Changes

The [[VMU]] for the [[Sega Dreamcast]] can be modified to accept as a power source an alternative to the pair of CR2032 batteries the VMU is designed forsuch as AA batteries or an AC adapter that supplies 6V of direct current. The new power source can be soldered directly to the VMU, or a common connector can be soldered to the VMU to enable you to detach the new power supply. ==Selecting a Power Source== ===Batteries=== Standard alkaline batteries (AA, AAA, C, D, etc.) can be used to power the VMU if 4 of them are used together. Since each alkaline battery generates 1.5V, putting 4 in series will generate 4*1.5V = 6V of DC current. It would be easiest to do this mod for AA or AAA batteries since it is not dificult to obtain an enclosure which holds 4 of one of those types. Rechareable Ni-MH AA or AAA batteries may not be able to power a VMU unless 5 are used in series since a typical rechargeable battery only generates 1.2V. This information needs to be verified. ===AC Adapter=== You may be able to power your VMU using a generic AC adapter if it meets the following criteria: *It must output 6V of direct current (DC) *It should be capable of outputing up to at least ~340mA of current  It may require less current than that, but that is the lowest amount I've been able to experiment with.