I have been using the Dronelab 50C 4S batteries, and I really like them. Recently they released a new version which is branded 75C and I am going to test it see how they perform compared to the old drone lab.
We have been hearing good things about LiHV batteries, which is reportedly better than traditional LiPo, especially for mini quad racing. I ran some tests and tried to find out which battery is better.
I recently received a Drone Lab 4S 1500mah LiPo from RadioC.co.uk for review. I have flown with this battery more than 10 times now, and so far I am very pleased.