Andy

I opened the case and found melted insulation and exposed conductors of the fine gauge wire which i presume to be for a thermal sensing device (maybe a thermistor or thermostatic switch ) .The wires were detached and hanging loosely between two of the 12 little batteries. I separated the two wires from one another and taped over them with electrical tape, closed the case, and plugged the battery into the charger. The hot/cold delay dot-dash signal did not come on. The battery charged normally in about half an hour with the usual LED indicators. I assume that I have disabled the hot/cold delay circuit, but at least I have a working battery and our coastal climate is moderate, so I doubt if the battery will ever need the delay. If anyone would like to comment about possible safety hazard or what to look for to reconnect the sensing device, I welcome your comments and/or emojis.

My DeWaltDW9116 charger shows the "hot/cold delay" code for one of my two 9096 nicad batteries (chinese Vanon clones) but the other battery charges normally without the dot-dash code. this is NOT the dot-dot-dot "replace pack" code. The hot/cold code stays on even at room temperature with the "bad" one. Vanon refused to honor their lousy 30 day battery warranty, but agreed that it is faulty. Does this make any sense? Can a battery fail in such a way as to fool the charger even if it is not hot or cold? Don't bother to tell me not to buy Chinese imitations; lesson learned.