A DC-DC converter is an electrical system (device) which converts direct current (DC) sources from one voltage level to another. In other words, a DC-DC converter takes as input a DC input voltage and outputs a different DC voltage. The output DC voltage can be higher or lower than the DC input voltage.

A variable dc power supply is one of the most useful tools on the electronics hobbyist's workbench. This circuit is not an absolute novelty, but it is simple, reliable, “rugged” and short-proof, featuring variable voltage up to 24V and variable current limiting up to 2A.

A battery charger, or recharger, is a device that stores energy in a battery by running an electric current through it. The charging protocol depends on the size and type of the battery being charged

Zip Charge has introduced a portable electric vehicle charger, called the Go. The portable charger looks just like an average-sized regular suitcase, and weighs about 22 kgs. It comes with a 4 kWh battery capacity and can charge an EV at the capacity of 7.2 kW.

High Power Charging is a charging technology developed by Phoenix Contact and installed in fast charging stations for electric vehicles. With the technology, long charging times are a thing of the past: Electric car batteries can be charged for a driving range of 100 kilometers in just 3–5 minutes. Output Voltage 220VDC

Standard voltage outputs are 24V and current output range from 6A to 20A. To protect the battery load against deep discharge, the FCBC has Low Battery safety circuit which also monitors the built-in charger. The power supply has reverse battery polarity trip circuit which prevents fatal accidents.