An efficient step-down converter that reduces the input voltage to 3.3 V at a maximum current of 100 mA, offering high efficiency thanks to its low quiescent current (<20 μA). It supports input voltages from 3.3 V to 65 V, has short circuit and overheating protection, making it a reliable and energy-efficient solution. Pololu 5362

20 cm long cable with XT60 plug and two banana plugs. It allows you to connect a battery with an XT60 socket to the charger

Step-Up converter with adjustable output voltage from 5 to 40 V, input voltage from 3 to 35 V and a maximum current of 5 A

DC-DC Step-Down converter module AP63203 with an output voltage of 3.3 V, an input voltage of 3.8 to 32 V and a maximum output current of 2 A. SparkFun COM-18357

The 4 AAA R3 battery holder is a basic but essential item for those who need a simple way to connect batteries for higher voltage. Cable length 15 cm

Li-Po battery with a rated voltage of 3.7 V and a capacity of 300 mAh, equipped with a PCM protection and a 2.5 JST-RCY connector. Akyga AKY0657 - LP752030

15V/4A power supply

The Akyga 23A alkaline battery with a voltage of 12V and a capacity of 48 mAh is a reliable power source for devices requiring stable energy, such as garage door remotes, alarm systems, and wireless doorbells. Utilizing Zn-MnO₂ technology, the battery ensures long-lasting performance and resistance to temperature fluctuations, guaranteeing dependable operation even in demanding conditions.

Maintenance-free 6 V 1.3 Ah gel battery using AGM technology, measuring 97 x 53 x 24 mm, designed for backup power systems, UPS units, alarm systems, and other applications requiring a stable power source

The 2 S balance cable extension enables convenient extension of battery balance leads without loss of charging precision. Durable construction makes it suitable for RC setups and workshop chargers.

AK-TB-10 is a power supply unit with parameters 12V/1A and 12W power with a 5.5 x 2.1 mm plug, suitable for LED strips and other devices. Akyga AK-TB-10

Rechargeable UltraCoin lithium battery LIR2032 with a nominal voltage of 3.7V and a capacity of 70mAh, designed for devices requiring small, rechargeable coin-type power sources. Akyga AKY1707

The 3.3V and 5V power supply module is a versatile solution for projects requiring power at different voltage levels, ideal for microprocessor and sensor systems. Compatible with breadboards, it supports 6V - 12V input and offers simultaneous 3.3V and 5V outputs, providing stable power for a variety of components.

The active PoE 5V / 2.4A Type-C splitter allows you to supply devices with 5 V (USB Type-C) voltage using energy transmitted via an Ethernet network using Power Over Ethernet (PoE) technology. The adapter also allows network connectivity at 10 / 100Mbit.

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.

Goobay 6 V 4000 mAh lead-acid battery is a reliable power source for backup and auxiliary applications. Featuring a 4.8 mm Faston connector, maintenance-free operation, and long service life, it is ideal for use in UPS systems, emergency lighting, and backup power supplies. Its durable construction and low self-discharge ensure long-lasting, stable performance in various environmental conditions.

Holder for 3 AA R6 batteries with a flap and a switch is an ideal solution for people who need a simple and reliable way to connect AA batteries to obtain a voltage of 4,5 V

Switch-mode power supply (constant voltage) with an output voltage of 12 V and a maximum current of 2 A. The cable terminated with a DC 5.5x2.1 plug

Compact charger module that allows you to power your electronics projects from USB-C, DC power (5-18V) or solar panel. Supports various cell types (LiIon, LiPoly, LiFePO4) and offers a choice of charging currents (250mA, 500mA, 1A), automatically optimizing energy harvest from solar panels without the need for an additional MPPT. With built-in power path management, status LEDs and regulated LOAD output (up to 4.5V), it is ideal for mobile and energy-independent projects. Adafruit 6091

Step-Down converter with an output voltage of 5 V, an input voltage of 6.5 to 16 V and a maximum current of 4 A