Alt e gave me 300 watts panel, 310 ah battery, 25 amp charge controller.

Renogy gave me 196 watt solar and 60 ah battery

Doing my own calculation (following instructions on renogy website) I got 252 watts solar and 61 ah battery.

364/2=182/.8=227.5/90%=252 watts

364×2=728/12=61ah

60 amp hours sounds really low and i think i should be able to get by on 200 watts.

My loads are:

Maxxair fan 60 watts (probably high but i used 12v ×5amps) 3 hrs

Dometic cf18 37 watts 4hrs

Cell phone 24 watts 1hr

Laptop 50 watts 2hr

3 LEDs ?watts i think i used 1w in the calculation but i used the same for both.

What do you think? Which calculation sounds right? Or am i way off and missing something?