What Happens If I Use The Wrong Voltage Adapter. It’s only used if needed. This laptop adapter supplies an output voltage of 19 v and a maximum output current of 3.42 a, well above your original adapter's 2a maximum.
What happens if you use the wrong voltage? This is why it’s critical to use the correct voltage. Example, if a system requires a 12volt 1amp power supply, you may use a 12volt 2amp power supply but not a.5 amp(500milliamp) power supply.
When i was travelling, i used someone else's charger (19v, 2.34a) that had a far lower amperage than what my original charger was (19.5 vdc, 6.15a). The computer kept rejecting the charger, with the battery light flashing orange and the battery refusing to charge. It is the voltage that is of importance.
You can generally get away with a miniscule amount of volts higher than what the device requires but too high of volts is what will burn something out. It is only an indication of the maximum current that can be drawn through the adapter by any device that it is connected to, above which the adapter gets. The voltage can be change by supplying the wrong voltage or wrong type ac/dc.
20 volts is just a too much of a jump from the manufacturer's stamped device's voltage requirements. I have this old sony md recorder but it didn't have a power adapter with it. With electronics there is almost always a way to fix it.
For example, if you happen to use an ac dc adapter 12v while your device allows a power rating of 9v, you are in for some trouble. This doesn't mean your device will consume 3.42 a when its powered with this adapter; You can use a power supply capable of 50000 amps if you like.
What happens if you use the wrong voltage? You may use a higher amperage on your system, but not less amperage than the system is rated. So, clearly, using the wrong voltage adapter can harm your body.
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