Every component tells you its limits. Panel: Voc 41 V, Isc 11 A, Vmp 34 V, Imp 10.3 A, 350 Wp. Controller: 12/24 V auto, 30 A, max PV input 100 V. Battery: 12.8 V LiFePO4, 100 Ah, 1,280 Wh, max charge 50 A. Inverter: 1,000 W continuous, 2,000 W surge, pure sine. The installer's craft is matching them: two 350 Wp panels in series = 82 V Voc — under the controller's 100 V limit; their 10.3 A within its 30 A; the battery's 50 A charge limit respected.