It's time to replace the battery in my 5285 2in1. My manual shows 2 acceptable? batteries: 42wh and a 31.5wh. I notice they have the same physical dimensions. The only difference I see is that the 31.5 has a higher voltage than the 42. My laptop currently has the 31.5. Does anyone know or have any experience with possible issues if I replace the 31.5 with the 42?