Hey there. I bought my wife's Phantom 3 Standard - she had NEVER used it (a Christmas present) and it has sat around for 15 months collecting dust. Now that the thing is out of the box, I am having trouble getting the batteries charged up. There are 3 (she bought a couple spares). With 2 of them, there is one light bar that lights at the bottom and the circle button is red when you push it. Plugged into the charger the 4 lights blink in succession a few time, the circle button is still red and then NOTHING. All lights off. I have let it charge for 12 hours and no change. Same status. The remaining battery is just plain dead. No lights at all. Plugged for hours & hours into the charger - no change. I have tried a few of the solutions I found in this forum to wake the battery up, but it doesn't make a difference. Please advise. I don't really want to hear that all 3 batteries are worthless now. Some other advice would be better. Thanks!