Efficient step-down converter that reduces the input voltage from up to 45 V to a regulated output voltage range from 1.4 to 7 V, offering high efficiency and a maximum continuous current of 3.8 A. It has built-in protection against reverse polarity, overload and short circuit, and the spread spectrum function reduces EMI interference. The module is equipped with an additional potentiometer for adjusting the cut-off voltage. Pololu 4852

Switching power supply with a power of 150 W, an output voltage of 15 V and a current of 10 A. It has built-in protection against overload, overheating and short circuit and a low housing profile. Mean Well LRS-150-15

Plug-in switching power supply 5V 2000mA with a 2.1/5.5 mm DC plug and center-positive polarity, used for powering electronic devices requiring a stable 5 V supply with a load of up to 2 A. Blow 71-213#

Multifunctional power supply with adjustable output voltage from 3V to 12V and 30W power. It has a USB output and a DC plug with 6 interchangeable tips.

Step-down voltage regulator module based on the APM81815 providing a fixed 12 V output at up to 0.8 A with an input voltage range of 12.1 - 72 V. Pololu 5269

The AG5 alkaline battery (also known as L754 or LR48) with a 1.5V voltage is a small power source, ideal for use in small electronic devices such as watches, remotes, and toys. Its compact size allows for use in devices that require small batteries. The blister pack contains 10 pieces, making it a practical solution for users who need reliable power.

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

An efficient step-down converter that steps down the input voltage from as low as 45 V to a regulated output voltage range of 1.4 to 7 V, offering high efficiency and a maximum continuous current of 3.8 A. It has built-in reverse polarity, overload and short circuit protection, and the spread spectrum function reduces EMI interference. Pololu 4853

The JST‑XH 2–6 S balance adapter allows flexible use of LiPo, LiHV, and LiFe battery packs in compatible systems. Compact and durable design ensures reliable operation in charging stations and RC projects.

CR123A lithium battery with 3V voltage and 1400mAh capacity. GP CR123A

Switch-mode power supply with an output voltage of 24V and current efficiency of 2.7 A. The cable is terminated with a 5.5x2.5 mm DC plug and has built-in overload, overvoltage and short-circuit protection. CELLEVIA POWER CLD-6524-T3-ER25

HAT adapter for PoE supply for Raspberry Pi 3B+ and Raspberry Pi 4B. It allows you to use the PoE interface to power the Raspberry Pi via an Ethernet cable, eliminating the need for a separate power supply. Uctronics U6110

The protection circuit for one Li-Ion cell with a voltage of 3.2 V. It has the function of charging, discharging and over-discharge protection. The cells can be discharged with a continuous current of up to 12 A

Power supply 19 V / 3.5 A with 5.5 / 2.5 mm plug in the European version provides stable and safe power for electronic devices requiring 19 V. The compact design and safety certifications confirm its reliability in industrial and hobby environments.

Bulk pack of 40 everActive Industrial Alkaline AA batteries offers 1.5 V and 2700 mAh capacity for high-performance, long-lasting power in professional and personal applications.

Li-Po battery with a nominal voltage of 3.7 V and a capacity of 220 mAh, equipped with a 150 mm cable terminated with a 2-pin JST connector with a 2.54 mm pitch. Integrated PCM protection safeguards against overcharge, over-discharge, and short circuit. Dimensions: 36 x 20 x 4 mm, weight: 6 g. Akyga LP402036

Switching power supply with a power of 50 W, output voltage of 12 V and current of 4.2 A. It has built-in overload and short-circuit protection and a low profile design. Mean Well LRS-50-12

ToolkitRC M450 enables safe and precise charging of 1–4 S LiPo, LiHV, and LiFe batteries, offering 50 W power and 200 mA balancing. Its compact size and clear IPS display make it a reliable tool for RC hobbyists, electronics enthusiasts, and workshop users.

Step-Down converter D36V28F7 with an output voltage of 7.5 V, an input voltage from 8 to 50 V and a maximum output current of 3.7 A. Pololu 3784

Switch-mode power supply with a power of 110 W, an output voltage of 5 V and a current of 22 A. It has built-in protection against overload, overheating and short circuit and a low profile design. Mean Well LRS-150F-5