My DS Lite has the same infinite battery. I turn it on once every 3 years to see if it still works and end up playing a game for 30 mins. I don't remember the l

My DS Lite has the same infinite battery. I turn it on once every 3 years to see if it still works and end up playing a game for 30 mins. I don't remember the last time i charged it ;) More than 3 years ago I'm sure.