2100

The Step-Down D24V3F9 Buck Voltage Regulator module gives the output voltage of 9V with a wide input voltage range of 11-42V and a maximum output current of 300 mA. Pololu 2099

Rechargeable NiMH Battery Pack: 4.8 V, 2200 mAh, 4x1 AA Cells, JR Connector

Pololu 5V Step-Up Voltage Regulator U3V50F5

QC 18 W Wall Charger with Dual USB Ports is a universal and efficient solution for everyday charging of various electronic devices. Thanks to fast charging technology and a comprehensive protection system, it ensures full safety of use and comfort during operation at home, in the office, or while traveling.

The Akyga AKY1087 CR2450 lithium battery with a voltage of 3V and a capacity of 600 mAh provides long-lasting power for electronic devices. Utilizing Li-MnO₂ technology, it offers stable voltage and high energy efficiency. Its operating temperature range of -20°C to +70°C ensures reliable performance in various environmental conditions.

Rechargeable NiMH Battery Pack: 6.0 V, 900 mAh, 5x1 AAA Cells, JR Connector

Akyga® AKY1109 is a reliable CR2032 HP2B lithium battery with 2-pin leads for THT (through-hole) mounting, designed to power electronic devices such as RTC clocks, controllers, memory modules, IoT systems, and medical equipment. Its high capacity, temperature resistance, and stable voltage make it an ideal choice for long-term electronic projects and as a backup power source in applications requiring durability and precision.

Ni-MH XTREME 9V 310 mAh rechargeable battery is an eco-friendly and economical power source for modern portable devices with high energy demands. With a high number of charge cycles and resistance to harsh operating conditions, it is a reliable solution for both home and professional applications.

The Step-UpU1V11F5 Buck Voltage Regulator module with output voltage 5V, input voltage range of 0.5-5.5V and a maximum output current of 1.2A. Pololu 2562

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

Ubiquiti U-POE-EU is a reliable, high-performance PoE adapter providing stable power to 802.3af devices in professional network installations. Thanks to its compact size, surge protection, and high-quality construction, it is an ideal solution for projects requiring efficient and safe power delivery over Ethernet networks.

The BLOW SUPER ALKALINE AAA (LR3) 1.5V alkaline batteries are reliable power sources, ideal for powering everyday devices such as remotes, clocks, and flashlights. They feature long lifespan and stable energy delivery, ensuring optimal device performance. The package contains 10 pieces of these batteries.

The holder for 8 AA R6 double-row batteries is an ideal solution for people who need a simple and reliable way to connect AA batteries to obtain 12 V voltage

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 wireless XT60 – EC5/EC3 adapter enables quick connector conversion in RC and FPV power systems without the need for soldering. The compact design facilitates installation in limited space.

An efficient step-down converter that reduces the input voltage to 12 V at a maximum current of 100 mA, offering high efficiency due to low quiescent current (<50 μA). It supports input voltage from 12 V to 65 V, has a Power Good (PGOOD) function, an EN input for system shutdown, and short circuit and overheat protection, making it a reliable and energy-efficient solution. Pololu 5377