A 3 volt battery is a battery that produces 3 volts.
Many watch batteries produce 3 volts.
No.
It depend on what the rating voltage of the LEDs are.
No, the battery charger has to match the voltage of the battery it is to charge.
it can get really hot and burn the circuit
no, a 9 volt battery is small (goes in a smoke detector) a 9.6 volt battery is much larger, and it is not a DC battery (direct current) but NiCd (nickel cadmium.) two totally different things.
Impossible to do with a single 6 volt battery.
No
Install a 3 volt battery and forget any modifications. It will not operate on 12 volts.
Take 3 twelve volt batteries Run the + of battery #1 to the - of battery #2. Run the + of battery #2 to the - of battery #3. Use the + of battery #3 for your positive feed, and the - of battery #1 for your ground.
3 hours
No
if it is any think over 1 volt it is not a cell battery it is just a 6 volt battery if you had a 1 volt then it would be a cell battery
No, if they are wired in series you have 36 volts assuming each battery is a 12 volt battery. They will have to be wired in parallel to output 12 volts. In that case you can charge them with a 12 volt charger but it will take 3 times as long as charging just one 12 volt battery.
A 6 volt wet battery has 3 cells. A 6 volt dry battery has 4 cells.
No, it will overcharge the 6 volt battery.
Add two 1 volt batteries in series with it.
3-volt CR-2032