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Can I Use Higher Wattage Charger For Laptop. While the voltage and polarity should match with the original charger the amperage and wattage should exceed the required value or match it. Using a higher wattage charger is perfectly safe.
Using Ower Or Higher Wattage Laptop Charger Bad Facts from techwithtech.com
Later I got an email from support. But since USB-C is the first USB technology that allows high enough throughput to charge laptop batteries you may have a new laptop that charges through. Set it to the performance profile.
The current rating on the charger indicates the maximum current it can supplySo it is OK to use a charger that can supply more current but not the other way around.
But and this is a big but you cannot use a 19 Volt ac adapter on an 185 Volt-laptop. While the voltage and polarity should match with the original charger the amperage and wattage should exceed the required value or match it. A higher wattage charger can supply this power easily and hence you wont run into any issues. A general rule of thumb is if your laptop is shipped with 65 watts adapter then you can use either 90 watt or 135 watt adapters.
