charging laptop with a diffrent manufacture charger
I have a Dell Vostro 1500 laptop, but unfortunately I lost the power supply in Indianapolis last month. I have a power supply for an old Sony laptop lying around, that looks like it fits in the same port.
Is it safe to use the old power supply in the new laptop? If they're not compatible will it simply not work, or will it reverse the polarity and open a gate to Zuul or something similar?
(A new PSU is on order, but UPS failed to deliver it yesterday and I need it today, hence this stopgap solution.)