LENOGE 18.5V 3.5A 65W HP Adapter Charger for HP Pavilion DV4-1000 DV4T-1000 DV4Z-1000 DV5-1120 DV5t DV5z HP Pavilion DV7 DV7t DV7z A900 CQ40 CQ45 CQ50 CQ50-100 B1210 EliteBook Notebook High speed charging Output overcurrent protection Temperature protection Output overvoltage protection Current protection Hardware overcurrent protection Current overcharge protection Fast charge Low power comsuption Long life runtime Premium Components Impact tested Vibration tested Extreme Temp Tested -40to 150F Lenoge Brand Perfect Interface Persistent Durable Ac Adapter Product instruction