You’ll need to make sure that the “inverter” has a built in solar charge controller otherwise you’ll get nothing from your solar array. Whilst solar panels claim to output (say) 5amps they only do that when they are in full sunlight and there is no significant load connected to them. The charge controller makes sure that the panel does not see a significant pull from the load.
Try to calculate your load including battery charging draw. This will dictate how large of a charge controller and panel arrangement you’ll need. A PWM charge controller is simple to design but a MPPT controller will yield more power for longer. Bear in mind that you are only getting full solar output for about 5 hours a day. You can increase this by aligning the panels optimally with the sun until it sets.
