Setting out on my first solar and at all involveld electrical project I bought a 7.2aH batter. To you all this must sound like a joke but to start with this is all I need. However the idea of more capacity and ability to draw more amps keeps crossing my mind. So my question is simple. With my current setup...
PV panel ---> Charge controller ---> Loads
_____________ 7.2aH Lead acid
...could I simply add a larger capacity battery in parallel? The second battery would most likely be in the range of 14-30aH.
From my knowledge of how electrical circuits work I see now problem with doing so but I can't help but think there is some more fundemental problem with it.
Any help would be great, thank you