A battery charger is a device used to put energy into a secondary cell or rechargeable battery by forcing the...

A battery holder is a device having one or more compartments or chambers for holding batteries. For dry-cell, the holder...

A programmable logic controller (PLC) is a solid-state device that controls the output of the process through the program given...

PLC stands for “programmable logic circuit” It is general-purpose computer modified specifically to perform control tasks. It is used for...

Primarily batteries are used only once and then discarded. They have the advantages of convenience and the cost of batteries...