I just came back from travel after 2 weeks and didn't bring my laptop. I know for sure when I left, my triton 500 has 100% of battery charge left. When I turn on the laptop just now, it shows 62% of battery left. Is this a normal behaviour? When I left it was not left in hibernate or sleep mode. It was turned off completely. My model is PT515-51 (RTX 2060).