Hi Guys and Gals, I have been asking questions about a new to me engine I am getting and was informed I should replace the battery with a BCR as not to fry the board in the engine. Well that made me think I should check the rest of my PS2 engines. I don't know alot about engines and there batteries so here are some photos of what I have. If any of them should be changed out please let me know. I don't want to FRY any of my engines!
Thanks in advance for all your help!