How to: Replace a GameBoy cartridge battery

If you have an old GameBoy game with save data you probably want to get around to changing the battery. If you don't you cold wake one day with all your save data gone!
You'll want to backup the save data first though because this will erase all the save data on the cartridge. You can check out my previous video about doing that here: / 7fwnz3nsug
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Video Chapters
0:00 Intro
1:10 What you'll need
2:45 Removing the old battery
5:25 Install the new battery
7:22 First test
7:56 Restore save data
8:20 Second test