![helpers lab AC Power Cord Charger Laptop Adapter Tip Connector Converter for HP Pavilion Envy EliteBook Compaq Business NotebookThin Client Female blue tip 4.5mm to 7.4mm: Amazon.co.uk: Computers & Accessories helpers lab AC Power Cord Charger Laptop Adapter Tip Connector Converter for HP Pavilion Envy EliteBook Compaq Business NotebookThin Client Female blue tip 4.5mm to 7.4mm: Amazon.co.uk: Computers & Accessories](https://m.media-amazon.com/images/I/81jc5xM+2BL._AC_UF350,350_QL80_.jpg)
helpers lab AC Power Cord Charger Laptop Adapter Tip Connector Converter for HP Pavilion Envy EliteBook Compaq Business NotebookThin Client Female blue tip 4.5mm to 7.4mm: Amazon.co.uk: Computers & Accessories
![200W 19.5V 10.3A 7.4X5.0 Big pin AC Adapter Charger Compatible for HP 8560w 8570w 8740w 8760w 8770w ZBOOK 15 17 G2 TPN-CA03 HSTNN-CA16/24 677764-002 Power Supply Cord: Amazon.co.uk: Computers & Accessories 200W 19.5V 10.3A 7.4X5.0 Big pin AC Adapter Charger Compatible for HP 8560w 8570w 8740w 8760w 8770w ZBOOK 15 17 G2 TPN-CA03 HSTNN-CA16/24 677764-002 Power Supply Cord: Amazon.co.uk: Computers & Accessories](https://m.media-amazon.com/images/I/71+oyoPUJSL._AC_UF1000,1000_QL80_.jpg)
200W 19.5V 10.3A 7.4X5.0 Big pin AC Adapter Charger Compatible for HP 8560w 8570w 8740w 8760w 8770w ZBOOK 15 17 G2 TPN-CA03 HSTNN-CA16/24 677764-002 Power Supply Cord: Amazon.co.uk: Computers & Accessories
How does a Dell laptop charger with a pin of the same wattage & specs which fits perfectly into an HP not work because it knows it is not an HP charger
![DELL Laptop Charger Big Pin 65 W Adapter, Output Voltage: 19.5 Volts, Input Voltage: 240V at Rs 600/piece in Kolkata DELL Laptop Charger Big Pin 65 W Adapter, Output Voltage: 19.5 Volts, Input Voltage: 240V at Rs 600/piece in Kolkata](http://5.imimg.com/data5/SELLER/Default/2022/6/UN/NQ/ES/4269059/dell-laptop-charger-big-pin-65-w-adapter.jpg)