I have this APS SCSI drive that's battery powered but lack the external charger. I would have thought it would take a DC adapter but on opening the case on the circuit board where the external power supply connects it says AC but no voltage. Inside is 7.2 volt NiCad battery and a 2.5" SCSI drive. The FCC ID is IDKAPS-9000. I've looked on the net without finding anything. I'm hoping someone might have one and could give me some info on the external power supply.