However some power inverters require a 24 volt dc power source. Following this example where there are two 12v 200ah batteries connected in series we will have a total voltage of 24v volts and an unchanged capacity of 200ah ampere hour.
12 Volt 2 Battery System Wiring Diagram H1 Wiring Diagram
How to hook up two batteries. If you install a second battery in the caravan link the two together as shown in drawing two then connect the positive from your solar regulator to the positive on battery b and the negative from your solar regulator to the negative on battery a that way any voltage drops will be equal between the two batteries. Adding another battery is a good idea if you want to add a powerful stereo subwoofer system cabin lighting electric windlass wakeboard ballast pump or any of the other electrical and electronic accessories we all want. Check out the diagram for more info. The installation can be as simple as connecting two batteries in parallel to make one larger battery bank. In parallel the voltage stays the same and in series it is doubled. One way doubles the volts of the two batteries and the other keeps the same amount of volts.
There are two ways to wire up two batteries. Connecting two batteries will double the life of a battery when in use. For my trolling motor i can troll for 5 hours. Many power inverters utilize a 12 volt dc power source such as an automobile battery. Powering such an inverter requires wiring two automotive batteries in series to make the inverter electrical circuit work. The series connection of two identical batteries allows to get twice the rated voltage of the individual batteries keeping the same capacity.
This video is a quick video on how to connect two 12 volt batteries.
Gallery of How To Hook Up Two Batteries
