DSi AC Adapter
plug it in to the wall then your ds now your good!
is what i already said in the summary.............
ok just plug it in and with ur dsi and BOOM it works :D
I believe that, while it is a good replacement, Nintendo could ha ve made it so just one charger would work for all DS systems. The charger also loses it's charging power after a while, making charges longer and less affective, but otherwise it is a good piece of hardware.