i guess new vmu batteries are pretty expensive : r/dreamcast
How to Replace the Dreamcast VMU Batteries - Instructables
VMU - Wikipedia
Sega Dreamcast VMU batteries x 2 - Button Cell Battery - For VMU Memory Card | eBay
VMU Upgrades
Buy 2 x Dreamcast VMU Batteries (CR2032) Dreamcast Australia
VMU Power Supply Mod | Retro Consoles Wiki | Fandom
Official SEGA Dreamcast Visual Memory Unit Godzilla Green W/ New Battery VMU HKT-7000 (B) – Retro Games Japan
VMU Upgrades
SEGA Dreamcast VMU Aufsteller | Etsy
SEGA Dreamcast VMU CR2032 Batteries — Gametrog
Whats going on with this VMU? It works fine after changing rhe batteries but when I put it in a controller it turns off and makes the controller not work. Only way
Dreamcast VMU Teardown - iFixit
Dreamcast VMU Battery Terminal Replacement | Etsy
Dreamcast VMU Teardown - iFixit
VMU Upgrades
Video game memory card:Sega Dreamcast VMU Memory Card - Sega — Google Arts & Culture