[Al Skierkiewicz]

Fox,
What I am thinking is that many smart chargers switch between charge and load during the charge cycle. This allows them to determine the state of charge in the cells. This switch cannot be synchronized between individual chargers. So if these chargers do indeed switch, they cannot all do that at the same time. In the better case, one charger feeds current into another and little or no current passes to the battery. In the worst case, the chargers become confused and add current when the battery is at a point where the charge current should back down. Damage would result over time in that second case. In the maintain mode, the switching is likely to play havoc with voltage sense. I would run some tests with a load current tester like the CBA III to determine the load characteristics of a battery charged under a three charger 5.4 amp run and that of a 6 amp one charger run.