Yes, the battery on the Samsung N150 Plus can be replaceable. I recommend seeing our troubleshooting page to make sure the battery is the main problem on your Samsung N150 Plus before buying and replacing a new battery to your laptop.
Yes, the Samsung N150 Plus laptop Ram can be replaced. The Samsung N150 Plus comes with 1 GB of RAM, but we recommend upgrading to at least 2 GB of RAM for better performance. Before making any changes to the RAM, we recommend checking our troubleshooting page