World Wide Input Voltage 100-240VAC 50/60Hz. OVP, OCP, SCP Protection (OVP: Over Voltage output Protection. OCP: Over Current output Protection. SCP: Short Circuit output Protection). Tested Units. In Great Working Condition. New 5V AC Adapter Compatible with Black & Decker Pivot Driver 9078 Type 1 Cordless Position Screwdriver Screw driver Drill 3.6V DC 3.6 Volts 3.6 Volt 3.6VDC B&D Rechargeable Battery Screw Driver 5VAC AC5V 5.0V Class 2 Power Supply Cord Cable PS Wall Home Battery Charger Mains PSU !!!Note: Rechargeable batteries don't last forever, the average battery last 1 to 3 years. If the battery is old/dead, it will not accept a charge. But not charger's problem. If you're not sure whether battery or charger is dead or not. You must have a volt meter in order to tell whether or not a charger is working. 5V AC Adapter Compatible with Black & Decker Pivot Driver 9078 Type 1 Cordless Position Screwdriver Drill 3.6V DC 3.6 Volt B&D Rechargeable Battery Screw Driver 5VAC Power Supply Cord Charger