johnr, that is what I used to think as well. Charger technology is changing somewhat and more is being discovered with the amount of amps being put back into the battery thereby keeping the true enemy - heat - to a minimum. I believe this is what is behind the explosion of "fast' and "opportunity" of lead acid batteries. "Fast chargers can be 4-5x the price of a regular charger while opportunity chargers are about 2x the price. Batteries for fast charge systems require extensive modification while opportunity batteries require little.

I do understand what you are saying about the Pallet pro system though - hardly an advanced charger onboard. :)