I managed to open up and view the battery model number, for anyone that interested; the battery required is Model: RC30-0248 Rated Capaticty: 5209mAh / 80Wh Rated Voltage: 15.4V This look like it will match, although the page says 2020 advance model, I purchase my Razer Blade in 2018. Razer Blade 15" Advanced Model Laptop Battery
