The S9V11MACMA switching step-up/step-down regulator efficiently produces a finely adjustable output between 2.5 V and 9 V whether it is higher or lower than the input voltage, which can range from 3 V to 16 V. The regulator also has a precision-adjustable low-voltage cutoff with hysteresis that can be used to prevent battery over-discharge.

The Step-UpU1V11F3 Buck Voltage Regulator module with output voltage 3.3V, input voltage range of 0.5-5.5V and a maximum output current of 1.2A. Pololu 2561

Car charger 12/24V Akyga AK-CH-10 45W 4x USB-A 5V / 9A modular black. Akyga AK-CH-10

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 Step-Up NCP1402 Buck Voltage Regulator module with output  voltage 3.3V, input voltage range of 0.8-3.3V and a maximum output current of 200 mA. Pololu 2114

The S9V11F5S6CMA switching step-up/step-down regulator efficiently produces a fixed 5 V (default) or 6 V (selectable) output whether it is higher or lower than the input voltage, which can range from 2 V to 16 V. (Note: minimum start-up voltage is 3 V, but it operates to 2 V after that.)

Zinc-carbon AAA (R03P) batteries from the BLOW SUPER HEAVY DUTY series are a reliable power source with a voltage of 1.5V, ideal for devices such as cameras, portable CD players, shavers, remote controls, toys, flashlights, calculators, and clocks. The package contains 40 pieces, ensuring long-lasting use.

A universal travel adapter that converts power sockets from different regions, allowing you to power devices in the range of 110-250V at a current of up to 10A. Akyga AK-AD-61

The shunt regulator has an adjustable 4 ... 18V voltage, a 1.5 Ohm shunt resistance and a total of 32 SMT bypass resistors on both sides of the PCB. Pololu 3778

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

Module with a single-purpose LiPo charger with adjustable charging current in the range from 15 to 500 mA. It is equipped with a JST PH connector, pins and a 2450 type socket. SparkFun PRT-14380

Switch-mode power supply with an output voltage of 12 V and current efficiency of 5 A. The cable is terminated with a 5.5 x 2.1 mm DC plug and has built-in overload, overvoltage and short-circuit protection. URZ1193

Step-Down converter D36V50F3 with an output voltage of 3.3 V, an input voltage from 4.5 to 50 V and a maximum output current of 9.5 A. Pololu 4090

Pololu 9V Step-Up Voltage Regulator U3V50F9

Shunt regulator with a constant voltage of 13.2V, bypass resistance 1.33 Ohms and a total of 12 SMT shunt resistors on both sides of the PCB with the possibility of adding an external potentiometer to adjust the preset voltage. Pololu 3770

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.

A boost charger module that allows you to charge batteries from USB, DC, or solar panels, and power devices requiring 5V. Equipped with the BQ25185 and TPS61023, it provides high efficiency, optimized power consumption, and support for 500mAh or larger batteries. Adafruit 6106

The muRata CR1220 lithium battery is a 3V button cell with a 40 mAh capacity, used in low-power electronic devices such as remote controls and watches. Its dimensions are 12.5 mm in diameter and 2 mm in height.

The VARTA LONGLIFE AAA (LR03) 1.5V alkaline batteries are reliable power sources, ideal for devices with steady and low power consumption, such as remotes, clocks, and radios. They feature a long lifespan and stable energy delivery, ensuring the reliable operation of devices. The package contains 24 pieces of these batteries.

The Akyga® AK-SC-E16 is a high-quality solution designed for building or repairing charging cables for electric vehicles compatible with the Type 2 standard. Its durable construction, high current capacity up to 32 A, and compatibility with European charging stations make it a reliable choice for users and installers of EVSE systems.