I realize this is an old post, but for fear of getting all the "use search function" comments, figured I'd post here before creating a new one.
I just received a new battery via Amazon today and have the exact issue as OP. Has this been more common since OP for others? FYI, I have 3-phantoms, 2-inspires, and several others, so not a newbie issue. Battery is brand new, no lights, (red or green), and nothing happens at all after trying to charge. Curious if others have had this issue with new P3 batteries, and if they're coming from Amazon?