My first CTX 3030 charger would not seat the battery properly and would sometimes charge the battery and sometimes not, all the while LEDs saying the battery was charging. Sometimes the blinking LEDs would stop when fully charged, suggesting seating was proper. I tried all various maneuvers, and it boiled down to seating. I spilled brackish water in the charger and now the LEDs indicate malfunction (2 LEDs on left upper and lower constant red). Haven't been able to fix, yet, so bought new charger for about $160.
Bought a new charger and arrived yesterday. Put dead battery on charger 17 hrs ago and LEDs indicate battery is still charging (top left green blinking, bottom left green constant). Tried various maneuvers (unplugging, repositioning battery, etc., etc.,) and charging LEDs continue to indicate charging. Placed battery on CTX and it indicates fully charged. This does not appear to be a seating issue since the battery charged. About to contact seller, but CTX 3030 battery charger seems to have numerous problems!
FYI, Alkaline battery pack works well...