Yes, you hook them in parallel. Pos to pos, and neg to neg.
Yes, if you connect the two batteries in series. You will then have 16 volts, but the current will stay the same as if you only had one battery connected.
Wire two of the 12 volt batteries in series and the third battery in parallel with the other two. As the two batteries wired in series will give you 24 volts but the amps of only one of the batteries, unless you need the extra amperage of that third battery I would just go with two batteries wired in series. But if you want to use three batteries then connect the positive from one battery to the negative of the other battery. This will give you 24 volts. Now just connect the negative of the third battery to the negative of the first battery connected in series with the second battery. Now connect the positive to the second battery to the positive of the third battery. You will now still have 24 volts but twice the amperage of one of the batteries.
Connect three 12 volt batteries in series and you will have 36 volts but will only have the amperage of one of the batteries.
Yes, a AA battery typically provides 1.5 volts, so you would need to connect multiple AA batteries in series to reach 12 volts. For example, connecting eight AA batteries in series would provide a total of 12 volts.
Two 24 volt batteries in parallel will give you 24 volts. The only other way is two 12 volt batteries in series.
You only need 2 12 volt batteries to get 24 volts. Join the negative post on one battery to the positive post on the other battery with a cable then connect the remaining positive and negative posts to the vehicle that has a 24 volt system.
That is Impossible. You can however make two 6 volt batteries into a 12 volt system by wiring the two 6 volts batteries in Series. You will then have an output voltage of 12 volts but the amperes will only be what one of the batteries have, In other words the volts will double but the amps will stay the same as if you only had 1 battery connected.
Because they are connected in series. Lets say you have a flashlight that holds 2 D cell batteries. Each battery puts out 1.5 volts. Connect them in series and together they put out 3 volts. The flashlight is designed to run on 3 volts. A electronic device that uses 4 AA batteries is using 6 volts even though each battery is only putting out 1.5 volts. Connected in series you add to the voltage with the addition of each new battery.
Connect them in series. With the 2 batteries sitting side by side just connect the negative terminal (-) on battery # 1 to the positive terminal (+) of battery # 2. Now connect the red hot cable to the positive terminal of battery # 1. Then connect the negative black cable to battery #2. You will have 12 volts but the amperage of only 1 battery.
If you connect the four batteries in series, you get 1.5 x 4 = 6 volts total. So the four batteries give more volts.If the question is which alternative will deliver more power as in watts, that depends on both the batteries and the application. As an example, a 12 V car battery has higher capacity and can deliver far more watts than eight torch batteries in series for the same number of volts.But as long as the maximum current the application draws is no higher than what the smallest batteries can deliver, the power (watts) will depend only on voltage.
You can only do that with a transformer. Or you can wire three 9 volt batteries in series to get 27 volts.
I believe that AA batteries are rated at 1.5 volts each, so if you were to take 6 of them and wire them together in series that would produce a circuit that's pushing 9 volts. But recharge AA batteries are only 1.2 volts per unit so a little lower voltage will be the result. I think most devices will still work on the lower voltage. Also these batteries will never last as long as the regular dry cell.