Social positivism In general terms, positivism rejected the Classical Theory's reliance on free will and sought to identify positive causes that determined the propensity for criminal behaviour. Rather than biological or psychological causes, this branch of the School identifies society as the cause.
Replacing solar light batteries is not a difficult task. All you have to do is to locate the solar light battery cover, remove it, take out the defective batteries and replace them with new ones. If no battery cover can be found, the solar light needs to be taken apart, usually with one or two screws.
Without deep cycle batteries, you can only use power at the time you produce it (i.e. you will not have power when the sun isn't out if you don't have batteries in your solar electric system). In renewable energy systems, deep cycle batteries provide the energy storage for your system.