Laptop

[weecalf]

Thought I had posted this question but it did not appear Was asking is there a big difference between a Pa -6 and a PA- 9 adaptor .The laptop has on the reverse for use with adapter PA -6 .I have tried a Pa -9 as I was advised it would do the dell C600 Latitude.The adapter seems to fit the connection .So im wondring could Pa-9 work or would it not relace the PA -6 and could it do the laptop harm by using the wrong adapter .The is no power going to the laptop via the Pa-9 adaptor .

[Buenchico]

Assuming that the connections are the same (which your post suggests is true), the only difference between the two adapters appears to be their current rating.

The PA-9 is rated as supplying 20V at 4.5A
The PA-6 is rated as supplying 20V at 3.5A.

The 'current rating' of an adapter shows the maximum current that it can supply without overheating. It can happily supply a lower current without any problems.

So, if a laptop was designed for use with the PA-9 adapter (because it 'draws' 4.5A), using a PA-6 would not be appropriate because the adapter would be required to provide a current above its rating (which could lead to overheating and potential 'burn out' of the adapter)

However, if a laptop is designed for use with the PA-6 adapter (because it 'draws' only 3.5A), a PA-9 adapter could be used without any problems (because the current 'drawn' by the laptop is lower than the maximum available from the adapter).

If I've read your question the right way round, you're seeking to replace a PA-6 with a PA-9. As long as the connections are genuinely the same (and not, for example, with the positive and negative connections reversed, which would seem to be extremely unlikely), there should be no problems.

If your laptop is failing to accept power from either adapter, it suggests a problem with the laptop's power circuit, rather than with the adapters.

Chris

[weecalf]

Thanks Chris .Perhaps my wording put you off .I have used a pa9 and nothing has hapened so I noticed that the laptop requires a Pa-6 ..With what you have sain then perhaps there is afault i the laptop .Hope to get a PA-6 and see how it works .Will let you know how I get on

[rojash]

Try removing the battery, then connecting the PA-9

[weecalf]

rojash tried that no luck .The battery led light up orange but when power connected for over a hour no sign of life the laptop does seem to getting power from the mains .