6mm is no problem though (i checked this) I also run across this battery on Ebay, but was stopped me is 65mm length. No way you can fit it there. Maximum you can put there - is about 57mm ( w/o removing stilus silo). So maybe this battry is actually shrter? maybe 65mm is including the tabs, which you can bend? Morden, can you please give us measurements of this battery, in case you did them bofore mod.