10 battleships...maybe acceptable with current player numbers, it is a lot for most of factions.
But time window should be definitely bigger than 1,5 hour. Aka you should buff stations HP.
Because if you want balance - can 10 people build core 4 base in 1,5 hour? Definitely not, even with jumptrading. So why should be same amount of people able to destroy it multiple times faster?
