Hello, welcome Nse to the forums! There is a lot that goes into this hobby and a lot of tools are required for portables. I would suggest you read some of the threads on here as well as the PS2 trimming guide to gain a little more knowledge about the PS2 and general electronics. The Store here on BitBuilt offers an all in one power/battery management board that handles eveything power related for a trimmed PS2. I suggest you look into that as well. Good luck!