Growatt’s BMS (Battery Management System) connections controller is a device located between the inverter and the battery. Its task is to check the state of charge of the cells and to balance them, i.e. to charge each cell with the correct current and voltage for it.

The APX battery system adopts cobalt free LiFePO4 chemistry and four-level protection by BMS, modular energy optimizer, fuse, and aerosol to ensure its enhanced safety, reliability, and long lifespan. Furthermore, the modular energy optimization ensures the system fully use every pack’s energy, mix packs of new and old batches, and mix packs of different capacity, which offer the most flexible system application.

The BDC controller is a device located between the inverter and the battery. Its function is to check the state of charge of the cells and to balance them. For photovoltaic systems that are also designed for energy storage, a BDC is necessary if the inverter does not have an integrated regulator. The BDC controller is designed for inverters of the MIN XH series, where it supports between 2-7 Growatt ARK HV batteries, and for inverters of the MOD XH series, where it supports between 3-10 Growatt ARK HV batteries.