Power supplies convert AC voltages to DC. For example, your television set uses both AC and DC voltages. AC voltage from the wall outlet is converted to DC by way of a power supply inside the television. DC voltages then power the electronics that make the television work. The same is true with your desktop computer. It also has a power supply that takes in 110 VAC (volts alternating current) at 60 Hz and converts it to several levels of DC voltages with +12 VDC, +5 VDC and - 5 VDC being the most common. There are also two basic forms of power supply technologies - linear and switching - and both have their own particular advantages. Your desktop computer power supply is of the switching variety. In this course we study a very basic linear power supply, however most modern electronics are powered by switching power supplies that use embedded microcontrollers to convert AC to DC successfully.
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You can now recondition your old batteries at home and bring them back to 100 percent of their working condition. This guide will enable you to revive All NiCd batteries regardless of brand and battery volt. It will give you the required information on how to re-energize and revive your NiCd batteries through the RVD process, charging method and charging guidelines.