The company in question is Nyko, who is releasing the Nyko Power Pak + and Nyko Charge Base around the Nintendo 3DS’s March 27th North American release date. Up first, the Power Pak +, which is a sleek-looking battery pack that hangs onto the back of the Nintendo 3DS and is advertised to double it’s battery life – oh and incidentally – slightly increase the size of the handheld too … Yeah I know, can’t have cake and blah, blah, blah.
Just because you get 5 hours and 5-6 hours doesn’t mean yours is typical. I have had my 3DS since launch. With 3D on and no Nyko PowerPak+, I was getting 3-4, without 4-5. With PowerPak+, I get at least 10 hours at a time and usually 12.