I have acquired a Zenith SupersPort 286e portable computer without its battery and the external power supply unit seems dead (corrosion and/or leaking capacitors).
The problem is that the power suppy is 16.5 Volts (DC) and 2 Amps.
I couldn't find any new 16.5 Volts external power supply as it isn't a standard anymore.
I went to a specialist (the owner of a shop specialized in batteries and power supplies) and he told me that I could try a 16 Volts power supply with 2.2 Amps to compensate for the missing 0.5 Volts.
I couldn't find any precise documentation on the power supply for this computer. The only other thing I found out is that the battery was 12 Volts (I couldn't find how many Amps it had).
So how can I choose the right power supply? Should I listen to the specialist (a 33€ power supply that goes from 9 to 24 Volts with 2.2 Amps), should I go for a 12 Volts power supply (like the battery was, but still, I don't know how many Amps it was)? Or am I completly wrong and I should go for something else completly?