Overall decent batteries, the Bt2 connector is Superior to ph2 for 1s but more expensive aswell.
The compound for glueing on the Caps got Changed, i have at least 10 older batteries where the connectors werent physically supported anymore and plugging them in was a Nightmare. New stuff Looks more reliable. 1/12 batteries dropped to 0V before use, it was on a shelf for half a year, the Others Held Up fine though.
I´m flying the batteries in my Meteor 75 and they last for 6 minutes. Perfect!
I get about 3 minutes of flight on the cetus pro using this battery.
Good quality, got these as extras for the Cetus Pro starter kit. Good price and shipping was timely. Very satisfied!
BT2.0 450mAh 1S 30C Battery (4PCS)