Balancer allows you to equalize the voltage of the packets\' target during charging, so that the packages will be much longer operational. The balancer works with LiPo batteries (lithium-polymer) and LiFe (lithium-iron) with a number of cells from 2 to 6. In addition, the device has the function of unloading the packets

This small synchronous switching step-down (or buck) regulator takes an input voltage of up to 36 V and efficiently reduces it to 7.5 V. The board measures only 0.7″ × 0.7″ yet delivers a typical continuous output current of up to 2.4 A and features reverse voltage protection.

The very small step-down 6 V, 2.5 A synchronous inverter can be supplied with voltage up to 36 V, dimensions: 17.8 mm x 17.8 mm. Pololu 2859

Photovoltaic panel allows conversion of solar radiation into electrical energy. It has 2W power and 6V output voltage, and its construction has dimensions of 136 x 110 mm. The panel is flooded with resin, which protects it against dirt and mechanical damage. Solar Panel 2W

The Step-Up / Step-Down S18V20F12 inverter module gives the output voltage of 12V with a wide input voltage range of 3 ... 30V and a maximum output current of 2A. Polol 2577

MPPT charge controller module designed for photovoltaic systems. It can charge one lithium-polymer cell, and thanks to MTTP technology, optimal charging parameters are used for the prevailing conditions. SparkFun PRT-12885

The compact (0.4″ × 0.5″) D24V5F2 synchronous buck voltage regulator takes input voltages between 3 V and 36 V and efficiently reduces them to 2.5 V while allowing for a maximum output current of 500 mA. This regulator offers typical efficiencies between 80% and 90%. The pins have a 0.1″ spacing, making this board compatible with standard solderless breadboards and perfboards.

The compact (0.4″ × 0.5″) D24V5F9 synchronous buck voltage regulator takes an input voltage of up to 36 V and efficiently reduces it to 9 V while allowing for a maximum output current of 500 mA. Pololu 2845

This synchronous switching step-down (or buck) regulator takes an input voltage of up to 38 V and efficiently reduces it to 5 V with an available output current of around 9 A.

This small synchronous switching step-down (or buck) regulator takes an input voltage of up to 38 V and efficiently reduces it to 9 V. The board measures only 0.7″ × 0.7″, but it allows a typical continuous output current of up to 2.5 A. Typical efficiencies of 85% to 95% make this regulator well suited for powering moderate loads like sensors or small motors.

This small synchronous switching step-down (or buck) regulator takes an input voltage of up to 38 V and efficiently reduces it to 6 V. The board measures only 0.7″ × 0.7″, but it allows a typical continuous output current of up to 2.5 A. Typical efficiencies of 85% to 95% make this regulator well suited for powering moderate loads like sensors or small motors.

Pololu 2834

Pololu 2832

Pololu 2830

A two-part set that enables wireless power supply for devices with a voltage of 5V. 7W power can be obtained at a distance <7mm. Maximum efficiency 50%

Step-Up converter with an output voltage of 12 to 80 V, an input voltage of 8 to 60 V and a maximum current of up to 20 A

The 10 W AC adapter provides 5 V and 2 A current. It is equipped with a 1.5 m cable with a 2.5 x 0.7 mm plug. Akyga AK-TB-21

The BLOW LR41 alkaline battery combines high-quality craftsmanship with an affordable price. It is perfect for powering various watches, car remotes, gate remotes, toys, scales, medical devices, smart home system devices, and many more.