Here I am writing the laptop review for Lenovo G50-80 Notebook after usage of 2.5 years. I have brought the laptop Lenovo g50-80 in end of 2015 with the configuration 4GB RAM, 500GB hard disk and i3 processor with inbuild genuine windows 10 operating system.
Performance wise it is a very good laptop for home purpose. And battery performance is simply awesome after usage of 30 months also still laptop is giving min 2hrs battery backup. I am impressed for backup. There is no noise from CPU and no heat.
RAM: 4GB is sufficient for normal usage. If you want to upgrade the RAM, you can upgrade the RAM size till 16GB.
Finally, I am satisfied with the laptop.