Changing the save game battery in a Sega Megadrive / Genesis cartridge! Not much else to say apart from that I made some mistakes (FAIL!) and have highlighted them in the video rather than annotations, as people seem to have them turned off! ***Subscribe to get your fix! *** – Visit the blog at https://www.markfixesstuff.co.uk … Continue reading Change the Save battery in a Sega Megadrive/Genesis cartridge