Genuine Dell Chromebook chargers are listed below, all include the battery charging unit and mains power cord, Dell Chromebooks do use a few different types and wattage of chargers, from the old 7.4 barrel with pin centre, to the smaller 4.5mm barrel with pin centre and now also the USB type C series of ac adapters, so either check your old chargers specification or if you have lost this, then simply look underneath your Chromebook and it will state the charger needed and the specification. If after this you are unsure, then simply contact us and we can check and will get back to you ASAP.