was charging h3 batteries with charger provided with drone - one battery charged up with no issues - inserted 2nd, battery in charger and saw that the red and green indicator lights were flashing - that's fine - it means charger is balancing the cells and charging - monitored charging process for 1/2 hour or so - noticed the charger was getting really warm - warmer than expected(first time charging - new drone owner) decided to unplug - since charger does not have a voltage indictor - i turned on controller and h3 with said battery to see what controller sees for drone battery level - controller indicated 100% charge - any ideas of what is going on with charging process - note - did not see solid green light on charger for fully charged - should i be concerned?