The short answer is yes 1. make sure you are getting enough amps for the application. A V-8 diesel which may times has two batteries needs somewhere near 1000 cold crank amps total 2. if the vehicle did not have two batteries from the factory but you wish to add a second battery please see a qualified technition before doing this. You may have another issue that is easily repaired.
No. If you connect two 12 volt batteries in series(positive to negative) to make 24 volts, you will have 100 amp hours. If you connect two 12 volt batteries in parallel(pos to pos, neg to neg) you will stay at 12 volts but have 200 amp hours
A series circuit will produce more voltage. For example, two 12 volt automotive batteries both have a 600 amp capacity. Connect the 2 batteries in series and you will have 24 volts with 600 amp capacity. Connect the 2 batteries in parallel and you will have 12 volts with 1200 amp capacity.
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.
Connecting two 12 volt batteries together in series would doubled the amp hours ie 125amp hour +125amp hour = 250amp hour and the voltage stays the same at 12 volts. Connect them in parallel and the voltage will double to 24 volts and the amp hours will stay the same ie 125 amp hours.
You would connect two 12-v batteries in series to get 24 Volts, but if you have four, you can connect two sets of batteries in parallel and then connect the two sets of parallel batteries in series, giving you 24 volts with twice the ampere-hour capacity (four batteries rather than two).
connect its two terminals with a wire.
Connect two 12 volt batteries in series and you will have 24 volts.
Connect two 6 volt batteries in series. Connect the other two 6 volt batteries in series. Now connect those 2 pairs you have together in parallel. You will end up with 12 volts.
two 12 volt batteries. positive to negative between the two batteries then hoock up your positive on amp to pos of one battery negative to the other battery and you will have 24 volts.
There are two ways to connect two batteries. One in parallel. Technically no problem, as long as both batteries have same voltage. Connecting them in series is a bad idea. Both operate at different voltages across its terminal. While being charged, the battery with a lower AH gets fully charged (and get overcharged) while the other battery is still being charged. Control system cuts of charging since over all voltage raises. While discharging, the battery with lower AH get drained completely before the other one gets discharged.
Yes, connect them in series.
Assuming the truck has a 12 volt system, connect the batteries in parallel, that is positive to positive and negative to negative.