Review on Dell Inspiron Laptop Charger, 65W 4.5mm Tip AC Power Adapter (Power Supply) with Power Cord - Compatible with Inspiron 13 14 15,3000 5000 7000 Series, 5558 5755 3147 7348-2in1 5555 5559, 0G6j41 0MGJN by Dan Quiceno

This additional power supply was purchased for travel destinations as there is no need to bring the original power supply. Mitigates events when power source is forgotten. I'm not sure why Dell.com charges a whopping amount to buy additional power supplies! Purchasing additional laptop power adapters should be expected and recommended from the original manufacturer, not a third party! I think they are happy to pay more money for business insurance rates due to customer laptop failures. 100-240V; 1.6 amps; 50-60Hz 65.0W; 19.5 volts; 3.34A Genuine OEM Laptop Dell Logo Power Adapter I ran a series of tests and recorded the charging speed after 10 minutes along with the temperature of the transformer. Charge rate for Dell Inspiron 5502 after 10 minutes, battery charge rate of 8-9%. The temperature reading on the transformer was 90-100F. This newer PSU, purchased from Revain.com, initially appears to have had slightly cooler temperatures and better charging speeds than the original PSU purchased with the Dell Inspiron 5502. In the end, after 30 minutes of testing, it ended up with similar performance and a similar part, just with a different part number and marking.