BESSs require several battery modules to be connected in series and parallel depending on the system level voltage and capacity that they need to cater to. Maxwell BMS’s distributed architecture allows for BMS Slaves to be stacked in series and parallel , as per the BESS needs, allowing for flexible design of the BESS. The stackable architecture enables >20 slaves to be connected to a single BMS master over isolated communication channels. Furthermore, multiple BMS master can also be connected over CAN enabling easy system scalability.

BESSs require multiple “racks” to be paralleled to increase overall capacity. Paralleling racks of unequal voltages leads to large inter-circulating current that can damage them. Maxwell BMSs employ a unique feature that ceases this problem, without the need for any additional hardware. Additionally,  its “Limp Mode” allows for system operation with functioning racks even if a few racks are “faulty”, instead of shutting down the entire system.

From basic configurability such as nominal current, cell chemistry, cell S&P layout to  advanced configurability such as SOX tuning, configurable RDC, SOP, CAN,  are readily supported on Maxwell BMS through an easily accessible application layer. With this application layer, lead time in tuning the BMS as per the vehicle’s needs is faster and simpler.