Hi, I tried to remove the battery from its box the other day but its stuck fast and actually looks as though its at the limits size wise, any tips on removing it without destroying the box. Don't know why its stuck in or so big, the battery code appears to be correct for the NC29 and was in the bike when I bought it.

Is It a common problem?

mines is stuck but thats down to me being an idiot lol....

just take the battry terminal bolts out, run some string or wire throught each side and yank up, should do it...