I fly the defiant as my main ship. I don't think that the Defiant needs a battle cloak. That would probably be overpowered. I do however see a few issues which could use attention:

1. Spam sees through and rips off cloak negating it's purpose. In KvF you might as well not use it as there's usually 1 or 2 carriers.

2. Context windows drop cloak. That makes no sense. I don't remember the Defiant decloaking every time Warf said something to Sisko.

3. The time to cloak is an issue. A battle cloak would be too short of a window (shoot, cloak, rinse, repeat). 10+ seconds to drop red alert is too long. As it stands now, the cloak, which uses a console space, is a bit of a one trick pony. In order to use it more than once during a spawn/lifespan in PvP you need to jet far from the battle and hope no spam is around or following you.

It would be nice to see #1 and 2 fixed. Perhaps there is some middle ground for #3.