say what you want about ordering cheap junk from China but i bought two of these. http://www.banggood.com/ELEBAR-Battery-For-DJI-PHANTOM-2500MAH-11_1V-20C-XT60-p-91256.html I charged them till they are green, checked them with my volt tester. All 12.5v. #1 4.15v, #2 4.16v, #3 4.18v the second battery is similar, (i thought each cell is supposed to be 4.18 though?) plug them into the phantom, and right after liftoff a flashing red low voltage light followed by autoland. My other brands of batteries are fine, just these two. I emailed customer service, waiting on a response.