I think that for energy consumption in future we can depend on solar and water completely. I have gone through solar panel companies to know about their function and money they charge for installing solar panel. This is good actually people are getting responses and understanding the requirement for energy production.
Back in the old days we would empty the acid into a container add water then put on a charger for a period of time(High Voltage). When the battery sides were real warm we would then dump the water out,then replace the acid.
This process would clean the lead plates and would bring the battery back to life..