Check out the diagram for more info. Positive on both batteries should be connected to each other and negatives to each other.

Inverter Connection Diagram Install Inverter And Battery At
How to connect a 12v inverter to two 12v batteries. Thats 12 v parrallel wiring. Thanks for the quick reply everyone. Connect multiple batteries in parallel with your power inverter solar hybrid inverter or ups to increase its backup. If you own a single battery inverter you can connect more batteries in parallel as overall voltage of pack will remain the same while capacity multiplies. Two 12 volt batteries in parallel give you 12 volts. You will need a total of 375.
Two 12 volt batteries in series give you 24 volts. And then postive and negativ eont he inverter go to positive and negative on. How many batteries do i need for my inverter. Make sure that your power inverter could afford charging several parallel connecting batteries at a time. For example connecting three 12v batteries in series with 24v inverter will damage it. If the input rating on the inverter no matter what the output wattage says 12 volts you must only connect two batteries in parallel.
Similarly you can not connect single 12v battery to a 24v inverter. To size a battery bank we take the hours needed continuously x watts total wattsdc voltsamps needed. I didnt realise that my controllers 60a was measured on the output i assumed it only related to relay size. Connecting them in series will seriously damage the inverter. In parallel the voltage stays the same and in series it is doubled. Well this has thrown up some problems.
There are two ways to wire up two batteries. 3 hours of run time needed 1500 watts 4500 watts total 12 volts dc 375 amps. So as i shared a diagram about one 12v battery connected to the 12 volts inverter ups we connect 2 batteries to a 24 volts inverter 24v ups 24 volts battery but we can make 24 volts by connecting 2 12volts batteries in series. One way doubles the volts of the two batteries and the other keeps the same amount of volts. Now cableing is not an issue as everything is within 2 metres but the battery bank is made up of 6 2v cells each 680ah and as they are less than a year. The best way to connect 30v panels to 12v batteries.
We have published diagrams for connecting two four six eight ten or twelve batteries in series with inverter solar inverter or ups. If charger is.