Sweet as.. at some point i should do the same with my DC.
Been thinking of doing repair vids for awhile. I repair amps, guitar pedals, guitars and random electronic things every now and then. (outside of repair Motorola radios (my job))
Do it. It's cheap to get the battery and holder. It really does take about as long as it takes in the video I made. For someone like you it's probably a 15 minute repair, if that. I have to hand it to Sega. The Dreamcast is super easy to take apart. I'm also working on a video of Dreamcast controller reconditioning of two trashed controllers and disassembling them is so freaking easy. I should be done shooting today. I can probably make 25 bucks a piece off them too.
If you do make videos share them. I'd love to see them! To get into it you just have to grab a camera and do them. You get better as time goes on. I mean, I went to school for film and TV production so I have a background in shooting and editing so the learning curve on editing was low for me. But I am using a new video editor called Shotcut. It's a free open source video editor that is easy to learn and has a lot of tutorials. It's good for people just starting out. I was using DaVinci Resolve on my laptop but it really works best on a two monitor setup. I can't use it on my desktop because it's 10 years old and doesn't meet the system requirements lol. I love Resolve because it's super powerful and you can do a lot, but it's a steep learning curve if you aren't familiar with video editing programs.