Question: are all dell inspiron chargers the same?
Answer: Yes and no. The adapters are not exactly the same, but the difference is not major. ... The 90 watt adapter should be 19.5 volt, 4.6 amp output. Do not try to use an HP or ACER or any other brand adapter on the Dell, they are not meant for a Dell and likely do not use the same voltages and different power plugs.