How to Increase the Current in a DC to AC Inverters

Increase the number of batteries or solar panels connected to the inverter. Wire the panels or batteries together in parallel configuration, linking all positive terminals to positive terminals and all negative terminals to negative terminals. Parallel configuration maintains the voltage rating of the system while adding the amperage of all output devices together. For example, two 12-volt 650-amp batteries connected together in parallel will yield 1300 amps of 12-volt power. Two 5-amp solar panels wired in parallel will produce 10 amps of power.

Add new solar panels to the system. Connect the positive leads of new solar panels to the positive leads of the existing panels. Connect the negative leads of the new panels to the negative leads of the existing panels. If the panels are not equipped with self-attaching clips, crimp electrical ring connectors to the ends of the panel leads with electrical pliers. Fasten the ring connectors together with small nuts and bolts.

Connect extra batteries to the battery bank. Connect the positive posts of the new batteries to the positive posts of the existing batteries with battery cables. Do not connect all the cables together in a cluster, but run individual cables from one battery to the next. For example, connect the cable from the positive post on the first battery to the positive post on the second battery and then run another cable from the positive post of the second battery to the positive post of the third battery, and so on. Repeat the procedure by connecting the negative posts of the new batteries to the negative posts on the existing batteries in the same manner. Tighten the clamps of the battery cables to the battery posts with a wrench.