My understanding (as limited as it is!) is that if space and weight are not an issue, then lead batteries provide a great deal of benefits today, especially whe

My understanding (as limited as it is!) is that if space and weight are not an issue, then lead batteries provide a great deal of benefits today, especially when you can add to your system with 'dead' car batteries and the like. It is only where space and weight are an issue that you need to move to newer tech. I am fully prepared to be incorrect here though!