Well I would suggest the poster do his own research via the search button here or on google, because many have reported dreadfull battery drain from the m3 gba expansion pack, much more so than the ez3in1.
Like this one for example where it's conclusively tested proved that the m3real gba expansion pack is a monster on battery use, at least the first versions of it; maybe m3 improved more recent ones hopefully.... http://gbatemp.net/index.php?showtopic=95051
Like this one for example where it's conclusively tested proved that the m3real gba expansion pack is a monster on battery use, at least the first versions of it; maybe m3 improved more recent ones hopefully.... http://gbatemp.net/index.php?showtopic=95051







