More than likely yes, but laptops are very expensive so I would not take a chance and use this charger.
Update: It didn't work :(
no
No
No, the charger will never get the battery up to a full charge. Usually chargers for equipment are about 1.5 volts higher that the device it is to charge.
no it can't
You do not charge a 7.2 volt battery with a 9.6 volt charger period unless you want to ruin the battery. You charge it with a 7.2 volt charger.
No, you cannot charge an 8 volt battery with a 6 volt charger. The voltage of the charger must match the voltage of the battery.
You would need a 24 volt charger. Connect them in parallel and you can charge them both with a 12 volt charger. Or disconnect them and charge each one separately.
No.No.
No, a 12 volt charger will overcharge a 8 volt battery and destroy it.
No, the battery charger has to match the voltage of the battery it is to charge.
Yes. A battery draws what it needs from the charger, the charger does not force current into the battery. The voltage spec. is the same. Things would be different if you were to try to charge a five volt battery with a ten volt charger. You would probably blow the battery. Hope this helps.