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Disassembly: With a flat-blade screwdriver, remove the rubber feet. This reveals 3mm/7-64th hex head screws. Remove them. The bottom should be able to to be separated from the unit to reveal the printed circuit board (PCB). The PCB is pressure fit in to the house and should be able to be removed.
Troubleshooting: Look for the DC voltages. Autopsy: Judging by the failed components, here is a guess as how my charger failed:
My house did not take a direct hit from the lightning bolt. If so, I’d have visible damage and many more items would have been destroyed. The charger was in the garage. My guess is the plasma field of the lightning caused the MBR2560CT to internally short. This caused maximum drive current to be sourced by the TOP368EG on the input side. Diode US1M on the right side of the picture was replaced as a part of the troubleshooting effort, but was probably good. The 3.15 amp input fuse did not blow and is still functioning.