The reason why has us look back to the bad days of laptop and other battery fires. I won't write at length but the new supplies are three wire designs that chat with the power management and won't charge if the wrong adapters are used. This leads to again, no.
Hi Cnet people. I have a laptop that requires 19.5v @ 5 Amps. Can two power supplies rated at 19.5v one being 3 amps the other being 2 amps be connected together to power up the laptop? Two power supplies, +ve to +ve, -ve to -ve both 19.5v different amperage but enough to power the laptop.