in Australia the TB48s is a lot more expensive as DJI wont ship it here direct, im wondering if anyone has any real worlld expirience with them on the M600 pro and whether they are worth the extra money?  Particularly what the extra flight time is like?

the website states what the average time is between the two. it's about 6 minutes with no payload and 2 minutes fully loaded. I don't think its worth it. another 5+ minutes minimum with payload might be worth it

You can enter our website and know about the extended flight time with TB48S. Here is the link: http://www.dji.com/matrice600-pro?site=brandsite&from=nav.