This is a very important thread for everyone using a N900 as a data or video device, especially those who do not have the Mugen cover Double-cell mod. Contributing financially to the research means that we can all save quite a bit on batteries rather than buying an expensive series of duds. Maybe if everyone contributed the price of a battery, or contacted dr_frost_dk to had a cell in need of testing delivered to him for the new comparison chart. Remember contributing to a new battery comparison chart saves you money in the end.