4.62A is out of spec even for the XL6009 itself, so you will need a more powerful converter. In practice, the actual current you can get from these pre-fabricated DC-DC converters is further limited by their design. The cheapest ones and the smallest ones can barely deliver 2A continuously, before they start getting too hot and eventually shut down thanks to thermal protection. Websites selling them will still advertise them as 4A converters, without mentioning that 4A is in fact a spike value.
If you're lucky your laptop only pulls 4.62A occasionally, and a well-designed converter based on XL4015 or LTC3609 may suit your needs. Pick a module with a toroidal coil: these coils heat up quite a bit, so you don't want a coil which has good thermal contact with the PCB and contributes to the overheating of the converter chip.
If you don't want to guess, buy a real power supply rated for 5A or more of continuous load.