Li-Fe battery monitor that can measure voltage, current, power during charging and discharging, and watt-hours consumed and run time. The user can use a mobile application and a computer to control the measuring module. Juntek KG110F

The symmetrical power supply based on LM317 and LM337 offers a DC output in the range of 1.3-25 V with a power of 25W and a current of up to 1A. Equipped with a resettable fuse for overload protection, it is compact with dimensions of 62 x 59 x 30 mm.

3-C Battery Holder

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

The Akyga AK-SC-E08 adapter converts the Type 2 connector to Type 1, allowing you to charge older models of electric cars and those imported from overseas at European charging stations. Made of durable materials, it guarantees long service life and reliability. Akyga AK-SC-E08

The Akyga AK-SC-E07 Tesla Charging Adapter allows you to charge American Tesla models in Europe using a Type 1 charger. It is small, solid and compatible with Tesla Models S, X, 3 and Y. Perfect for people bringing a Tesla from overseas. Akyga AK-SC-E07

Rechargeable NiMH AAA Battery: 1.2 V, 900 mAh, 1 cell

The LM7806 6 V 1.2 A linear stabilizer module is a reliable and easy-to-use voltage stabilization solution for all electronics projects. Thanks to its solid construction, built-in protections and high efficiency, this module provides a safe and constant 6 V power supply, being an invaluable component in the work of every electronics engineer

Travel adapter suitable for over 150 countries, with a built-in 12W charger and two USB-A ports, has retractable plugs with a lock, universal socket, child safety lock, flame-retardanthousing, and a spare 8A ceramic fuse, does not convert 230V voltage to 110V. YT-81301

A DC-DC voltage converter, based on a combination of an LM2577S Step-Up converter and an LM2596S Step-Down converter. The input voltage can range from 3.5 V to 28 V, and the output voltage is adjustable from 1.25 V to 26 V

Solar energy management module designed for solar panels with a voltage of 6 V to 24 V. It uses a USB Type-C connector and can supply current from a voltage of 5 V and a current of 3 A. Perfect for charging 3.7 V batteries. Comes with a basket for 3 18650 batteries. Waveshare Solar Power Manager (D) Acce A

Holder for 3 AA R3 batteries with a flap and a switch is an ideal solution for people who need a simple and reliable way to connect AAA batteries to obtain a voltage of 4.5 V

The 4 AA R6 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

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

Holder for 4 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 6 V

The Step-Up Buck Voltage Regulator module with output voltage of 3.3V and input voltage range of 1-3V and a maximum output current of 200 mA. SparkFun PRT-10967

Solar panel with an output voltage of 5.5 V and a power of 0.4 W. It has dimensions of 65 x 65 x 3 mm and pads for soldering the wires

Rechargeable NiMH Battery Pack: 6.0 V, 2200 mAh, 5x1 AA Cells, JR Connector

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