How long does it take to charge a 9.6V battery pack?
The time it takes to charge a battery pack will depend on the battery pack. A dead 9.6 volt battery pack that is rated at 500 mA-hours will take less time to charge than a dead 9.6 volt battery pack rated an 1000 mA-hours. Larger batteries take longer to charge than smaller ones. A given type of battery has a maximum charge rate associated with it. You can only put so much energy into a given battery pack so fast without damaging it. Different voltages and different capacities compound the problem. Different chargers make the problem even worse. Your best bet is to check the rating of your battery pack and the rating of your charger and do a little math, or just consult the manufacturer's specifications. A call to a local RC (remote control) hobby shop might help you gather information.