230W RC30-0248 AC Adapter Charger Compatible for Razer Blade Pro 17/4K Laptop Razer Blade 15 w GTX1060 GTX1070 RTX2070 RTX2080 19.5V 11.8A Power Supply Cord

I recently purchased a Razer Blade 17 - 4K 144Hz - GeForce RTX 3080 Ti - Black and want a second power supply so I can easily move between my office and den and have a place to plugin. I thought this would be a cheaper alternative to ordering from Razer. Upon plugging the laptop in using this cable however, I received a message on the laptop that stated the power was not adequate to charge the laptop. Ugh. Returning, it's useless to me because it does not work as advertised.