Gabriella- Two things. One , I agree with Edward t on his observations. Every place the I have seen the quick charge battery system in place they always seem to have a shorter life span. Two, If you want to really find out about the lift truck industry talk to service techs and people involved in the parts systems. The proper spec truck is a balancing act between what is really needed and what some salesman will try and sell you. Omce they get their sales comissiom most can care less.
I have said this before If you want somke blown up your b--- contact your local sales man.