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. Connecting two batteries will double the life of a battery when in use.
Everything Car Audio Dual Battery Wiring
How to hook up two batteries. The installation can be as simple as connecting two batteries in parallel to make one larger battery bank. This video is a quick video on how to connect two 12 volt batteries. 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. One way doubles the volts of the two batteries and the other keeps the same amount of volts. Powering such an inverter requires wiring two automotive batteries in series to make the inverter electrical circuit work. 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.
There are two ways to wire up two batteries. However some power inverters require a 24 volt dc power source. Many power inverters utilize a 12 volt dc power source such as an automobile battery. In parallel the voltage stays the same and in series it is doubled. Check out the diagram for more info. The series connection of two identical batteries allows to get twice the rated voltage of the individual batteries keeping the same capacity.
For my trolling motor i can troll for 5 hours.
Gallery of How To Hook Up Two Batteries
