Before I explain, I hope I posted in the right area ? Okay here goes. today I was charging my H batteries (giving the plus a rest) got to the last one and only got the red dots on the dy3. So after wiggling it around, got one green bar, or two on only one cell, which quickly went back to the red dots then the warning. So I removed the battery sprayed some contact cleaner on it, let it dry and re-inserted it, got a couple of green bars on one cell, and 25% wiggled some more, and nothing more, so I figured I'd hit the charge button to see what would happen, nothing so I then held the button storage lit up all the cells, and put it in storage @48%. Now It's charging normally ? I don't know if this was just a coincidence, or a way to save a dying battery ? I'll see later when I fly it ?