Good afternoon. I'm facing a problem. DST01A battery from a Potensic Dreamer 4k drone, it has been lying unused for a year. Now when I connect the charger, the green LED blinks 3 times, then pause for 7 seconds and again blinks 3 times and so on endlessly. How can I solve this problem without buying a new one? Who knows to suggest? Perhaps someone has a schematic diagram of the battery power board.