Depends on the battery. It varies greatly from a small battery to a large vehicle battery.
3 Ampere
Yes, a standard battery charger produces 13.8 volts when it is charging a battery. If you are thinking of using a charger that you plug into the wall that is used for electronic equipment, don't. The battery usually wants more amperage that they can produce and the device usually will burn out.
Connect three 12 volt batteries in series and you will have 36 volts but will only have the amperage of one of the batteries.
Hook then up in Series. Positive to negative. You then have 24 volts but the same amperage of one individual battery.that will short out other battery
Depends. Whats the amperage rating on the bulb and the battery? Is the 12 volt bulb LED? The equation to find your answer depends on how much your 12 volt bulb is drawing and how much your battery has. I have seen 12 volt bulbs that are searchlights and I have seen 12v bulbs that are little LED ones. Huge difference in the amperage draw which will have a massive difference in your answer to how long your 9 volt battery will last. Same goes for the amperage of your battery. I have been in the military and seen 6 volt batteries that are smaller than a AA and I have seen the 6V at walmart that are decent sized and much bigger than a 9v.If you want to power your 12v bulb for a long time, connect two 6v batteries in parallel. That will give you lots of amperage and a full 12 volts.Another AnswerA 12-V incandescent lamp, operating at 9 V, will operate well-below its rated power and will, therefore, last much longer than it it were operated at 12 V. Further to the original answer, lamps don't have 'amperage' (current) ratings and is certainly unrelated to 'how much the battery has'! Finally, in order to achieve 12 V, two 6-V batteries would need to be connected in series, NOT parallel.
No. The motor was designed to run on a specific voltage and any variance from it will not work. The amperage of the motor is what you should be looking at. A single 1.5 volt battery neither has the voltage nor the capacity to produce any thing close to the amperage you would need to run the 12 volt motor.
Yes, but know that when connected in series you will increase the voltage but the amps will stay the same as one battery. If you wire them in parallel you increase the amps but the voltage stays the same. Example: Connect two 12 volt batteries in series and you then have 24 volts with the same amperage as one battery. Connect two 12 volt batteries in parallel and you will have 12 volts but the amperage will double.
Divide the circuits amperage into the volt amps and you will get the voltage.
The amperage is governed by the load that is connected to the battery circuit. Divide that amperage into the 1.6 amp hours and that will give you the endurance of the battery in hours.
Without the amperage an answer can not be given.
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