2 chargers connected to one battery bank?

only problem I see with running two chargers is they may drop out of "boost" mode earlier thinking the batteries are near full, as it takes less amps to maintain a set voltage. Once the actual battery voltage climbs high enough, they will taper amperage to maintain it, then shift to float voltage. With the batteries say 80% charged you don't want the charger dropping to float mode because the amps going out of the charger got to low.