FIG. 16 illustrates an integrated dimming LED driver and battery backup system between an AC mains and a set of one or more LED lights. Unlike FIGS. 3-10, the integrated dimming LED driver 1600 incorporates the dimming functionality of the separate LED driver and its ability to drive the LEDs based directly on AC mains power, into the backup battery system. Here, the LED driver that draws directly from an AC mains 1605, and the LED driver that uses stored energy, are one and the same. In particular, the system 1614 receives AC power from the AC mains 1605, rectifies the power via a rectification circuit 1602, provides the rectified or DC power to a voltage regulator circuit 1607 (at a voltage V1), where the voltage regulator circuit 1607 provides a regulated bus voltage, V3, to a bus 1660. The bus voltage, V3, can be regulated to always be equal to or greater than a voltage needed to maintain the one or more LEDs 1604 in an on-state. The bus 1660 is coupled to a voltage to current converter 1616 and an energy storage management system 1610. The voltage to current converter 1616 turns the voltage V3 on the bus into a regulated current, ILED, that drives one or more LEDs 1604. The bus 1660 is also coupled to the energy storage management system 1610 and any number of accessories (e.g., see FIG. 36). The energy storage management system 1610 can be coupled to, or can include, an energy storage device 1608 (e.g., a battery), that is charged to a voltage, V2, that may or may not be different than V3. The energy storage management system 1610 includes a control 1632 configured to monitor and control charging of the energy storage device 1608 as well as to monitor and control provisioning of power from the energy storage device 1608 back to the bus 1660. A master controller 1690 can be arranged in either the voltage regulator circuit 1607 or the voltage to current converter 1616, and this master controller 1690 can monitor the system 1614 and provide instructions to the energy storage management system 1610 to charge, discharge, or maintain the energy storage device 1608.
