Till the battery is fully charged. -Could be 4-12 hours.
The battery will attempt to charge the charger since the battery is at a higher voltage than the charger. Thus, the battery will simply discharge and generate heat. If you leave it plugged in long enough, eventually the battery will discharge to a point where it can maintain only 6V, where it will stay until you actually charge the battery.
yes
depends on your charger if you have charger that outputs about .8 volts it would take about 12 hour. Also if you want your battey to last longer buy the one that takes the longest to charge so it won't kill the battery.
Cannot be given a specific answer - too many variables. What type battery components? Frequency of usage? Length of charge time(s)? How long on the charger? Number of cycles?
This depends on the capacity of the battery and how much current is used to recharge it. Your best choice would be to get a smart charger that automatically shuts off when the charge is complete.
If it is an automatic charger let it charge until the charger shuts off.
A trickle charger is a car battery charger that is designed to be left on a car for very long periods of time to re-charge that car battery by slowly adding charge to the battery.
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.
I doubt the charger is putting out 30 Amps on a slow charge. need more info on battery and charger.
With a charger specifically designed to charge this battery.
As long as both batteries are the same voltage, you can jump start with the battery. If you want to charge the battery then use a battery charger.
As long as it is a 12 volt battery you can if you set the charger on low.
A .6 amp charger is a trickle charger. It would take days to charge a dead 12 volt battery with this charger. You need a 10 amp charger which will charge it in a couple of hours.
Depends on the amperage of the charger. A 10 amp charger will charge it in about 1 hour.
A very, very, long time with direct sunlight. Charge your battery with a battery charger
Whether it says it will or not, battery chargers will charge any battery, as long as they are for the same voltage. The charger puts out a set voltage, it doesn't know whether the battery is Energizer or not.
This depends on what kind or charger are you asking about and what kind of battery are you charging. My Phone charger takes two hours to charge my phone.