Your laptop PS has big condensers in the input. Even supplied by mains through 6A quick fuse or automatic breaker it will drop first time, but may hold the second. Your inverter may be has fast fuse 2 - 5 A. If not so fast it may carry the initial load.
Hint: If you are not "both left handed" you can connect 20 - 200 Ohm (2 - 10 W) resistor in series to your Laptop Power Supply. After the initial start of the inverter you can shorten the resistor by a 3 - 5 A switch.
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Your laptop PS has big condensers in the input. Even supplied by mains through 6A quick fuse or automatic breaker it will drop first time, but may hold the second. Your inverter may be has fast fuse 2 - 5 A. If not so fast it may carry the initial load.
Hint: If you are not "both left handed" you can connect 20 - 200 Ohm (2 - 10 W) resistor in series to your Laptop Power Supply. After the initial start of the inverter you can shorten the resistor by a 3 - 5 A switch.