Well i got my 2 multistar 4000 3s batteries from hobbyking. I have a dual battery setup with a garmin virb elite cam. My bird is a phantom 1.1.1. Total takeoff weight with the multistar batteries is about 1320 grams. It was a breezy day wind about 10 to 15mph. Did a hover test kept her at about 3 to 4 ft. It was a bit hard to control her sometimes when wind got gusty. Not to mention was only getting 3 sattelites the green light was flashing rapidly 3 times. I timed her about 22 min before a gust of wind sent her into our bushes its ok was only 3 ft high. I had to quickly pack her up as i had to get to work. Had more time as i did not get the low battery warning lites on the drone before she hit the ground. I am so far happy with these batteries as i only get about 14 to 15 min with the stock dual batteries.