I have been wanting to buy a spare PSU for my U9200. I ve noticed it uses a 20v 4.5a 90watt PSU, which I cant seem to find on ebay with a 2.5 5.5 connector, at least on reasonable prices. Some other Fujitsu Siemens Laptops from the same era I ve seen, actually a 15.4 one that looks exactly the same as my U9200, uses 20v 3.something Amperes PSU, so I was wondering if I could use the PSU with less amperes on my U9200.
I find the 4.5A to be a little too much for a laptop like this, and i suppose its probably for charging the optional 2nd battery. Does anyone know about this?