Do robots require a battery to charge or will they require no charge?
I meant to say like charging phone do we have to charge a robot or not?
Both the cases are possible. You'll find many robots that doesn't require batteries, as their main source of power is through solar energy stored in the built in solar panels on their body. But the problem with these robots are the same with those other solar appliances like it can't be of much help during rainy season and solar panels are also quite expensive. When it comes to batteries its a good choice because most of the robots work on them because they are cheap, light weight and convenient. These batteries are used depending upon the size of robot so its not an easy task to choose them. If we use multiple batteries, it will be more efficient but will require more time to charge and as for a single battery robot the opposite will happen.