starting problem

I am new to the forum and would first like to thank everybody for allowing to join your group…I have a 1997 and 1998 foreman 400..The 98 is my first issue..It ran out of gas,and after refilling it had a lot of extended cranking which ran the battery down..It was an old battery so i replaced it…..After charging and installing new battery i tried hitting the start button and there was nothing….It shows 12.6v and when u turn the key on there are no lights on at all..I checked the fuses and all are ok..Any advice would be greatly appreciated…