he M3-SE-PA module provides regulated and conditioned power to other M3-SE modules stacked on top of it via the passthrough connector. The module also provides seamless reliable battery power backup for 3+ hours in the event of external DC power loss. The M3-SE-PA supports a wide range of DC inputs so that batteries can be charged from a variety of power sources. It is airline checkable and carry-on ready. The module is designed to be the bottom module of an M3-SE stack.