Requirement of batteries is found in most of the electronic
items. Not only they make things portable but also easy to manage and even
without electricity they run. From a lighting pen to playing toys, from torch
to machineries, the requirement of batteries is found everywhere and if you
have to buy new set of batteries every time the charge is over, the expenditure
is going to be quite heavy. That is why you require rechargeable batteries
which can be charged and discharged for numerous times and it is not much
hazardous.
