http://www.ybysolar.com/solar-charge-controller/
Yes you can have 2 (or more) MPPTs on the same battery bank. If it was not possible, you would never be able to have, more panels, than can be handled by 1 MPPT, in 1 system.

Maximum Power Point Tracking(MPPT) Solar Charge Controller is aphotovoltaic (PV) charge controller that tracks the maximum power point of a PV array to deliver the maximum available current for charging batteries. The charge controller can be used with 12 and 24 DC battery systems , Max PV input 100V.

System Voltage12V/24V
PV Max Input Voltage100V
PV Max Input Power12V 390W锛?4V 780W
Self-consumption鈮?3mA
Max Charging current30A
Max Discharging current30A
LVD11.0V ADJ 9V鈥?12V锛浢?/24V
LVR12.6V ADJ 11V鈥?13.5V锛浢?/24V
Float Voltage13.8V ADJ 13V鈥?15V锛浢?/24V锛?/p>
Boost Voltage14.4V 锛?脳2/24battery voltage less than 12.6v restart boost 2hours
Battery Over Voltage Protection16.5V 锛浢?/24V
Reverse Connection ProtectionYes
Load Over Current ProtectionYes, each 30s auto restart again
Controller Over Temperature ProtectionYes
Charging TypeMPPT
Temperature Compensation-24 mV /鈩?for 12Vsystem 锛浢?/24V锛浢?/48V
Working Temperature-20鈩冣€?55鈩?/p>
Terminals scale16mm2
Waterproof gradeIP32
Size200mm*183mm*54mm
New weight1.2KG
Bulk Solar Charge Controller
website:http://www.ybysolar.com/solar-charge-controller/